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Paitoon P, Sartsook A, Thongkham M, Sathanawongs A, Lumsangkul C, Pattanawong W, Hongsibsong S, Sringarm K. Sperm quality variables of sex-sorted bull semen produced by magnetic-activated cell sorting coupled with recombinant antibodies targeting Y-chromosome-bearing sperm. Theriogenology 2024; 219:11-21. [PMID: 38377714 DOI: 10.1016/j.theriogenology.2024.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 02/07/2024] [Accepted: 02/13/2024] [Indexed: 02/22/2024]
Abstract
The immunological sexing method using antibodies offers cost-effective, high-volume production but faces challenges in terms of X-sperm purity in sexed semen. This research aimed to produce sexed bull semen using highly specific recombinant antibodies in magnetic-activated cell sorting (MACS), evaluate sperm quality and kinematic parameters, and verify the sex ratio of sperm, embryos, and live calves. Fresh semen from two Angus bulls was separated into two equal groups: conventional (CONV) semen and semen sexed using MACS with Y-scFv antibody conjugation to separate two fractions, i.e., the X-enriched and Y-enriched fractions. Then, computer assisted semen analysis and imaging flow cytometry were used to evaluate sperm motility and kinematic variables, acrosomal integrity, sperm viability, and sperm sex ratios. The results showed that sperm motility and quality did not differ between X-enriched and CONV semen. However, the Y-enriched fraction showed significantly lower sperm quality than the X-enriched fraction and CONV semen. The sperm ratio revealed that X-sperm accounted for up to 79.50% of the X-enriched fraction, while Y-sperm accounted for up to 78.56% of the Y-enriched fraction. The sex ratio of embryos was examined using in vitro fertilization. The cleavage rates using CONV and X-enriched semen were significantly higher than that using Y-enriched semen. Accordingly, 88.26% female blastocysts were obtained by using X-enriched semen, and 83.58% male blastocysts were obtained by using Y-enriched semen. In farm trials, 304 cows were subjected to AI using X-enriched and CONV semen. The pregnancy rate did not differ between the X-enriched and CONV semen groups. On the other hand, X-enriched semen generated significantly more live female calves (83.64%) than CONV semen (47.00%). The MACS sexing method significantly enhanced the X-sperm purity in sexed semen, producing high-quality sperm, a high percentage of female blastocytes, and a high percentage of live female calves.
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Affiliation(s)
- Phanuwit Paitoon
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Apinya Sartsook
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Marninphan Thongkham
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Anucha Sathanawongs
- Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, 50100, Thailand
| | - Chompunut Lumsangkul
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Wiwat Pattanawong
- Faculty of Animal Science and Technology, Maejo University, Chiang Mai, 50290, Thailand
| | - Surat Hongsibsong
- School of Health Sciences Research, Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Korawan Sringarm
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand.
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2
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Yao M, Gong Z, Xu W, Shi X, Liu X, Tang Y, Xuan S, Su Y, Xu X, Luo M, Sui H. Establishment and optimization of an in vitro guinea pig oocyte maturation system. PLoS One 2023; 18:e0285016. [PMID: 37115798 PMCID: PMC10146542 DOI: 10.1371/journal.pone.0285016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Guinea pigs are a valuable animal model for studying various diseases, including reproductive diseases. However, techniques for generating embryos via embryo engineering in guinea pigs are limited; for instance, in vitro maturation (IVM) technique is preliminary for guinea pig oocytes. In this study, we aimed to establish and optimize an IVM method for guinea pig oocytes by investigating various factors, such as superovulation induced by different hormones, culture supplementation (e.g., amino acids, hormone, and inhibitors), culture conditions (e.g., oocyte type, culture medium type, and treatment time), and in vivo hCG stimulation. We found that oocytes collected from guinea pigs with superovulation induced by hMG have a higher IVM rate compared to those collected from natural cycling individuals. Moreover, we found that addition of L-cysteine, cystine, and ROS in the culture medium can increase the IVM rate. In addition, we demonstrated that in vivo stimulation with hCG for 3-8 h can further increase the IVM rate. As a result, the overall IVM rate of guinea pig oocytes under our optimized conditions can reach ~69%, and the mature oocytes have high GSH levels and normal morphology. In summary, we established an effective IVM method for guinea pig oocytes by optimizing various factors and conditions, which provides a basis for embryo engineering using guinea pigs as a model.
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Affiliation(s)
- Minhua Yao
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
| | - Zhaoqing Gong
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
| | - Weizhen Xu
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
| | - Xinlei Shi
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
| | - Xiaocui Liu
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
| | - Yangyang Tang
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
| | - Siyu Xuan
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
| | - Yanping Su
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
| | - Xinghua Xu
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
| | - Mingjiu Luo
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, P. R. China
| | - Hongshu Sui
- Department of Histology and Embryology, School of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, P. R. China
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Valente RS, Marsico TV, Sudano MJ. Basic and applied features in the cryopreservation progress of bovine embryos. Anim Reprod Sci 2022; 239:106970. [DOI: 10.1016/j.anireprosci.2022.106970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 03/10/2022] [Accepted: 03/19/2022] [Indexed: 11/30/2022]
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4
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Su Y, Wang L, Fan Z, Liu Y, Zhu J, Kaback D, Oudiz J, Patrick T, Yee SP, Tian X(C, Polejaeva I, Tang Y. Establishment of Bovine-Induced Pluripotent Stem Cells. Int J Mol Sci 2021; 22:ijms221910489. [PMID: 34638830 PMCID: PMC8508593 DOI: 10.3390/ijms221910489] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/04/2021] [Accepted: 09/24/2021] [Indexed: 11/22/2022] Open
Abstract
Pluripotent stem cells (PSCs) have been successfully developed in many species. However, the establishment of bovine-induced pluripotent stem cells (biPSCs) has been challenging. Here we report the generation of biPSCs from bovine mesenchymal stem cells (bMSCs) by overexpression of lysine-specific demethylase 4A (KDM4A) and the other reprogramming factors OCT4, SOX2, KLF4, cMYC, LIN28, and NANOG (KdOSKMLN). These biPSCs exhibited silenced transgene expression at passage 10, and had prolonged self-renewal capacity for over 70 passages. The biPSCs have flat, primed-like PSC colony morphology in combined media of knockout serum replacement (KSR) and mTeSR, but switched to dome-shaped, naïve-like PSC colony morphology in mTeSR medium and 2i/LIF with single cell colonization capacity. These cells have comparable proliferation rate to the reported primed- or naïve-state human PSCs, with three-germ layer differentiation capacity and normal karyotype. Transcriptome analysis revealed a high similarity of biPSCs to reported bovine embryonic stem cells (ESCs) and embryos. The naïve-like biPSCs can be incorporated into mouse embryos, with the extended capacity of integration into extra-embryonic tissues. Finally, at least 24.5% cloning efficiency could be obtained in nuclear transfer (NT) experiment using late passage biPSCs as nuclear donors. Our report represents a significant advance in the establishment of bovine PSCs.
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Affiliation(s)
- Yue Su
- Department of Animal Science, Institute of Systems Genetics, University of Connecticut, Storrs, CT 06268, USA; (Y.S.); (L.W.); (J.Z.); (J.O.); (X.T.)
| | - Ling Wang
- Department of Animal Science, Institute of Systems Genetics, University of Connecticut, Storrs, CT 06268, USA; (Y.S.); (L.W.); (J.Z.); (J.O.); (X.T.)
| | - Zhiqiang Fan
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA; (Z.F.); (Y.L.); (T.P.)
| | - Ying Liu
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA; (Z.F.); (Y.L.); (T.P.)
| | - Jiaqi Zhu
- Department of Animal Science, Institute of Systems Genetics, University of Connecticut, Storrs, CT 06268, USA; (Y.S.); (L.W.); (J.Z.); (J.O.); (X.T.)
| | - Deborah Kaback
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030, USA; (D.K.); (S.P.Y.)
| | - Julia Oudiz
- Department of Animal Science, Institute of Systems Genetics, University of Connecticut, Storrs, CT 06268, USA; (Y.S.); (L.W.); (J.Z.); (J.O.); (X.T.)
| | - Tayler Patrick
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA; (Z.F.); (Y.L.); (T.P.)
| | - Siu Pok Yee
- Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030, USA; (D.K.); (S.P.Y.)
| | - Xiuchun (Cindy) Tian
- Department of Animal Science, Institute of Systems Genetics, University of Connecticut, Storrs, CT 06268, USA; (Y.S.); (L.W.); (J.Z.); (J.O.); (X.T.)
| | - Irina Polejaeva
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA; (Z.F.); (Y.L.); (T.P.)
- Correspondence: (I.P.); (Y.T.)
| | - Young Tang
- Department of Animal Science, Institute of Systems Genetics, University of Connecticut, Storrs, CT 06268, USA; (Y.S.); (L.W.); (J.Z.); (J.O.); (X.T.)
- Correspondence: (I.P.); (Y.T.)
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Metabolites Secreted by Bovine Embryos In Vitro Predict Pregnancies That the Recipient Plasma Metabolome Cannot, and Vice Versa. Metabolites 2021; 11:metabo11030162. [PMID: 33799889 PMCID: PMC7999939 DOI: 10.3390/metabo11030162] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/02/2021] [Accepted: 03/08/2021] [Indexed: 12/23/2022] Open
Abstract
This work describes the use of mass spectrometry-based metabolomics as a non-invasive approach to accurately predict birth prior to embryo transfer (ET) starting from embryo culture media and plasma recipient. Metabolomics was used here as a predictive platform. Day-6 in vitro produced embryos developed singly in modified synthetic oviduct fluid culture medium (CM) drops for 24 h were vitrified as Day-7 blastocysts and transferred to recipients. Day-0 and Day-7 recipient plasma (N = 36 × 2) and CM (N = 36) were analyzed by gas chromatography coupled to the quadrupole time of flight mass spectrometry (GC-qTOF). Metabolites quantified in CM and plasma were analyzed as a function to predict pregnancy at Day-40, Day-62, and birth (univariate and multivariate statistics). Subsequently, a Boolean matrix (F1 score) was constructed with metabolite pairs (one from the embryo, and one from the recipient) to combine the predictive power of embryos and recipients. Validation was performed in independent cohorts of ETs analyzed. Embryos that did not reach birth released more stearic acid, capric acid, palmitic acid, and glyceryl monostearate in CM (i.e., (p < 0.05, FDR < 0.05, Receiver Operator Characteristic—area under curve (ROC-AUC) > 0.669)). Within Holstein recipients, hydrocinnamic acid, alanine, and lysine predicted birth (ROC-AUC > 0.778). Asturiana de los Valles recipients that reached birth showed lower concentrations of 6-methyl-5-hepten-2-one, stearic acid, palmitic acid, and hippuric acid (ROC-AUC > 0.832). Embryonal capric acid and glyceryl-monostearate formed F1 scores generally >0.900, with metabolites found both to differ (e.g., hippuric acid, hydrocinnamic acid) or not (e.g., heptadecanoic acid, citric acid) with pregnancy in plasmas, as hypothesized. Efficient lipid metabolism in the embryo and the recipient can allow pregnancy to proceed. Changes in phenolics from plasma suggest that microbiota and liver metabolism influence the pregnancy establishment in cattle.
