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Dos Santos RP, Silva AR. Sperm Cooling as an Assisted Reproduction Tool for Wildlife: An Underrated Technology. Biopreserv Biobank 2023; 21:388-396. [PMID: 35856795 DOI: 10.1089/bio.2022.0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The search for assisted reproduction techniques applied to the conservation and even the genetic improvement of wild species is becoming increasingly common. Regarding conservation of male gametes from wild animals, although current advances are focused on cryopreservation, the development of protocols for sperm refrigeration seems to be underrated, despite its various advantages and applications. Therefore, this review aims to highlight the importance of short-term conservation of sperm from wild mammals, report the development of state-of-the-art refrigeration protocols for both ejaculated and epididymal sperm, and evaluate the challenges and prospects of their application.
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Affiliation(s)
- Romário Parente Dos Santos
- Laboratory for Animal Germplasm Conservation, Department of Animal Sciences, Federal University of the Semiarid Region, Mossoró, Brazil
| | - Alexandre Rodrigues Silva
- Laboratory for Animal Germplasm Conservation, Department of Animal Sciences, Federal University of the Semiarid Region, Mossoró, Brazil
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2
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Acevedo C, Barfield JP. Review: Reproductive physiology of bison and application of assisted reproductive technologies to their conservation. Animal 2023; 17 Suppl 1:100842. [PMID: 37567664 DOI: 10.1016/j.animal.2023.100842] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/22/2023] [Accepted: 04/25/2023] [Indexed: 08/13/2023] Open
Abstract
Bison are an ecologically and culturally important species on the European and North American continents. Their near extirpation was met with conservation efforts that prevented their extinction but left few animals or highly fragmented populations. Contemporary conservation efforts are focused on building ecologically and genetically sustainable bison herds for long-term conservation of the species. Assisted reproductive technologies (ARTs) can play a key role in building these herds by facilitating the movement of genetics in the form of gametes and embryos, while protecting animal well-being and ensuring biosecurity of existing bison herds. In addition, ARTs such as gamete and embryo cryopreservation can be used to protect against future losses of genetic diversity through biobanking. In this review, a brief summary of basic bison reproductive physiology is presented followed by an overview of the current state of ART in Bison bison (American bison) and Bison bonasus (European bison or wisent). Research on ART ranging from artificial insemination to in vitro embryo transfer and cloning is discussed with particular regard to the application of ART for conservation purposes. While significant progress has been made in ART for bison, there are still many opportunities to improve these technologies and expand their impact for bison conservation.
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Affiliation(s)
- Carolina Acevedo
- Animal Reproduction and Biotechnology Laboratory, Colorado State University, Fort Collins, CO 80521, USA
| | - Jennifer P Barfield
- Animal Reproduction and Biotechnology Laboratory, Colorado State University, Fort Collins, CO 80521, USA.
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Zwiefelhofer ML, Shury T, Zwiefelhofer EM, Singh J, Mastromonaco GF, Adams GP. Strategies for oocyte collection and in vitro embryo production in free-roaming bison herds. CONSERVATION PHYSIOLOGY 2022; 10:coac058. [PMID: 35966755 PMCID: PMC9368820 DOI: 10.1093/conphys/coac058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/19/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
The study was conducted to test the feasibility of protocols for field collection of cumulus-oocyte complexes (COC) for in vitro embryo production (IVP) in wild bison. The study was done with captive wood bison during the anovulatory season. In Experiment 1, the efficiency of transvaginal ultrasound-guided COC collection was compared between bison restrained in a squeeze chute without sedation vs in lateral recumbency after chemical immobilization using a dart gun (n = 8/group). In Experiment 2, a 2 × 2 design was used to examine the effects of superstimulation treatment [single dose of equine chorionic gonodotrophin (eCG) vs multiple doses of follicle stimulating hormone (FSH)] and method of drug administration (manual injection vs field darting) on COC collection and IVP. In Experiment 1, no difference was detected between chute-restrained vs chemically immobilized groups in the time required to complete COC collections, the number of follicles aspirated (11.5 ± 1.9 vs 9.3 ± 1.8; P = 0.4) or the COC recovery rate [COC recovered/follicle aspirated; 58/92 (63%) vs 44/69 (64%); P = 0.9]. In Experiment 2, no differences were detected between superstimulation treatments (eCG vs FSH). The total number of follicles available for aspiration did not differ between manual injection and field darting (23.9 ± 2.7 vs 21.6 ± 1.9; P = 0.4). Compared with the random start unstimulated group, the embryo production rate was higher [18/132 (14%) vs 53/189 (28%); P = 0.04] after wave synchronization and superstimulation. Results suggest that COC collection is equally feasible in a recumbent position after chemical immobilization as those bison restrained in a standing position in a hydraulic chute. Ovarian superstimulation with a single-dose eCG protocol is as effective as a multiple-dose FSH protocol, and field darting is as effective as chute-side administration of superstimulation treatments. The strategies in the present study are ready to be incorporated into field collections in free-roaming bison herds.