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6
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Sun W, Li Y, Su J, Bao X, Ding R, Zhao G, Cao G, Hu S, Wang J, Sun Q, Yu H, Li X. Correlation between in vitro fertilization and artificial insemination in Holstein bulls. Anim Biosci 2021; 34:1879-1885. [PMID: 33677911 PMCID: PMC8563235 DOI: 10.5713/ab.20.0665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 02/16/2021] [Indexed: 11/27/2022] Open
Abstract
Objective Owing to the lack of breeding index for efficient and quick fertility evaluations of Holstein bulls when using traditional or genome-wide detection methods, this study aimed to determine whether in vitro fertilization (IVF) could be used as an indicator of conception rate of artificial insemination (AI). Methods Conventional and sexed frozen semen from nine bulls were used for IVF and AI. Results The IVF and AI conception rates of each bull were confirmed to be positively correlated between the conventional frozen and sexed frozen semen. The correlation coefficient R values of nine bulls between IVF and AI methods were 0.73 and 0.97 for the conventional frozen and sexed frozen semen, respectively. The average conception rate of three bulls undergoing AI was 69.5% and 64.2%, 61.8% and 58.8%, and 48.2% and 46.2% in first-, second-, and third-born cows when conventional frozen and sexed frozen semen were used, respectively, which showed a positive correlation with the fertilization rate in the same parity. We propose an evaluation standard to assess the fertilization ability of bulls based on their IVF test results, which is categorized into three grades: grade one, normal fertility bull with an AI conception rate of 40% ± 5% and IVF rate of 45%-60%; grade two, higher fertility bull with an AI conception rate of 50% ± 5% and IVF rate of 61%-80%; and grade three, highest fertility bull with an AI conception rate of 60% ± 5% and IVF rate of >80%. Conclusion These findings reveal that IVF results can be used as a breeding index for bulls to evaluate their AI conception ability, which may shorten the time required to select bulls for breeding.
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Affiliation(s)
- Wei Sun
- College of Life Science, Inner Mongolia University, Hohhot 010070, P.R. China.,The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, P.R. China.,Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot 011517, P.R. China
| | - Yunxia Li
- College of Life Science, Inner Mongolia University, Hohhot 010070, P.R. China.,The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, P.R. China.,Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot 011517, P.R. China
| | - Jie Su
- Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot 011517, P.R. China.,College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010018, P.R. China
| | - Xiangnan Bao
- Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot 011517, P.R. China
| | - Rui Ding
- Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot 011517, P.R. China
| | - Gaoping Zhao
- Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot 011517, P.R. China
| | - Guifang Cao
- Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot 011517, P.R. China.,College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010018, P.R. China
| | - Shuxiang Hu
- Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot 011517, P.R. China
| | - Jianguo Wang
- College of Life Science, Inner Mongolia University, Hohhot 010070, P.R. China.,The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, P.R. China
| | - Qingyuan Sun
- Institute of Zoology Chinese Academy of Science, Beijing 100101, P.R. China
| | - Haiquan Yu
- College of Life Science, Inner Mongolia University, Hohhot 010070, P.R. China.,The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, P.R. China
| | - Xihe Li
- College of Life Science, Inner Mongolia University, Hohhot 010070, P.R. China.,The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, P.R. China.,Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot 011517, P.R. China
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7
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Keles E, Malama E, Bozukova S, Siuda M, Wyck S, Witschi U, Bauersachs S, Bollwein H. The micro-RNA content of unsorted cryopreserved bovine sperm and its relation to the fertility of sperm after sex-sorting. BMC Genomics 2021; 22:30. [PMID: 33413071 PMCID: PMC7792310 DOI: 10.1186/s12864-020-07280-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 11/24/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The use of sex-sorted sperm in cattle assisted reproduction is constantly increasing. However, sperm fertility can substantially differ between unsorted (conventional) and sex-sorted semen batches of the same sire. Sperm microRNAs (miRNA) have been suggested as promising biomarkers of bull fertility the last years. In this study, we hypothesized that the miRNA profile of cryopreserved conventional sperm is related to bull fertility after artificial insemination with X-bearing sperm. For this purpose, we analyzed the miRNA profile of 18 conventional sperm samples obtained from nine high- (HF) and nine low-fertility (LF) bulls that were contemporaneously used to produce conventional and sex-sorted semen batches. The annual 56-day non-return rate for each semen type (NRRconv and NRRss, respectively) was recorded for each bull. RESULTS In total, 85 miRNAs were detected. MiR-34b-3p and miR-100-5p were the two most highly expressed miRNAs with their relative abundance reaching 30% in total. MiR-10a-5p and miR-9-5p were differentially expressed in LF and HF samples (false discovery rate < 10%). The expression levels of miR-9-5p, miR-34c, miR-423-5p, miR-449a, miR-5193-5p, miR-1246, miR-2483-5p, miR-92a, miR-21-5p were significantly correlated to NRRss but not to NRRconv. Based on robust regression analysis, miR-34c, miR-7859 and miR-342 showed the highest contribution to the prediction of NRRss. CONCLUSIONS A set of miRNAs detected in conventionally produced semen batches were linked to the fertilizing potential of bovine sperm after sex-sorting. These miRNAs should be further evaluated as potential biomarkers of a sire's suitability for the production of sex-sorted sperm.
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Affiliation(s)
- Esin Keles
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, CH-8057, Zurich, Switzerland
| | - Eleni Malama
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, CH-8057, Zurich, Switzerland.
- Veterinary Research Institute, Hellenic Agricultural Organization Demeter, 57001, Thermi, Thessaloniki, Greece.
| | - Siyka Bozukova
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, CH-8057, Zurich, Switzerland
| | - Mathias Siuda
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, CH-8057, Zurich, Switzerland
| | - Sarah Wyck
- Swissgenetics, CH-3052, Zollikofen, Switzerland
| | | | - Stefan Bauersachs
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, CH-8057, Zurich, Switzerland
| | - Heinrich Bollwein
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, CH-8057, Zurich, Switzerland
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8
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Magata F, Urakawa M, Matsuda F, Oono Y. Developmental kinetics and viability of bovine embryos produced in vitro with sex-sorted semen. Theriogenology 2020; 161:243-251. [PMID: 33340757 DOI: 10.1016/j.theriogenology.2020.12.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/03/2020] [Accepted: 12/06/2020] [Indexed: 02/06/2023]
Abstract
The present study aimed to elucidate the developmental kinetics, growth potential, and viability of bovine embryos produced in vitro with sexed semen. Bovine oocytes were fertilized in vitro using unsorted and X-sorted semen from the same Holstein bulls, and the kinetics of in vitro development were continuously monitored for 10 d through time-lapse cinematography. The blastocyst formation rate was lower in the X-sorted group than in the unsorted group (P < 0.01), whereas the normal fertilization rate did not differ between groups. Morphokinetic evaluation revealed that the incidence of blastomere fusion during the first cleavage division, termed reverse cleavage, was higher in the X-sorted group (P < 0.01). Furthermore, embryos produced with X-sorted semen showed slower growth throughout the developmental period than embryos produced with unsorted semen (P < 0.01). The cell number of the trophectoderm and inner cell mass of blastocysts was reduced in the X-sorted group (P < 0.01). In embryos that developed to the blastocyst stage, the hatchability (P < 0.05), chromosomal normality (P < 0.01), and survivability after the conventional frozen-thawing process (P < 0.05) were reduced in the X-sorted group compared to that in the unsorted group, indicating a compromised viability of embryos derived from X-sorted semen. Taken together, the first cleavage dysmorphism, delayed embryo growth, and impaired viability of embryos developed to the blastocyst stage may explain the mechanism of reduced fertility in embryos derived from sexed semen. The kinetic evaluation of early embryo development and de-selection of embryos presenting the aberrant first cleavage would be valid for clinical application to produce sexed embryos with high implantation potential.
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Affiliation(s)
- F Magata
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido, Japan; Department of Veterinary Medical Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
| | - M Urakawa
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido, Japan
| | - F Matsuda
- Department of Veterinary Medical Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Y Oono
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido, Japan
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9
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Ferré LB, Kjelland ME, Taiyeb AM, Campos-Chillon F, Ross PJ. Recent progress in bovine in vitro-derived embryo cryotolerance: Impact of in vitro culture systems, advances in cryopreservation and future considerations. Reprod Domest Anim 2020; 55:659-676. [PMID: 32144939 DOI: 10.1111/rda.13667] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/19/2020] [Indexed: 02/01/2023]
Abstract
Cryopreservation of in vitro-derived bovine embryos is a crucial step for the widespread reproduction and conservation of valuable high-merit animals. Given the current popularity of bovine in vitro embryo production (IVP), there is a demand for a highly efficient ultra-low temperature storage method in order to maximize donor ovum pickup (OPU) turn-over, recipient availability/utilization and domestic/overseas commercial trading opportunities. However, IVP bovine embryos are still very sensitive to chilling and cryopreservation, and despite recent progress, a convenient (simple and robust) protocol has not yet been developed. At the moment, there are two methods for bovine IVP embryo cryopreservation: slow programmable freezing and vitrification. Both of the aforementioned techniques have pros and cons. While controlled-rate slow cooling can easily be adapted for direct transfer (DT), ice crystal formation remains an issue. On the other hand, vitrification solved this problem but the possibility of successful DT commercial incorporation remains to be determined. Moreover, simplification of the vitrification protocol (including warming) through the use of an in-straw dilution without the use of a microscope is a prerequisite for its use under farm conditions. This review summarizes the bovine IVP embryo cryopreservation achievements, strengths and limitations of both freezing systems and prospective improvements to enhance cryosurvival, as well as perspectives on future directions of this assisted reproductive technology.
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Affiliation(s)
- Luis B Ferré
- National Institute of Agricultural Technology (INTA), Buenos Aires, Argentina
| | - Michael E Kjelland
- Conservation, Genetics & Biotech, LLC, Valley City, ND, USA.,Mayville State University, Mayville, ND, USA
| | - Ahmed M Taiyeb
- Conservation, Genetics & Biotech, LLC, Valley City, ND, USA.,Barz IVF Center for Embryo Research and Infertility Treatment, Kurdistan, Iraq
| | - Fernando Campos-Chillon
- Animal Science Department, California Polytechnic State University, San Luis Obispo, CA, USA
| | - Pablo J Ross
- Department of Animal Science, University of California, Davis, CA, USA
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10
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Review: Recent advances in bovine in vitro embryo production: reproductive biotechnology history and methods. Animal 2019; 14:991-1004. [PMID: 31760966 DOI: 10.1017/s1751731119002775] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
In vitro production (IVP) of embryos and associated technologies in cattle have shown significant progress in recent years, in part driven by a better understanding of the full potential of these tools by end users. The combination of IVP with sexed semen (SS) and genomic selection (GS) is being successfully and widely used in North America, South America and Europe. The main advantages offered by these technologies include a higher number of embryos and pregnancies per unit of time, and a wider range of potential female donors from which to retrieve oocytes (including open cyclic females and ones up to 3 months pregnant), including high index genomic calves, a reduced number of sperm required to produce embryos and increased chances of obtaining the desired sex of offspring. However, there are still unresolved aspects of IVP of embryos that limit a wider implementation of the technology, including potentially reduced fertility from the use of SS, reduced oocyte quality after in vitro oocyte maturation and lower embryo cryotolerance, resulting in reduced pregnancy rates compared to in vivo-produced embryos. Nevertheless, promising research results have been reported, and work is in progress to address current deficiencies. The combination of GS, IVP and SS has proven successful in the commercial field in several countries assisting practitioners and cattle producers to improve reproductive performance, efficiency and genetic gain.
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Marsico TV, de Camargo J, Valente RS, Sudano MJ. Embryo competence and cryosurvival: Molecular and cellular features. Anim Reprod 2019; 16:423-439. [PMID: 32435286 PMCID: PMC7234140 DOI: 10.21451/1984-3143-ar2019-0072] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 05/28/2019] [Indexed: 12/27/2022] Open
Abstract
Global cattle genetic market is experiencing a change of strategy, large genetic companies, traditionally recognized in the artificial insemination field, have also begun to operate in the embryo market. Consequently, the demand for in vitro produced (IVP) embryos has grown. However, the overall efficiency of the biotechnology process remains low. Additionally, the lack of homogeneity of post-cryopreservation survival results of IVP embryos still impairing a massive dissemination of this biotechnology in the field. A great challenge for in vitro production labs is to increase the amount of embryos produced with exceptional quality after each round of in vitro fertilization. Herein, we discuss the molecular and cellular features associated with the competence and cryosurvival of IVP embryos. First, morphofunctional, cellular and molecular competence of the embryos were addressed and a relationship between embryo developmental ability and quality were established with cryosurvival and pregnancy success. Additionally, determinant factors of embryo competence and cryosurvival were discussed including the following effects: genotype, oocyte quality and follicular microenvironment, in vitro production conditions, and lipids and other determining molecules. Finally, embryo cryopreservation aspects were addressed and an embryo-focused approach to improve cryosurvival was presented.
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Affiliation(s)
- Thamiris V. Marsico
- Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brasil.
| | - Janine de Camargo
- School of Veterinary Medicine, Federal University of Pampa, Uruguaiana, RS, Brasil.
| | - Roniele S. Valente
- Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brasil.
| | - Mateus J. Sudano
- Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brasil.
- School of Veterinary Medicine, Federal University of Pampa, Uruguaiana, RS, Brasil.
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Magnesium is a critical element for competent development of bovine embryos. Theriogenology 2019; 140:109-116. [PMID: 31473493 DOI: 10.1016/j.theriogenology.2019.08.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/19/2019] [Accepted: 08/12/2019] [Indexed: 02/06/2023]
Abstract
The study was designed to determine the impact of magnesium (Mg2+) on bovine embryo development. We found that two commercially available sources of bovine serum albumin (BSA) and fetal bovine serum (FBS) contained different amounts of Mg2+ residue: 4 ppm in ICPbio BSA, 114 ppm in Sigma BSA, and 44 ppm in FBS. When CR1 was used as basal medium, PVA and ICPbio BSA produced the lowest blastocyst yield (2.2-2.3%), whereas Sigma BSA increased blastocyst yield to 18.9% (P < 0.05). Supplementation of 1.4 mM MgCl2 into the medium increased the blastocyst rate in the ICPbio BSA group (29.4%) but not in the PVA group (5.4%; P < 0.05) to a level comparable to that of the FBS group (33.7%; P > 0.05). We next found that increasing concentrations of MgCl2 in the culture medium (ICPbio BSA) elevated blastocyst rate from 2.6% (0 mM), 38.4% (0.35 mM) to 50.2% (1.4 mM; P < 0.05), further maintained at 44.9% (2.1 mM) and 43.4% (2.8 mM) (P > 0.05). However, blastocyst rate was reduced to 31.4% (4.2 mM) and 29.4% (5.6 mM) when MgCl2 supplement was increased (P < 0.05). Comparable blastocyst development was achieved in both ICPbio BSA (30.0-33.1%) and Sigma BSA (37.4-38.7%) groups when 1.4 mM Mg2+ was supplemented regardless of its source (MgCl2 vs. MgSO4; P > 0.05). In embryo transfer experiments, higher rates of pregnancy (54.3 vs. 41.5%) and calving (44.3 vs. 32.5%) were achieved in the CR1-Mg2+-supplemented BSA group compared with the FBS group with co-culture, respectively (P < 0.05). These results demonstrate that Mg2+ is a key ion that promotes competent blastocyst and term development. Therefore, a simple and efficient defined medium (CR1-Mg2+-BSA) can successfully replace complex serum and somatic cell co-culture.
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Comparison between in vitro embryo production using Y-sorted sperm and timed artificial insemination with non-sorted sperm to produce crossbred calves. Anim Reprod Sci 2019; 208:106101. [PMID: 31405466 DOI: 10.1016/j.anireprosci.2019.06.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 04/17/2019] [Accepted: 06/18/2019] [Indexed: 11/21/2022]
Abstract
Due to the increasing use of in vitro embryo production (IVEP) and the importance of crossbreeding for beef production, pregnancy rates of Nelore recipients were evaluated following Fixed Time Embryo Transfer with fresh or vitrified IVEP embryos produced with Y-sorted sperm of Angus bulls (B. taurus) or Fixed Time Artificial Insemination using non-sorted sperm. For IVEP in Experiment 1, oocytes were obtained using Ovum Pick Up (OPU) (n = 84 embryos) or from ovaries from a slaughterhouse (SLAUGHTER, n = 66 embryos). In Experiment 2, with oocytes obtained by OPU, IVEP embryos were fresh (FRESH, n = 271) or after vitrification/warming (VITRIFIED, n = 79) and PR was compared with FTAI (n = 239). In Experiment 1, cleavage rates were 63.8% and 39.1% for OPU and SLAUGHTER groups, respectively (P = 0.02), and blastocyst rates were 30.5% and 14.7%, respectively (P = 0.09). The PR was similar when considering the source of oocytes (OPU = 35.7%; SLAUGHTER = 25.8%; P = 0.17). In Experiment 2, there was no difference in PR for FRESH or VITRIFIED embryos (34.3% and 30.4%, respectively, P = 0.72), but lesser than FTAI (47.7, P = 0.002). It is concluded that the IVEP with Y-sorted sperm associated with vitrification or embryos produced with oocytes from different sources did not affect PR when there was transfer of crossbred embryos into recipients, and can optimize large-scale application of IVEP technology; however, FTAI pregnancy rates with non-sex sorted sperm were greater.
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14
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Mogas T. Update on the vitrification of bovine oocytes and invitro-produced embryos. Reprod Fertil Dev 2019; 31:105-117. [PMID: 32188546 DOI: 10.1071/rd18345] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The combined use of reproductive technologies, such as transvaginal ovum-pick up and invitro embryo production followed by direct transfer of cryopreserved embryos, has great potential for enhancing genetic selection and optimising cross-breeding schemes in beef and dairy cattle production systems. This, along with an effective cryopreservation procedure for cow oocytes, will enable the long-term conservation of female genetic traits and the advance of embryo biotechnology in this species. However, the low fertilisation rates and developmental competence of cryopreserved oocytes still need to be improved. Over the past two decades, many research efforts tried to overcome individual features of the bovine oocyte that make it notoriously difficult to cryopreserve. In addition, pregnancy rates associated with invitro-produced (IVP) embryos remain lower than those obtained using invivo counterparts. This, together with a lack of a standard methodology for IVP embryo cryopreservation that provides easier and more practical logistics for the transfer of IVP embryos on farms, has hindered international genetic trade and the management of embryo banks. This review updates developments in oocyte and IVP embryo vitrification strategies targeting high production efficiency and better outcomes.
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Affiliation(s)
- Teresa Mogas
- Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain. Email
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15
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Bai Z, Lee MRF, Ma L, Ledgard S, Oenema O, Velthof GL, Ma W, Guo M, Zhao Z, Wei S, Li S, Liu X, Havlík P, Luo J, Hu C, Zhang F. Global environmental costs of China's thirst for milk. GLOBAL CHANGE BIOLOGY 2018; 24:2198-2211. [PMID: 29417720 DOI: 10.1111/gcb.14047] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 12/15/2017] [Accepted: 12/15/2017] [Indexed: 06/08/2023]
Abstract
China has an ever-increasing thirst for milk, with a predicted 3.2-fold increase in demand by 2050 compared to the production level in 2010. What are the environmental implications of meeting this demand, and what is the preferred pathway? We addressed these questions by using a nexus approach, to examine the interdependencies of increasing milk consumption in China by 2050 and its global impacts, under different scenarios of domestic milk production and importation. Meeting China's milk demand in a business as usual scenario will increase global dairy-related (China and the leading milk exporting regions) greenhouse gas (GHG) emissions by 35% (from 565 to 764 Tg CO2eq ) and land use for dairy feed production by 32% (from 84 to 111 million ha) compared to 2010, while reactive nitrogen losses from the dairy sector will increase by 48% (from 3.6 to 5.4 Tg nitrogen). Producing all additional milk in China with current technology will greatly increase animal feed import; from 1.9 to 8.5 Tg for concentrates and from 1.0 to 6.2 Tg for forage (alfalfa). In addition, it will increase domestic dairy related GHG emissions by 2.2 times compared to 2010 levels. Importing the extra milk will transfer the environmental burden from China to milk exporting countries; current dairy exporting countries may be unable to produce all additional milk due to physical limitations or environmental preferences/legislation. For example, the farmland area for cattle-feed production in New Zealand would have to increase by more than 57% (1.3 million ha) and that in Europe by more than 39% (15 million ha), while GHG emissions and nitrogen losses would increase roughly proportionally with the increase of farmland in both regions. We propose that a more sustainable dairy future will rely on high milk demanding regions (such as China) improving their domestic milk and feed production efficiencies up to the level of leading milk producing countries. This will decrease the global dairy related GHG emissions and land use by 12% (90 Tg CO2eq reduction) and 30% (34 million ha land reduction) compared to the business as usual scenario, respectively. However, this still represents an increase in total GHG emissions of 19% whereas land use will decrease by 8% when compared with 2010 levels, respectively.