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Affiliation(s)
- Miranda L Zwiefelhofer
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan, S7N 5B4, Canada
| | - Todd Shury
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan, S7N 5B4, Canada
- Parks Canada Agency, Government of Canada, 52 Campus Drive, Saskatoon, Saskatchewan, S7N 5B4, Canada
| | - Eric M Zwiefelhofer
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan, S7N 5B4, Canada
| | - Jaswant Singh
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan, S7N 5B4, Canada
| | - Gabriela F Mastromonaco
- Department of Reproductive Sciences, Toronto Zoo, 361A Old Finch Avenue, Toronto, Ontario, M1B 5K7, Canada
| | - Gregg P Adams
- Corresponding author: Veterinary Biomedical Sciences, 52 Campus Drive, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5B4, Canada. Primary: 306-966-7411; Fax: 306-966-7376.
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Duszewska AM, Baraniewicz-Kołek M, Wojdan J, Barłowska K, Bielecki W, Gręda P, Niżański W, Olech W. Establishment of a Wisent (Bison bonasus) Germplasm Bank. Animals (Basel) 2022; 12:ani12101239. [PMID: 35625085 PMCID: PMC9137628 DOI: 10.3390/ani12101239] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 02/05/2023] Open
Abstract
Simple Summary The wisent (European bison) is a protected species. For this reason, we undertook the use of biotechnologies—such as in vitro maturation of oocytes, in vitro fertilization of matured oocytes, in vitro culture of embryos, and embryo vitrification—to establish a wisent embryo bank. The competencies of the vitrified embryos were tested by transferring the warming embryos to cattle (interspecies embryo transfer). The pregnancy was confirmed biochemically and using USG, and although the fetuses were resorbed, the embryos’ competence for development was demonstrated. The results of these studies open the way for the cryoconservation of wisent germplasm. Abstract The wisent, or European bison (Bison bonasus), belongs to the same family (Bovidae) as the American bison and domestic cattle. The wisent is the largest mammal in Europe, and is called the “Forest Emperor”. The wisent is listed as “Vulnerable” on the IUCN Red List, and is protected by international law. Achievements in reproductive biotechnology have opened new possibilities for the cryoconservation of the wisent germplasm. Therefore, this research aimed to improve a strategy for the protection and preservation of the European bison through the creation of a wisent germplasm bank, based on the following procedures: isolation and in vitro maturation (IVM) of oocytes, in vitro fertilization (IVF) of matured oocytes, in vitro embryo culture (IVC), and embryo cryopreservation. Wisent ovaries were isolated from females outside the reproductive season, and eliminated from breeding for reasons other than infertility. Cumulus–oocyte complexes (COCs) were isolated from follicles greater than 2 mm in diameter and matured for 24 h and 30 h. After IVM, COCs were fertilized in vitro with wisent sperm. The obtained wisent zygotes, based on oocytes matured for 24 h and 30 h, were cultured for 216 h. Embryos at the morula and early blastocyst stages were vitrified and then warmed and transferred to interspecies recipients (Bos taurus). USG and biochemical tests were used to monitor pregnancies. This study obtained embryos in the morula and early blastocyst stages only after oocytes were fertilized and matured for 30 h. On average, per oocyte donor, 12.33 ± 0.5 COCs were isolated, and only 9.33 ± 0.61 COCs were qualified for in vitro maturation (75.68%), while 9.16 ± 0.48 COCs were matured (84.32%). On average, per donor, 5.5 ± 0.34 embryos were cleaved (59.96%) after 48 h post-fertilization (hpf), and 3.33 ± 0.21 achieved the eight-cell stage (36.52%) after 96 hpf, while 1 ± 0.21 morula and early blastocyst stages (10.71%) were achieved after 216 hpf. A total of six embryos (one morula and five early blastocysts) were obtained and vitrified; after warming, five of them were interspecies transferred to cattle (Bos taurus). On day 41 after fertilization, 3 out of 5 pregnancies were detected based on USG, P4, and PAG tests. However, no pregnancy was observed on day 86 after fertilization, indicating embryo resorption. This study shows that obtaining wisent embryos in vitro, and subsequent cryopreservation to create a wisent embryo bank, can be applied and implemented for the wisent protection program.
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Affiliation(s)
- Anna Maria Duszewska
- Department of Morphological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland; (M.B.-K.); (P.G.)
- Correspondence:
| | - Magdalena Baraniewicz-Kołek
- Department of Morphological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland; (M.B.-K.); (P.G.)
| | - Jarosław Wojdan
- Department of Biotechnology and Nutrigenomics, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, ul. Postępu 36A, Jastrzębiec, 05-552 Magdalenka, Poland; (J.W.); (K.B.)
| | - Katarzyna Barłowska
- Department of Biotechnology and Nutrigenomics, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, ul. Postępu 36A, Jastrzębiec, 05-552 Magdalenka, Poland; (J.W.); (K.B.)
| | - Wojciech Bielecki
- Department of Pathology and Veterinary Diagnostics, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland;
| | - Paweł Gręda
- Department of Morphological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland; (M.B.-K.); (P.G.)
| | - Wojciech Niżański
- Department of Reproduction and Clinic of Farm Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-366 Wroclaw, Poland;
| | - Wanda Olech
- Department of Genetics and Animal Breeding, Faculty of Animal Science, Warsaw University of Life Sciences, 02-776 Warsaw, Poland;
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Benham HM, McCollum MP, Nol P, Frey RK, Clarke PR, Rhyan JC, Barfield JP. Production of embryos and a live offspring using post mortem reproductive material from bison (Bison bison bison) originating in Yellowstone National Park, USA. Theriogenology 2020; 160:33-39. [PMID: 33171350 DOI: 10.1016/j.theriogenology.2020.10.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 11/24/2022]
Abstract
Bison from Yellowstone National Park (YNP) have an important genetic history. As one of the few wild herds of bison with no evidence of cattle DNA introgression and a large enough population to maintain genetic diversity, they are considered a conservation priority for the species. Unfortunately, there is a high prevalence of the zoonotic disease brucellosis in the herd. Part of the management strategy for controlling the disease and herd size in YNP is to remove bison from the population during the winter migration out of the park. This interagency management cull provides an opportunity to collect a large number of oocytes from a wild bison population for genetic banking and research purposes. During the winters of 2014-2018, which is the nonbreeding season for bison, oocytes were collected post mortem and used to determine the effects of donor reproductive maturity and pregnancy status on oocyte quality and in vitro fertilization (IVF) outcomes, and to demonstrate the feasibility of producing healthy offspring. Cumulus oocyte complexes (COCs) were placed into an in vitro embryo production (IVP) system, and on days 7, 7.5, and 8 of in vitro culture (Day 0 = day of in vitro fertilization) embryos were assessed for developmental stage and quality prior to vitrification. Embryos were then stored in liquid nitrogen until the breeding season when a subset were warmed, cultured for 6 h, evaluated for survival, and transferred to healthy bison recipients. There were no significant differences in the ability of recovered COCs to support blastocyst development based on female reproductive maturity or pregnancy status (juvenile 79/959 (8.2%) vs sexually mature 547/6544 (8.4%); non-pregnant 188/2302 (8.2%) vs pregnant 556/6122 (9.1%)). Following the transfer of 15 embryos to 10 recipients, one healthy female calf was born. This work demonstrates that live offspring can be generated from COCs collected from YNP bison post mortem in the non-breeding season, and that gamete recovery can be a valuable tool for conservation of valuable genetics for this species while mitigating diseases like brucellosis.