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Affiliation(s)
- Zhaohai Bai
- Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, Shijiazhuang, China
- Department of Soil Quality, Wageningen University, Wageningen, The Netherlands
| | - Michael R F Lee
- Rothamsted Research, Sustainable Agriculture Science, North Wyke, UK
- School of Veterinary Science, University of Bristol, Langford, UK
| | - Lin Ma
- Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, Shijiazhuang, China
| | - Stewart Ledgard
- AgResearch Limited, Ruakura Research Centre, Hamilton, New Zealand
| | - Oene Oenema
- Department of Soil Quality, Wageningen University, Wageningen, The Netherlands
- Wageningen Environmental Research, Wageningen, The Netherlands
| | | | - Wenqi Ma
- College of Resources & Environmental Sciences, Agricultural University of Hebei, Baoding, China
| | - Mengchu Guo
- College of Resources and Environmental Sciences, China Agriculture University, Beijing, China
| | - Zhanqing Zhao
- Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, Shijiazhuang, China
| | - Sha Wei
- College of Resources and Environmental Sciences, China Agriculture University, Beijing, China
| | - Shengli Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xia Liu
- School of Mathematics and Science, Hebei GEO University, Shijiazhuang, China
| | - Petr Havlík
- Ecosystems Services and Management Program, International Institute for Applied Systems Analysis, Laxenburg, Austria
| | - Jiafa Luo
- AgResearch Limited, Ruakura Research Centre, Hamilton, New Zealand
| | - Chunsheng Hu
- Key Laboratory of Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, Shijiazhuang, China
| | - Fusuo Zhang
- College of Resources and Environmental Sciences, China Agriculture University, Beijing, China
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Huang HY, Lai YL, Yao DJ. Dielectrophoretic Microfluidic Device for in Vitro Fertilization. MICROMACHINES 2018; 9:mi9030135. [PMID: 30424069 PMCID: PMC6187277 DOI: 10.3390/mi9030135] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 03/14/2018] [Accepted: 03/15/2018] [Indexed: 11/20/2022]
Abstract
The aim of this work was to create a microfluidic platform that uses in vitro fertilization (IVF) and avoids unnecessary damage to oocytes due to the dielectrophoretic force manipulation of the sperms and oocytes that occurs in a traditional IVF operation. The device from this research can serve also to decrease medium volumes, as well as the cost of cell culture under evaporation, and to prevent unnecessary risk in intracytoplasmic sperm injection (ICSI). To decrease the impact and destruction of the oocyte and the sperm, we adopted a positive dielectrophoretic force to manipulate both the sperms and the oocyte. The mouse oocytes were trapped with a positive dielectrophoretic (p-DEP) force by using Indium Tin Oxide (ITO)-glass electrodes; the ITO-glass electrode chip was fabricated by wet etching the ITO-glass. The polydimethylsiloxane (PDMS) flow-focusing microfluidic device was used to generate microdroplets of micrometer size to contain the zygotes. The volume of the microdroplets was controlled by adjusting the flow rates of both inlets for oil and the DEP buffer. As a result, the rate of fertilization was increased by about 5% beyond that of the DEP treatment in traditional IVF, and more than 20% developed to the blastocyst stage with a low sperm-oocyte ratio.
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Affiliation(s)
- Hong-Yuan Huang
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, 5, Fu-Hsing Street, Kwei-Shan, Tao-Yuan 333, Taiwan.
- Department of Obstetrics and Gynecology, Chang Gung University and College of Medicine, 259, Wen-Hua 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan.
| | - Yun-Li Lai
- Department of Power Mechanical Engineering, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan.
- Institute of NanoEngineering and MicroSystems, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan.
| | - Da-Jeng Yao
- Department of Power Mechanical Engineering, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan.
- Institute of NanoEngineering and MicroSystems, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan.
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Jin SK, Yang WX. Factors and pathways involved in capacitation: how are they regulated? Oncotarget 2018; 8:3600-3627. [PMID: 27690295 PMCID: PMC5356907 DOI: 10.18632/oncotarget.12274] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 09/23/2016] [Indexed: 01/07/2023] Open
Abstract
In mammals, fertilization occurs via a comprehensive progression of events. Freshly ejaculated sperm have yet to acquire progressive motility or fertilization ability. They must first undergo a series of biochemical and physiological changes, collectively known as capacitation. Capacitation is a significant prerequisite to fertilization. During the process of capacitation, changes in membrane properties, intracellular ion concentration and the activities of enzymes, together with other protein modifications, induce multiple signaling events and pathways in defined media in vitro or in the female reproductive tract in vivo. These, in turn, stimulate the acrosome reaction and prepare spermatozoa for penetration of the egg zona pellucida prior to fertilization. In the present review, we conclude all mainstream factors and pathways regulate capacitation and highlight their crosstalk. We also summarize the relationship between capacitation and assisted reproductive technology or human disease. In the end, we sum up the open questions and future avenues in this field.
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Affiliation(s)
- Shi-Kai Jin
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou, China
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18
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Leite A, Andrade V, Silva E, Borges A. Efeito da adição do ácido linoleico conjugado no cultivo in vitro de embriões F1 Holandês x Zebu na sobrevivência pós-vitrificação. ARQ BRAS MED VET ZOO 2017. [DOI: 10.1590/1678-4162-9238] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
RESUMO Avaliou-se o efeito da adição do ácido linoleico conjugado (CLA) ao meio de cultivo in vitro na viabilidade pós-vitrificação de embriões F1 Holandês x Zebu. Foram utilizados três meios de cultivo: controle (n=340 oócitos): meio SOF e soro fetal bovino (SFB), sem o CLA; SFB+CLA (n=359 oócitos): meio SOF, SFB e CLA; CLA (n=339 oócitos): meio SOF e CLA, sem o SFB. Todos os blastocistos produzidos foram submetidos à vitrificação, pelo método de Open Pulled Straw. Quinze blastocistos de cada tratamento foram fixados para quantificação lipídica por coloração com Sudan Black B. Para avaliar a viabilidade embrionária, foi observada a capacidade de reexpansão e eclosão pós-aquecimento dos embriões (controle=27; SFB+CLA=30; CLA=17). Foram realizadas transferências em um ou dois embriões por receptora para avaliação da sobrevivência in vivo: T1 [receptoras que receberam um blastocisto (n=17 embriões, sendo controle=5, SFB+CLA=6 e CLA=6)]; T2 [receptoras que receberam dois blastocistos, (n= 54 embriões, sendo controle=18, SFB+CLA=14 e CLA=22)]. Não houve diferença nas taxas de clivagem (62,1%; 74,0%; 74,0% para controle; SFB+CLA; CLA, respectivamente), produção de blastocistos em relação aos clivados (59,7%; 47,7%; 38,3% para controle; SFB+CLA; CLA, respectivamente) e produção de blastocistos em relação ao total de oócitos (37,1%; 35,4%; 28,3% para controle; SFB+CLA; CLA, respectivamente) (P>0,05). Houve diminuição de gotículas lipídicas nos embriões cultivados em meio suplementado com CLA em relação aos embriões cultivados na presença do SFB e na ausência do CLA (P<0,05). A taxa de reexpansão foi maior no grupo controle (70,4%) em relação ao CLA (47,1%) e menor no grupo SFB+CLA (43,3%) (P<0,05). O CLA foi eficaz em reduzir a deposição de lipídeos intracitoplasmáticos nas células embrionárias, porém não houve diferença de viabilidade após a desvitrificação dos embriões.
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Affiliation(s)
- A.C. Leite
- Universidade Federal de Minas Gerais, Brazil
| | | | | | - A.M. Borges
- Universidade Federal de Minas Gerais, Brazil
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Ferré LB, Chitwood JL, Fresno C, Ortega HH, Kjelland ME, Ross PJ. Effect of different mini-volume colloid centrifugation configurations on flow cytometrically sorted sperm recovery efficiency and quality using a computer-assisted semen analyzer. Reprod Domest Anim 2017; 53:26-33. [PMID: 28891229 DOI: 10.1111/rda.13048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Accepted: 06/28/2017] [Indexed: 11/30/2022]
Abstract
Straws of sex-sorted sperm are usually packaged at a low concentration (e.g., ~2.1 × 106 sperm/ml) and cost significantly more than unsorted conventional semen from the same sire. In order to maximize the efficiency of using sex-sorted sperm under in vitro fertilization conditions, the selection of an appropriate sperm separation technique is essential. In this study, the effect of using different silane-coated silica colloid dilutions and layering configurations during centrifugation of sex-sorted sperm was examined over an extended period of incubation time. Sperm recovery and viability after centrifugation using the colloid separation technique were measured along with several sperm motility parameters using CASA. For this purpose, frozen and thawed sex-sorted sperm samples were centrifuged using mini-volume single-layer (40%, 60% and 80%) and mini-volume two-layer (45%/90%, 40%/80% and 30%/60%) separation configurations using PureSperm® . A single layer of 40% PureSperm® recovered significantly more sex-sorted sperm (78.07% ± 2.28%) followed by a single layer of 80% PureSperm® (68.43% ± 2.33%). The lowest sperm recovery was obtained using a two-layer PureSperm® dilution of 45%/90% (47.57% ± 2.33%). Single-layer centrifugation recovered more sorted sperm (68.67% ± 1.74%) than two layer (53.74% ± 1.74%) (p < .0001). A single layer of 80% PureSperm® exhibited the highest sorted sperm viability (72.01% ± 2.90%) after centrifugation (p < .05). The mini-volume single layer of 80% PureSperm® was determined to be an effective alternative to a two-layer centrifugation configuration for sex-sorted sperm selection. In addition, single-layer colloid dilution of 80% performed either as well as or significantly outperformed the other treatments, as well as the control, with regard to motility (MOT) for all time periods of analysis.
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Affiliation(s)
- L B Ferré
- Instituto Nacional de Tecnología Agropecuaria, Rafaela, Santa Fe, Argentina
| | - J L Chitwood
- Department of Animal Science, University of California, Davis, CA, USA
| | - C Fresno
- Computational Genomics Division, National Institute of Genomic Medicine (INMEGEN), México, México
| | - H H Ortega
- Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral/CONICET, Santa Fe, Esperanza, Argentina
| | - M E Kjelland
- Conservation, Genetics and Biotech, LLC, Vicksburg, MS, USA
| | - P J Ross
- Department of Animal Science, University of California, Davis, CA, USA
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Murillo A, Muñoz M, Martín-González D, Carrocera S, Martínez-Nistal A, Gómez E. Low serum concentration in bovine embryo culture enhances early blastocyst rates on Day-6 with quality traits in the expanded blastocyst stage similar to BSA-cultured embryos. Reprod Biol 2017; 17:162-171. [PMID: 28479126 DOI: 10.1016/j.repbio.2017.04.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 04/06/2017] [Accepted: 04/12/2017] [Indexed: 12/23/2022]
Abstract
In bovine, single in vitro embryo culture in protein-free medium from Day-6 to Day-7 leads to expanded blastocyst (XB) with improved pregnancy and birth rates after cryopreservation. Under these conditions, early blastocysts (EB) progress to the XB stage at higher rates than morulae (M). However, embryo production with BSA in culture prior to Day-6 leads to low EB rates. We investigated whether a very low FCS concentration (0.1%) in culture from Day-1 to Day-6 would improve EB rates and, subsequently, increase XB rates on Day-7 after single culture in protein-free medium. The quality of embryos produced was evaluated in terms of survival to cryopreservation, apoptosis percentage, lipid accumulation and transfer to recipients. On Day-6, EB rates from embryos cultured with FCS were higher than with BSA (P=0.022). On Day-7, XB rates were higher in embryos from Day-6 EB than from Day-6M, both with and without FCS (P<0.005). After vitrification/warming of Day-7 XB, 100% embryos survived at 24h in all treatments, and total cell number and apoptosis percentage were not affected by the presence of FCS or embryonic stage on Day-6. Cryopreserved and fresh embryos produced with FCS until Day-6, and then deprived of protein and cultured individually, led to pregnancies after ET. In conclusion, minute FCS concentration improves EB rates on Day-6 leading, after one-day single culture without protein, to more XBs. The quality of XB produced with FCS compares well with XB produced with BSA in terms of apoptosis, lipid accumulation and pregnancy.
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Affiliation(s)
- A Murillo
- Centro de Biotecnología Animal, SERIDA, Camino de Rioseco 1225, 33394 Gijón, Spain.
| | - M Muñoz
- Centro de Biotecnología Animal, SERIDA, Camino de Rioseco 1225, 33394 Gijón, Spain
| | - D Martín-González
- Centro de Biotecnología Animal, SERIDA, Camino de Rioseco 1225, 33394 Gijón, Spain
| | - S Carrocera
- Centro de Biotecnología Animal, SERIDA, Camino de Rioseco 1225, 33394 Gijón, Spain
| | - A Martínez-Nistal
- Unidad de Microscopía Fotónica y Proceso de Imágenes, Servicios Científico Técnicos, Universidad de Oviedo, Asturias, Spain
| | - E Gómez
- Centro de Biotecnología Animal, SERIDA, Camino de Rioseco 1225, 33394 Gijón, Spain
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An LY, Chaubal SA, Liu Y, Chen Y, Nedambale TL, Xu J, Xue F, Moreno JF, Tao S, Presicce GA, DU F. Significant heparin effect on bovine embryo development during sexed in vitro fertilization. J Reprod Dev 2017; 63:175-183. [PMID: 28163265 PMCID: PMC5401811 DOI: 10.1262/jrd.2016-142] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was to investigate the effect of different heparin concentrations in the course of sexed in vitro fertilization (IVF), on bovine embryonic development and development to term following
embryo transfer (ET). With a total of 9156 oocytes for IVF, sorted as well as unsorted sperm from four bulls had different heparin requirements for achieving the highest rate of development in vitro. However, when
optimal heparin concentrations were used (40 to 80 µg/ml), the performance of X-sorted sperm (0.3 × 106/ml/IVF droplet) from all four bulls, as judged by blastocyst development (Bulls A, B, C, and D: 25.2, 19.7, 25.1,
and 9.8%, respectively), was significantly increased, and the blastocyst rate was comparable to that observed with unsorted sperm at certain heparin concentrations within the four bulls. We determined that near-optimal blastocyst
development was possible with sorted sperm from all four bulls, when a heparin concentration of 40 µg/ml was used. Pregnancy rates at d 70 post ET ranged from 39.1 to 40.3% (P > 0.05), and the calving rates ranged from 34.4 to
35.1% (P > 0.05), when heparin was used at a concentration of 10 μg/ml (n = 236), 20 μg/ml (n = 189), and 40 μg/ml (n = 305), respectively. Our study demonstrates that, although the sorted sperm of different bulls performed
optimally over a range of heparin concentrations, a generally accepted heparin concentration of 40 µg/ml can be set for sexed IVF. This improvement is beneficial when sexed embryo production by ovum pickup and IVF is an essential
component of genetic breeding programs.
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Affiliation(s)
- Li-You An
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210046, PR China
| | | | - Yanhong Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210046, PR China
| | - Yexiang Chen
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210046, PR China
| | | | - Jie Xu
- Renova Life, Inc., Maryland 20742, USA
| | - Fei Xue
- Renova Life, Inc., Maryland 20742, USA
| | | | - Shenghong Tao
- Wuxi Entry-Exit Inspection and Quarantine Bureau, Jiangsu 214101, PR China
| | | | - Fuliang DU
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210046, PR China.,Renova Life, Inc., Maryland 20742, USA
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Quality and developmental rate of embryos produced with sex-sorted and conventional semen from superovulated dairy cattle. Theriogenology 2017; 87:135-140. [DOI: 10.1016/j.theriogenology.2016.08.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 07/27/2016] [Accepted: 08/12/2016] [Indexed: 11/24/2022]
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23
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Vargas Reyes JN, Chacón Jaramillo L. Cryopreservation method and composition of the vitrification solution affect viability of in vitro bovine embryos. REV COLOMB CIENC PEC 2016. [DOI: 10.17533/udea.rccp.v29n2a06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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24
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Li J, Zhu S, He X, Sun R, He Q, Gan Y, Liu S, Funahashi H, Li Y. Application of a microfluidic sperm sorter to in vitro production of dairy cattle sex-sorted embryos. Theriogenology 2016; 85:1211-8. [DOI: 10.1016/j.theriogenology.2015.12.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 12/02/2015] [Accepted: 12/03/2015] [Indexed: 11/25/2022]
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25
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An L, Ling PP, Zhu X, Liu Y, Zhang F, Ma X, Xu B, Wang Y, Du Z, Yang L, Xue F, Bella A, Presicce GA, Du F. Successful Vitrification ofIn vivoEmbryos Collected from Superovulated Japanese Black Cattle (Wagyu). Reprod Domest Anim 2016; 51:255-61. [DOI: 10.1111/rda.12674] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 01/14/2016] [Indexed: 11/30/2022]
Affiliation(s)
- L An
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - PP Ling
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - X Zhu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - Y Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - F Zhang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - X Ma
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - B Xu
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - Y Wang
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - Z Du
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - L Yang
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - F Xue
- Renova Life Inc.; College Park MA USA
| | - A Bella
- Istituto Superiore di Sanità; Rome Italy
| | | | - F Du
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
- Renova Life Inc.; College Park MA USA
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Sanches BV, Lunardelli PA, Tannura JH, Cardoso BL, Pereira MHC, Gaitkoski D, Basso AC, Arnold DR, Seneda MM. A new direct transfer protocol for cryopreserved IVF embryos. Theriogenology 2015; 85:1147-51. [PMID: 26739533 DOI: 10.1016/j.theriogenology.2015.11.029] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 11/25/2015] [Accepted: 11/30/2015] [Indexed: 11/27/2022]
Abstract
The global demand for in vitro-produced (IVP) embryos of determined sex has greatly increased over the last decade. Efficient protocols for the direct transfer of IVP embryos are lacking. This study aimed to compare the pregnancy rates for fresh, vitrified, or frozen/directly transferred IVP dairy cow embryos. Oocytes (n = 3171) recovered by ovum pickup (n = 112) from Girolando (Holstein-Gir) females (n = 36) were selected and submitted to IVM for 24 hours at 38.5 °C with 5% CO2 in air with saturated humidity. In vitro fertilization was performed with the thawed, sexed semen from 5 Holstein bulls. After IVF, presumptive zygotes were denuded and cultured for 7 days under the same IVM and IVF conditions of temperature and humidity, except with 5% CO2 and 5% O2. Grade I blastocysts were randomly assigned for either the transferred fresh, vitrified/thawing, or frozen/directly embryo transfer into previously synchronized recipient females. Conception rates were analyzed by binomial logistic regression, and a probability level of P < 0.05 was considered significant. The conception rates were 51.35 ± 1.87% (133/259) for the fresh embryos, 35.89 ± 3.87% (84/234) for the vitrified embryos, and 40.19 ± 4.65% (125/311) for the frozen directly transferred embryos. These data demonstrate that IVP embryos with sexed semen could be directly transferred into recipient cows with similar conception rates to vitrified embryos. The comparison found that the use of frozen embryos in direct transfer provides easier logistics and a more practical approach for the transfer of IVP embryos on dairy farms.
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Affiliation(s)
| | - Paula Alvares Lunardelli
- Laboratory of Animal Reproduction, State University of Londrina (UEL), Department of Veterinary Clinics (DCV), CCA, Londrina, Paraná, Brazil
| | | | | | | | | | | | | | - Marcelo Marcondes Seneda
- Laboratory of Animal Reproduction, State University of Londrina (UEL), Department of Veterinary Clinics (DCV), CCA, Londrina, Paraná, Brazil.
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Sperm Oxidative Stress Is Detrimental to Embryo Development: A Dose-Dependent Study Model and a New and More Sensitive Oxidative Status Evaluation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:8213071. [PMID: 26770658 PMCID: PMC4684862 DOI: 10.1155/2016/8213071] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 08/31/2015] [Indexed: 11/29/2022]
Abstract
Our study aimed to assess the impact of sperm oxidative stress on embryo development by means of a dose-dependent model. In experiment 1, straws from five bulls were subjected to incubation with increasing H2O2 doses (0, 12.5, 25, and 50 μM). Motility parameters were evaluated by Computed Assisted System Analysis (CASA). Experiment 2 was designed to study a high (50 μM) and low dose (12.5 μM) of H2O2 compared to a control (0 μM). Samples were incubated and further used for in vitro fertilization. Analyses of motility (CASA), oxidative status (CellROX green and 2'-7' dichlorofluorescein diacetate), mitochondrial potential (JC-1), chromatin integrity (AO), and sperm capacitation status (chlortetracycline) were performed. Embryos were evaluated based on fast cleavage (30 h.p.i.), cleavage (D = 3), development (D = 5), and blastocyst rates (D = 8). We observed a dose-dependent deleterious effect of H2O2 on motility and increase on the percentages of positive cells for CellROX green, capacitated sperm, and AO. A decrease on cleavage and blastocyst rates was observed as H2O2 increased. Also, we detected a blockage on embryo development. We concluded that sperm when exposed to oxidative environment presents impaired motility traits, prooxidative status, and premature capacitation; such alterations resulting in embryo development fail.
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Marinho LSR, Sanches BV, Rosa CO, Tannura JH, Rigo AG, Basso AC, Pontes JHF, Seneda MM. Pregnancy Rates to Fixed Embryo Transfer of Vitrified IVPBos indicus, Bos taurusorBos indicus × Bos taurusEmbryos. Reprod Domest Anim 2015; 50:807-11. [DOI: 10.1111/rda.12591] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 07/14/2015] [Indexed: 11/25/2022]
Affiliation(s)
- LSR Marinho
- Laboratório de Reprodução Animal; State University of Londrina (UEL); Londrina PR Brazil
| | - BV Sanches
- Laboratório de Reprodução Animal; State University of Londrina (UEL); Londrina PR Brazil
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - CO Rosa
- Laboratório de Reprodução Animal; State University of Londrina (UEL); Londrina PR Brazil
| | - JH Tannura
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - AG Rigo
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - AC Basso
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - JHF Pontes
- In Vitro Brasil Ltda; Mogi Mirim SP Brazil
| | - MM Seneda
- Laboratório de Reprodução Animal; State University of Londrina (UEL); Londrina PR Brazil
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Mikkola M, Andersson M, Taponen J. Transfer of cattle embryos produced with sex-sorted semen results in impaired pregnancy rate and increased male calf mortality. Theriogenology 2015; 84:1118-22. [PMID: 26174034 DOI: 10.1016/j.theriogenology.2015.06.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 06/15/2015] [Accepted: 06/17/2015] [Indexed: 10/23/2022]
Abstract
This study investigated the pregnancy rate and calf mortality after transfer of embryos produced using sex-sorted semen. Data for 12,438 embryo transfers performed on dairy farms were analyzed. Of these, 10,697 embryos were produced using conventional semen (CONV embryos) and 1741 using sex-sorted semen from 97 bulls (SEX embryos), predominantly of Ayrshire and Holstein breeds. Of the CONV embryos, 27.4% were transferred fresh, whereas of the SEX embryos, 55.7% were fresh. Recipient attributes (breed, parity, number of previous breeding attempts, and interval from calving to transfer) were comparable for both embryo types, heifers representing 57.8% of recipients in the CONV group and 54.8% in the SEX group. Recipients that were not artificially inseminated or did not undergo a new embryo transfer after the initial embryo transfer and had registered calving in fewer than 290 days after the transfer were considered pregnant. Pregnancy rate for recipients receiving CONV embryos was 44.1%, and for those receiving SEX embryos, it was 38.8%. The odds ratio for pregnancy in recipients receiving CONV embryos was 1.34 compared with SEX embryos (P < 0.001). The proportion of female calves was 49.6% and 92.3% in CONV and SEX groups, respectively. Overall, calf mortality was comparable in both groups. Mortality was similar in CONV and SEX groups (6.6% and 7.7%, respectively) for female calves. For male calves, mortality was 9.2% in the CONV group but significantly higher, 16.0% (P < 0.05), in the SEX group. This study showed that transfer of embryos produced with sex-sorted semen decreased the pregnancy rate by about 12% compared with embryos produced using conventional semen. Mortality of male calves born from SEX embryos was higher than for those born from CONV embryos.
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Affiliation(s)
- M Mikkola
- Department of Production Animal Medicine, University of Helsinki, Saarentaus, Finland.
| | - M Andersson
- Department of Production Animal Medicine, University of Helsinki, Saarentaus, Finland
| | - J Taponen
- Department of Production Animal Medicine, University of Helsinki, Saarentaus, Finland
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Caamaño JN, Gómez E, Trigal B, Muñoz M, Carrocera S, Martín D, Díez C. Survival of vitrified in vitro-produced bovine embryos after a one-step warming in-straw cryoprotectant dilution procedure. Theriogenology 2014; 83:881-90. [PMID: 25542458 DOI: 10.1016/j.theriogenology.2014.11.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 11/05/2014] [Accepted: 11/20/2014] [Indexed: 12/20/2022]
Abstract
Vitrification is an alternative to slow-rate freezing for cryopreserving bovine embryos. However, this technology requires simplification if it is to be used under field conditions. The main objective of this work was to develop a new system for the direct transfer of vitrified embryos to be used under farm conditions. For this, three objectives were set: (1) to compare the effect of vitrification, using the cryologic vitrification method (CVM), and slow-rate freezing on bovine embryo development and quality; (2) to develop a one-step warming procedure for bovine in vitro-produced (IVP) vitrified (by CVM) embryos; and (3) to assess the effects on embryo survival of a new method for the direct transfer of vitrified IVP bovine blastocysts. In vitro-produced blastocysts were initially either vitrified by CVM or subjected to slow freezing to compare embryo survival and quality (experiment 1). No differences were detected between these cryopreservation techniques in terms of the survival and quality variables at 24 hours or in terms of the proteins expressed. However, at 48 hours the vitrified embryos showed higher hatching rates, greater total cell numbers, and lower apoptotic indices (P < 0.05). In experiment 2, CVM-vitrified IVP blastocysts were warmed by the conventional two-step or one-step warming procedure by incubating them at 41 °C in 0.25 M sucrose for 10 minutes, 0.15 M sucrose for 10 minutes, or 0.25 M sucrose for 5 minutes. In addition, embryo transfer (ET) was performed using vitrified embryos warmed by the one-step procedure in 0.25 M sucrose solution for 5 minutes. As a control group, IVP fresh embryos were transferred to recipient females. No differences were observed in embryo survival or total cell number between any of the warming procedures. Moreover, no significant differences for pregnancy at 60 days were found between the ET groups. In experiment 3, expanded IVP blastocysts were then either vitrified using a conventional or a modified fiber plug designed to allow direct ET after in-straw cryoprotectant (CP) dilution. They were warmed using the one-step process (0.25 M sucrose, 5 minutes) in a 0.25 mL French straw. Embryo recovery associated with the modified fibreplug system was less reliable than with the conventional system. However, no differences were seen between the systems in terms of in vitro embryo survival among those finally recovered. Finally, IVP blastocysts were vitrified using conventional fibreplugs to maintain a high embryo recovery rate, and then warmed using the one-step warming in-straw CP dilution procedure, but using an adapter with a wider opening coupled to the French straw and a heated metal chamber to protect and keep the straw at 41 °C (experiment 4). No differences were seen in embryo survival rates between the two groups. The CVM combined with this new one-step warming in-straw CP dilution procedure could be used for direct ET under field conditions.
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Affiliation(s)
- J N Caamaño
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - E Gómez
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - B Trigal
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - M Muñoz
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - S Carrocera
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - D Martín
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain
| | - C Díez
- Genética y Reproducción Animal, Centro de Biotecnología Animal, SERIDA, Gijón, Asturias, Spain.
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Muñoz M, Uyar A, Correia E, Díez C, Fernandez-Gonzalez A, Caamaño JN, Martínez-Bello D, Trigal B, Humblot P, Ponsart C, Guyader-Joly C, Carrocera S, Martin D, Marquant Le Guienne B, Seli E, Gomez E. Prediction of pregnancy viability in bovine in vitro-produced embryos and recipient plasma with Fourier transform infrared spectroscopy. J Dairy Sci 2014; 97:5497-507. [PMID: 24997663 DOI: 10.3168/jds.2014-8067] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 05/27/2014] [Indexed: 12/26/2022]
Abstract
We analyzed embryo culture medium (CM) and recipient blood plasma using Fourier transform infrared (FTIR) metabolomics to predict pregnancy outcome. Individually cultured, in vitro-produced (IVP) blastocysts were transferred to recipients as fresh and vitrified-warmed. Spent CM and plasma samples were evaluated using FTIR. The discrimination capability of the classifiers was assessed for accuracy, sensitivity (pregnancy), specificity (nonpregnancy), and area under the receiver operator characteristic curve (AUC). Within all IVP fresh embryos (birth rate=52%), high AUC were obtained at birth, especially with expanded blastocysts (CM: 0.80±0.053; plasma: 0.89±0.034). The AUC of vitrified IVP embryos (birth rate = 31%) were 0.607±0.038 (CM, expanded blastocysts) and 0.672±0.023 (plasma, all stages). Recipient plasma generally predicted pregnancy outcome better than did embryo CM. Embryos and recipients with improved pregnancy viability were identified, which could increase the economic benefit to the breeding industry.
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Affiliation(s)
- M Muñoz
- Centro de Biotecnología Animal-Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Camino de Rioseco 1225, La Olla - Deva, 33394 Gijón, Asturias, Spain
| | - A Uyar
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, 310 Cedar street, LSOG 304B, New Haven, CT 06520; Department of Computer Engineering, Okan University, Tuzla Kampusu, 34959, Tuzla, Istanbul, Turkey
| | - E Correia
- Centro de Biotecnología Animal-Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Camino de Rioseco 1225, La Olla - Deva, 33394 Gijón, Asturias, Spain
| | - C Díez
- Centro de Biotecnología Animal-Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Camino de Rioseco 1225, La Olla - Deva, 33394 Gijón, Asturias, Spain
| | - A Fernandez-Gonzalez
- Servicios Científico Técnicos (Oviedo), Universidad de Oviedo, 33006 Oviedo, Asturias, Spain
| | - J N Caamaño
- Centro de Biotecnología Animal-Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Camino de Rioseco 1225, La Olla - Deva, 33394 Gijón, Asturias, Spain
| | - D Martínez-Bello
- U.T.E. Bos-Lugar de Bos, Guísamo 15640 Bergondo, A Coruña, Spain
| | - B Trigal
- Centro de Biotecnología Animal-Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Camino de Rioseco 1225, La Olla - Deva, 33394 Gijón, Asturias, Spain
| | - P Humblot
- Swedish University of Agricultural Sciences, PO Box 7054, SE75007 Uppsala, Sweden
| | - C Ponsart
- Union Nationale des Cooperatives D' Elevage et Insemination Animale (UNCEIA), Department of Research and Development, 13 rue Jouet, 94704 Maisons Alfort, France
| | - C Guyader-Joly
- UNCEIA, Station Expérimentale, 484 Chemin Darefin, 38300 Chateauvillain, France
| | - S Carrocera
- Centro de Biotecnología Animal-Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Camino de Rioseco 1225, La Olla - Deva, 33394 Gijón, Asturias, Spain
| | - D Martin
- Centro de Biotecnología Animal-Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Camino de Rioseco 1225, La Olla - Deva, 33394 Gijón, Asturias, Spain
| | - B Marquant Le Guienne
- Union Nationale des Cooperatives D' Elevage et Insemination Animale (UNCEIA), Department of Research and Development, 13 rue Jouet, 94704 Maisons Alfort, France
| | - E Seli
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, 310 Cedar street, LSOG 304B, New Haven, CT 06520
| | - E Gomez
- Centro de Biotecnología Animal-Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Camino de Rioseco 1225, La Olla - Deva, 33394 Gijón, Asturias, Spain.
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Hansen PJ. Current and future assisted reproductive technologies for mammalian farm animals. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 752:1-22. [PMID: 24170352 DOI: 10.1007/978-1-4614-8887-3_1] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Reproduction in domestic animals is under control by man and the technologies developed to facilitate that control have a major impact on the efficiency of food production. Reproduction is an energy-intensive process. In beef cattle, for example, over 50 % of the total feed consumption required to produce a unit of meat protein is consumed by the dam of the meat animal (Anim Prod 27:367-379, 1978). Sows are responsible for about 20 % of the total feed needed to produce animals for slaughter (Adv Pork Prod 19:223-237, 2008). Accordingly, energy input to produce food from animal sources is reduced by increasing number of offspring per unit time a breeding female is in the herd. Using beef cattle as an example again, life-cycle efficiency for production of weaned calves is positively related to early age at puberty and short calving intervals (J Anim Sci 57:852-866, 1983). Reproductive technologies also dictate the strategies that can be used to select animals genetically for traits that improve production. Of critical importance has been artificial insemination (AI) (Anim Reprod Sci 62:143-172, 2000; Stud Hist Philos Biol Biomed Sci 38:411-441, 2007; Reprod Domest Anim 43:379-385, 2008; J Dairy Sci 92:5814-5833, 2009) and, as will be outlined in this chapter, emerging technologies offer additional opportunities for improvements in genetic selection. Given the central role of reproduction as a determinant of production efficiency and in genetic selection, improvements in reproductive technologies will be crucial to meeting the challenges created by the anticipated increases in world population (from seven billion people in 2011 to an anticipated nine billion by 2050; World population prospects: the 2010 revision, highlights and advance tables. Working Paper No. ESA/P/WP.220, New York) and by difficulties in livestock production wrought by climate change (SAT eJournal 4:1-23, 2007).The purpose of this chapter will be to highlight current and emerging reproductive technologies that have the potential to improve efficiency of livestock production. The focus will be on technologies that manipulate male and female gametes as well as the stem cells from which they are derived and the preimplantation embryo. While technology is crucial to other interventions in the reproductive process like control of seasonal breeding, hormonal regulation of ovulation, estrous cyclicity and pregnancy establishment, feeding to optimize reproduction, minimizing environmental stress, and selection of genes controlling reproduction, these will not be considered here. Rather the reader is directed to other chapters in this volume as well as some reviews on other aspects of artificial manipulation of reproduction (Reprod Fertil Dev 24:258-266, 2011; Reprod Domest Anim 43:40-47, 2008; Reprod Domest Anim 43:122-128, 2008; Soc Reprod Fertil Suppl 66:87-102, 2009; Comprehensive biotechnology, Amsterdam, pp 477-485; Dairy production medicine, Chichester, pp 153-163; Theriogenology 76:1619-1631, 2011; Theriogenology 76:1568-1582, 2011; Theriogenology 77:1-11, 2012). Given the large number of mammalian species used for production of products useful for man and the diversity in their biology and management, the review will not be comprehensive but instead will use results from species that are most illustrative of the opportunities generated by assisted reproductive technologies.
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Affiliation(s)
- Peter J Hansen
- Department of Animal Sciences, D.H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, 110910, Gainesville, FL, 32611-0910, USA,
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Jo HT, Bang JI, Kim SS, Choi BH, Jin JI, Kim HL, Jung IS, Suh TK, Ghanem N, Wang Z, Kong IK. Production of female bovine embryos with sex-sorted sperm using intracytoplasmic sperm injection: efficiency and in vitro developmental competence. Theriogenology 2013; 81:675-82.e1. [PMID: 24360289 DOI: 10.1016/j.theriogenology.2013.11.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 11/06/2013] [Accepted: 11/07/2013] [Indexed: 11/24/2022]
Abstract
The production of embryos with a preselected sex sperm is important in the livestock industry. In this study, we examined the efficiency of producing female embryos by intracytoplasmic sperm injection (ICSI) with flow cytometry sorted (ssICSI) and unsorted (usICSI) bovine sperm, and their developmental competence in vitro. For comparison, bovine embryos were also produced by in vitro fertilization (IVF) with sorted (ssIVF) and unsorted (usIVF) bovine sperm. The semen used in this study was from a bull selected for its high fertility and blastocyst developmental competence among four bulls. We first examined and compared pronuclear (PN) formation and cleavage rates of the produced embryos among the treatment groups. Our results demonstrated that PN formation rates (judged by two pronucleus [2PN]) and cleavage rates in ssIVF group (23.1% and 43.6%) were lower than those in the usIVF (71.1% and 71.6%), usICSI (73.1% and 92.8%) and ssICSI (75% and 79.1%) groups, respectively (P < 0.05). Moreover, the blastocyst formation rate in the ssIVF group was less than those in the usIVF, usICSI, and ssICSI groups (2.7% vs. 30.2%, 28.7% and 24.7%, respectively; P < 0.05). Importantly, we reported that the blastocyst formation rate in the ssICSI group was similar to that in the usICSI group, which indicated that ICSI can rescue the damage introduced to sperm by flow cytometry-mediated sex-sorting. Of note, we achieved a blastocyst formation rate in the ssICSI group to be comparable with the usIVF group. We then examined embryo quality by counting the number of normal and apoptotic cells in blastocysts. It was found that, despite the fact that blastocyst formation rate in the ssIVF group was significantly lower than those in the usIVF, usICSI and ssICSI groups, there was no difference in total and apoptotic cell numbers among these groups (P > 0.05). Finally, karyotyping analysis demonstrated that the proportion of female embryos in the ssICSI and ssIVF groups was 100%, whereas it was 58.8% and 57.8% in the usIVF and usICSI groups, respectively. In conclusion, ICSI with flow cytometry sorted bovine sperm provides an alternative approach to produce embryos with predetermined sex.
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Affiliation(s)
- Hyun-Tae Jo
- Division of Applied Life Science (BK21 Program), Graduate School of Gyeongsang National University, Jinju, Gyeongsangnam-do, Republic of Korea
| | - Jae-Il Bang
- Division of Applied Life Science (BK21 Program), Graduate School of Gyeongsang National University, Jinju, Gyeongsangnam-do, Republic of Korea
| | - Seong-Su Kim
- Division of Applied Life Science (BK21 Program), Graduate School of Gyeongsang National University, Jinju, Gyeongsangnam-do, Republic of Korea
| | - Byung-Hyun Choi
- Division of Applied Life Science (BK21 Program), Graduate School of Gyeongsang National University, Jinju, Gyeongsangnam-do, Republic of Korea
| | - Jong-In Jin
- Division of Applied Life Science (BK21 Program), Graduate School of Gyeongsang National University, Jinju, Gyeongsangnam-do, Republic of Korea
| | - Heyng-Lyool Kim
- Dairy Cattle Improvement Center, National Agricultural Cooperation Federation, Goyang-si, Gyeonggi-do, Republic of Korea
| | - In-Suk Jung
- Korea Sexing Biotech Inc., Daegu, Gyeongsangbuk-do, Republic of Korea
| | - Tae-Kwang Suh
- Korea Sexing Biotech Inc., Daegu, Gyeongsangbuk-do, Republic of Korea
| | - Nasser Ghanem
- Division of Applied Life Science (BK21 Program), Graduate School of Gyeongsang National University, Jinju, Gyeongsangnam-do, Republic of Korea; Department of Animal Production, Faculty of Agriculture Cairo University, Giza, Egypt
| | - Zhongde Wang
- Department of Animal, Dairy, and Veterinary Sciences, School of Veterinary Medicine, Center for Integrated BioSystems, Utah State University, Logan, UT, USA
| | - Il-Keun Kong
- Division of Applied Life Science (BK21 Program), Graduate School of Gyeongsang National University, Jinju, Gyeongsangnam-do, Republic of Korea; Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Gyeongsangnam-do, Republic of Korea.
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Bonilla L, Block J, Denicol AC, Hansen PJ. Consequences of transfer of an in vitro-produced embryo for the dam and resultant calf. J Dairy Sci 2013; 97:229-39. [PMID: 24210495 DOI: 10.3168/jds.2013-6943] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 09/10/2013] [Indexed: 11/19/2022]
Abstract
No reports exist on consequences of in vitro production (IVP) of embryos for the postnatal development of the calf or on postparturient function of the dam of the calf. Three hypotheses were evaluated: calves born as a result of transfer of an IVP embryo have reduced neonatal survival and altered postnatal growth, fertility, and milk yield compared with artificial insemination (AI) calves; cows giving birth to IVP calves have lower milk yield and fertility and higher incidence of postparturient disease than cows giving birth to AI calves; and the medium used for IVP affects the incidence of developmental abnormalities. In the first experiment, calves were produced by AI using conventional semen or by embryo transfer (ET) using a fresh or vitrified embryo produced in vitro with X-sorted semen. Gestation length was longer for cows receiving a vitrified embryo than for cows receiving a fresh embryo or AI. The percentage of dams experiencing calving difficulty was higher for ET than AI. We observed a tendency for incidence of retained placenta to be higher for ET than AI but found no significant effect of treatment on incidence of prolapse or metritis, pregnancy rate at first service, services per conception, or any measured characteristic of milk production in the subsequent lactation. Among Holstein heifers produced by AI or ET, treatment had no effect on birth weight but the variance tended to be greater in the ET groups. More Holstein heifer calves tended to be born dead, died, or were euthanized within the first 20d of life for the ET groups than for AI. Similarly, the proportion of Holstein heifer calves that either died or were culled for poor health after 20d of age was greater for the ET groups than for AI. We observed no effect of ET compared with AI on age at first service or on the percentage of heifers pregnant at first service, calf growth, or milk yield or composition in the first 120d in milk of the first lactation. In a second experiment, embryos were produced using 1 of 2 culture media: synthetic oviductal fluid-bovine embryo 1 (SOF-BE1) or Block-Bonilla-Hansen 7 (BBH7). We detected no difference between cows receiving an SOF-BE1 or BBH7 embryo in gestation length, the percentage of cows in which parturition was induced, or the percentage of cows that experienced calving difficulty, retained placenta, prolapse, or metritis. Among Holstein heifers, birth weight was higher for BBH7 calves than for SOF-BE1 calves. Treatment had no significant effect on calf death. Results indicate that calves born as a result of IVP-ET are more likely to experience alterations in birth weight and increased death in early life but that there were few consequences to the dam of carrying a fetus derived by IVP-ET.
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Affiliation(s)
- L Bonilla
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611
| | - J Block
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611; Ovatech LLC, Gainesville, FL 32608
| | - A C Denicol
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611
| | - P J Hansen
- Department of Animal Sciences, D. H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville 32611.
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Cochran SD, Cole JB, Null DJ, Hansen PJ. Single Nucleotide Polymorphisms in Candidate Genes Associated with Fertilizing Ability of Sperm and Subsequent Embryonic Development in Cattle1. Biol Reprod 2013; 89:69. [DOI: 10.1095/biolreprod.113.111260] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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Rasmussen S, Block J, Seidel G, Brink Z, McSweeney K, Farin P, Bonilla L, Hansen P. Pregnancy rates of lactating cows after transfer of in vitro produced embryos using X-sorted sperm. Theriogenology 2013. [DOI: 10.1016/j.theriogenology.2012.10.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Rath D, Barcikowski S, de Graaf S, Garrels W, Grossfeld R, Klein S, Knabe W, Knorr C, Kues W, Meyer H, Michl J, Moench-Tegeder G, Rehbock C, Taylor U, Washausen S. Sex selection of sperm in farm animals: status report and developmental prospects. Reproduction 2013; 145:R15-30. [DOI: 10.1530/rep-12-0151] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Pre-selection of spermatozoa based on the relative DNA difference between X- and Y-chromosome bearing populations by flow cytometry is an established method that has been introduced into commercial cattle production. Although several important improvements have increased the sort efficiency, the fertilising ability of sexed spermatozoa based on offspring per insemination is still behind farmers' expectations. The main stress factors, especially on mitochondria, that reduce the lifespan of spermatozoa are described, and new technical as well as biological solutions to maintain the natural sperm integrity and to increase the sorting efficiency are discussed. Among these methods are the identification of Y-chromosome bearing spermatozoa by bi-functionalised gold nanoparticles and triplex hybridisationin vivoas well as new laser-controlled deflection system that replaces the deflection of spermatozoa in the electrostatic field. Additionally, as well as a new nonsurgical transfer system of spermatozoa into the oviduct of cows has been developed and allows a significant reduction of spermatozoa per transfer. Altogether, the improvements made in the recent years will allow a broader use of sex-sorted spermatozoa even in those species that require more cells than cows and sheep.
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38
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Individual variation related to testicular biometry and semen characteristics in collared peccaries (Tayassu Tajacu Linnaeus, 1758). Anim Reprod Sci 2012; 134:191-6. [DOI: 10.1016/j.anireprosci.2012.08.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 07/16/2012] [Accepted: 08/18/2012] [Indexed: 11/17/2022]
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39
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Trigal B, Gómez E, Caamaño J, Muñoz M, Moreno J, Carrocera S, Martín D, Diez C. In vitro and in vivo quality of bovine embryos in vitro produced with sex-sorted sperm. Theriogenology 2012; 78:1465-75. [DOI: 10.1016/j.theriogenology.2012.06.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 06/07/2012] [Accepted: 06/10/2012] [Indexed: 10/28/2022]
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40
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Campanile G, Gasparrini B, Vecchio D, Neglia G, Senatore E, Bella A, Presicce G, Zicarelli L. Pregnancy rates following AI with sexed semen in Mediterranean Italian buffalo heifers (Bubalus bubalis). Theriogenology 2011; 76:500-6. [DOI: 10.1016/j.theriogenology.2011.02.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2010] [Revised: 01/16/2011] [Accepted: 02/26/2011] [Indexed: 11/29/2022]
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41
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Stewart B, Block J, Morelli P, Navarette A, Amstalden M, Bonilla L, Hansen P, Bilby T. Efficacy of embryo transfer in lactating dairy cows during summer using fresh or vitrified embryos produced in vitro with sex-sorted semen. J Dairy Sci 2011; 94:3437-45. [DOI: 10.3168/jds.2010-4008] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2010] [Accepted: 03/07/2011] [Indexed: 11/19/2022]
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42
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Lin T, Chen C, Sung L, Carter M, Chen Y, Du F, Ju J, Xu J. Open-pulled straw vitrification differentiates cryotolerance of in vitro cultured rabbit embryos at the eight-cell stage. Theriogenology 2011; 75:760-8. [DOI: 10.1016/j.theriogenology.2010.10.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Revised: 10/09/2010] [Accepted: 10/09/2010] [Indexed: 10/18/2022]
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43
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Sex-sorted bovine spermatozoa and DNA damage: I. Static features. Theriogenology 2011; 75:197-205. [DOI: 10.1016/j.theriogenology.2010.08.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Revised: 08/02/2010] [Accepted: 08/13/2010] [Indexed: 11/17/2022]
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44
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Pontes J, Silva K, Basso A, Rigo A, Ferreira C, Santos G, Sanches B, Porcionato J, Vieira P, Faifer F, Sterza F, Schenk J, Seneda M. Large-scale in vitro embryo production and pregnancy rates from Bos taurus, Bos indicus, and indicus-taurus dairy cows using sexed sperm. Theriogenology 2010; 74:1349-55. [DOI: 10.1016/j.theriogenology.2010.06.004] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2008] [Revised: 05/22/2010] [Accepted: 06/02/2010] [Indexed: 10/19/2022]
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45
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Barceló-Fimbres M, Campos-Chillón LF, Seidel GE. In vitro fertilization using non-sexed and sexed bovine sperm: sperm concentration, sorter pressure, and bull effects. Reprod Domest Anim 2010; 46:495-502. [PMID: 20946538 DOI: 10.1111/j.1439-0531.2010.01696.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The objective of these experiments was to study bovine in vitro fertilization (IVF) conditions for blastocyst production using non-sexed sperm (Experiment 1) and sexed sperm (Experiment 2). For Experiment 1, in vitro-matured oocytes (N=707) were allocated to a 2 × 3 × 4 factorial design: time of co-incubation of gametes for fertilization (4 and 18 h), sperm dose (1, 0.33, and 0.11 × 10(6) frozen-thawed sperm/ml, and sperm source (four bulls). Pronuclear status was evaluated for a subset. Experiment 2 (N=2155 oocytes) was a 2 × 3 × 2 × 6 factorial design: sex of sperm (X and Y), sperm dose (1, 0.33, and 0.11 × 10(6) frozen-thawed sperm/ml), and sperm-sorting pressures (40 and 50 psi), replicated with sperm of six bulls. Presumptive zygotes were cultured 60 h in chemically defined medium-1 (CDM-1), and for 114 h in CDM-2. For Experiment 1, pronuclear formation, cleavage and blastocysts rates were greater for 1, and 0.33 × 10(6) than 0.11 × 10(6) sperm/ml (72 and 62 vs 42%; 89 and 81 vs 58%; and 21 and 17 vs 9%, respectively; all p<0.01); polyspermy was greater for 1, than 0.33 and 0.11 × 10(6) sperm concentrations (24 vs 2 and 0%; p<0.01). There were greater main effects (p<0.01) of pronuclear formation (69 vs 48%), polyspermy (13 vs 4%), and cleavage (63 vs 54%), at 18 than at 4 h of co-incubation of gametes (all p<0.01). For Experiment 2, cleavage and blastocyst rates were greater for 1 × 10(6) sperm/ml vs 0.33 and 0.11 (69%, 47%, and 30% cleavage and 30%, 14%, and 8% blastocysts) and 40 vs 50 psi (54% and 44% cleavage and 18% and 15% blastocysts) (p<0.01). A marked bull by fertilization sperm dose interaction was found for cleavage (p<0.05). The main conclusion was that the optimal sperm concentration for cleavage and producing blastocysts via IVF with sexed sperm was considerably higher and more variable among bulls than for unsexed sperm.
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Affiliation(s)
- M Barceló-Fimbres
- Animal Reproduction and Biotechnology Laboratory, Colorado State University, Fort Collins, CO 80523-1683, USA
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46
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Presicce GA, Xu J, Gong G, Moreno JF, Chaubal S, Xue F, Bella A, Senatore EM, Yang X, Tian XC, Du F. Oocyte source and hormonal stimulation for in vitro fertilization using sexed spermatozoa in cattle. Vet Med Int 2010; 2011. [PMID: 20885928 PMCID: PMC2946594 DOI: 10.4061/2011/145626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 06/11/2010] [Accepted: 07/08/2010] [Indexed: 01/10/2023] Open
Abstract
The aim of this study was to investigate the efficiency of in vitro embryo production in cattle utilizing sexed sperm from two bulls and oocytes recovered by OPU. Twenty donor animals were employed in eight OPU replicates: the first four OPU trials were conducted on animals without hormone treatment, and the last four were run on the same animals, following FSH subcutaneous and intramuscular administration. A higher rate of blastocyst development was recorded in stimulated, as compared to nonstimulated animals, (25.2% versus 12.8%, P = .001). Ocytes derived from slaughterhouse (SH) ovaries were also fertilized with sperm from the same bulls. Overall, non-sexed sperm used with oocytes derived from SH ovaries was significantly more efficient for blastocyst development than was sexed sperm with these same SH derived oocytes and sexed sperm with stimulated donor oocytes (39.8% versus 25.0% and 25.2%, P = .001). In conclusion, the use of sexed sperm with OPU-derived oocytes resulted in a significantly higher blastocyst development when donors were hormonally stimulated; furthermore, the level of efficiency achieved was comparable to that attained when the same sexed sperm was tested on oocytes derived from SH ovaries.
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Affiliation(s)
- Giorgio A Presicce
- Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
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47
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Chebel RC, Guagnini FS, Santos JEP, Fetrow JP, Lima JR. Sex-sorted semen for dairy heifers: effects on reproductive and lactational performances. J Dairy Sci 2010; 93:2496-507. [PMID: 20494157 DOI: 10.3168/jds.2009-2858] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2009] [Accepted: 01/11/2010] [Indexed: 11/19/2022]
Abstract
The objectives of this study were to evaluate the effects of using sex-sorted semen for first AI of heifers on health and productivity during first lactation. Holstein heifers (herd A=227 and herd B=1,144) received first artificial insemination (AI) with sex-sorted semen (SX; n=343) or conventional semen (CS; n=1,028), and all heifers that displayed estrus after first AI were reinseminated with conventional semen up to 11 times before being culled. Age at first AI was 13.1+/-0.1 and 13.8+/-0.1 mo for SX and CS heifers, respectively, in herd A and 12.9+/-0.1 mo for both SX and CS heifers in herd B. Pregnancy per AI after first AI was greater for CS heifers than for SX heifers (51.8 vs. 40.2%). From heifers initially enrolled, 70.2% calved in herds A (n=188) or B (n=774) and first-lactation data were collected. Interval from first AI to calving was greater for SX heifers than for CS heifers (10.2+/-0.1 vs. 9.9+/-0.1 mo). Among heifers conceiving to first AI, SX heifers were more likely than CS heifers to deliver a female calf (85.7 vs. 47.7%), but because SX heifers were more likely to deliver a dead calf (8.8 vs. 3.4%), the difference in proportion of SX and CS heifers delivering a live female calf was smaller than expected (SX=79.1%; CS=47.2%). Rearing cost from first AI to calving was greater for SX heifers than for CS heifers ($775.3+/-6.7 vs. $750.0+/-5.9), but calf revenue tended to be greater for SX heifers ($142.0+/-7.2 vs. $126.7+/-6.4) and cost per female calf produced was smaller for SX heifers than for CS heifers ($-809.4+/-10.8 vs. $-1,249.7+/-10.9). Treatment did not affect calving difficulty, proportion of heifers needing assistance, and incidence of retained fetal membranes or metritis. Among heifers that conceived to first AI, however, SX heifers were more likely to be culled within 30 DIM (3.3 vs. 1.6%) and tended to be more likely to be culled within 60 DIM (5.5 vs. 3.4%) than CS heifers, but overall replacement cost was not different ($136.8+/-13.4). Total milk yield (9,245.5+/-84.7 kg) and income over feed cost ($554.7+/-5.1) were not different. Overall economic return was greater for SX heifers than CS heifers ($-83.7+/-36.7 vs. -175.3+/-33.4). Use of sex-sorted semen for first insemination of virgin heifers reduced the cost per female calf produced and increased the economic return during the first lactation.
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Affiliation(s)
- R C Chebel
- Department of Veterinary Population Medicine, University of Minnesota, Saint Paul 55108, USA.
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48
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The effect of sperm and cryoprotectant concentration on the freezing success of sex sorted ram sperm for in vitro fertilization. Theriogenology 2010; 74:786-94. [DOI: 10.1016/j.theriogenology.2010.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2010] [Revised: 04/05/2010] [Accepted: 04/05/2010] [Indexed: 11/20/2022]
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49
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Improved in vitro development of OPU-derived bovine (Bos taurus) embryos by group culture with agarose-embedded helper embryos. Theriogenology 2010; 74:1643-51. [PMID: 20708248 DOI: 10.1016/j.theriogenology.2010.06.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Revised: 06/29/2010] [Accepted: 06/29/2010] [Indexed: 11/23/2022]
Abstract
The average number of oocytes collected by ovum pick up (OPU) from Bos taurus cattle is <8 per live donor. The objective was to determine whether development of small numbers of cattle embryos (produced by OPU and IVF), was enhanced by including "helper" embryos, produced from abbatoir-derived oocytes and embedded in agarose. Oocytes were from abbatoir-derived ovaries (Experiments 1 and 2) or OPU of elite donors (Experiment 3). In Experiment 1, cleaved embryos (2-8 cells), were randomly allocated. Controls were groups of 1, 3, 5, 10, and 20 cleaved embryos cultured in 50 μL serum-free SOF, whereas treatments were groups of 1, 3, and 5 embryos freely cultured along with helpers in groups of either 9, 7 or 5 embedded in agarose per droplet. Therefore, there were 10 cleaved embryos per droplet in combinations of 1 + 9, 3 + 7 or 5 + 5 (free + helper), respectively. There was an increase in the progression to blastocyst for 1-5 embryos per droplet, compared to 10 and 20 (6.6-24.2% vs. 39.2-43.3%, P < 0.05). For the tested free embryos, those cultured with helpers had increased blastocyst development over their control counterparts (39.3-49.5% vs. 6.6-24.2%, P < 0.05). When the number of embryos per droplet was 10 or 20, blastocyst percentage was similar (39.2-49.5%, P > 0.05). In Experiment 2, addition of an agarose chip to the culture medium did not significantly affect development to the blastocyst stage. In Experiment 3, after fertilizing OPU oocytes with sorted X-sperm, a group of three cleaved embryos were cultured in a droplet with either seven helpers (3 + 7) or alone (3 + 0). Blastocyst development of OPU oocytes in the 3 + 7 group was 37.1%, higher than that in the 3 + 0 group (11.8%, P < 0.05). In conclusion, limited numbers of OPU/IVF oocytes had competent development when cultured with helpers (embedded in agarose to provide physical separation).
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50
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Hendricks KEM, Hansen PJ. Consequences for the bovine embryo of being derived from a spermatozoon subjected to oxidative stress. Aust Vet J 2010; 88:307-10. [DOI: 10.1111/j.1751-0813.2010.00585.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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