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Affiliation(s)
- Hayley M Benham
- Colorado State University, Department of Biomedical Science, 1683 Campus Delivery, Fort Collins, CO, 80523, USA
| | - Matthew P McCollum
- United States Department of Agriculture, Animal and Plant Health Inspection Service (APHIS), Veterinary Services (VS), National Wildlife Research Center, 4101 Laporte Avenue, Fort Collins, CO, 80521, USA
| | - Pauline Nol
- United States Department of Agriculture, Animal and Plant Health Inspection Service (APHIS), Veterinary Services (VS), National Wildlife Research Center, 4101 Laporte Avenue, Fort Collins, CO, 80521, USA
| | - Rebecca K Frey
- United States Department of Agriculture (USDA), Animal and Plant Health Inspection Service (APHIS), Veterinary Services (VS), Montana, USA
| | - P Ryan Clarke
- United States Department of Agriculture (USDA), Animal and Plant Health Inspection Service (APHIS), Veterinary Services (VS), Montana, USA
| | - Jack C Rhyan
- United States Department of Agriculture, Animal and Plant Health Inspection Service (APHIS), Veterinary Services (VS), National Wildlife Research Center, 4101 Laporte Avenue, Fort Collins, CO, 80521, USA
| | - Jennifer P Barfield
- Colorado State University, Department of Biomedical Science, 1683 Campus Delivery, Fort Collins, CO, 80523, USA.
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Palomino JM, Mastromonaco GF, Cervantes MP, Mapletoft RJ, Anzar M, Adams GP. Effect of season and superstimulatory treatment on in vivo and in vitro embryo production in wood bison (Bison bison athabascae). Reprod Domest Anim 2019; 55:54-63. [PMID: 31661568 DOI: 10.1111/rda.13580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 10/23/2019] [Indexed: 11/30/2022]
Abstract
Two experiments were done using a two-by-two design to determine the effects of season and superstimulatory protocol on embryo production in wood bison. In Experiment 1 (in vivo-derived embryos), ovarian superstimulation was induced in female bison during the ovulatory and anovulatory seasons with either two or three doses of FSH given every-other-day (FSH × 2 vs. FSH × 3, respectively). Bison were given hCG to induce ovulation, inseminated 12 and 24 hr after hCG, and embryos were collected 8 days after hCG (n = 10 bison/group). In Experiment 2 (in vitro embryo production), ovarian superstimulation was induced in female bison during the ovulatory and anovulatory seasons with two doses of FSH, and in vivo maturation of the cumulus-oocyte complexes (COC) was induced with hCG at either 48 or 72 hr after the last dose of FSH. COC were collected 34 hr after hCG, and expanded COC were used for in vitro fertilization and culture. In Experiment 1, the number of follicles ≥9 mm, the proportion of follicles that ovulated, the number of CL, and the total number of ova/embryos collected did not differ between seasons or treatment groups, but the number of transferable embryos was greater (p < .05) in the ovulatory season. In Experiment 2, no differences were detected between seasons or treatment groups for any end point. The number of transferable embryos produced per bison was greatest (p < .05) using in vitro fertilization and was unaffected by season (1.5 ± 0.2 and 1.1 ± 0.3 during anovulatory and ovulatory seasons, respectively), in contrast to in vivo embryo production which was affected by season (0.1 ± 0.01 and 0.7 ± 0.2 during anovulatory and ovulatory seasons, respectively). Results demonstrate that transferable embryos can be produced throughout the year in wood bison by both in vivo and in vitro techniques, but the efficiency of embryo production of in vivo-derived embryos is significantly lower during the anovulatory season.
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Affiliation(s)
- Jesus Manuel Palomino
- Department of Biomedical Sciences, University of Guelph, Guelph, ON, Canada.,Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Gabriela F Mastromonaco
- Department of Biomedical Sciences, University of Guelph, Guelph, ON, Canada.,Reproductive Physiology, Toronto Zoo, Toronto, ON, Canada
| | - Miriam P Cervantes
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Reuben J Mapletoft
- Department of Large Animal Clinical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Muhammad Anzar
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Gregg P Adams
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK, Canada
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7
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In Vitro Production of Bison Embryos. Methods Mol Biol 2019. [PMID: 31230280 DOI: 10.1007/978-1-4939-9566-0_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023]
Abstract
Bison are an iconic species of cultural, conservation, and commercial interest. Various assisted reproductive technologies have been tested in bison over the last few decades (e.g., superovulation and embryo transfer), but their efficiencies are low. Since 2007, several methods for producing bison embryos in vitro have been published. All of these methods are based on cattle embryo production models and have varying degrees of success with regard to embryo production rates. In this chapter, a brief summary of these reports is presented followed by a detailed protocol that has been successfully used to produce bison embryos in vitro and live offspring following embryo transfer.
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8
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Duszewska AM, Gręda P, Baraniewicz M, Bielecki W, Niżański W, Partyka A, Tracz M, Nowak Z, Chełmońska-Soyta A, Olech W. Obtaining Wisent early blastocyst in vitro is a basic for protection and creation of biodiversity for this threatened species. Reprod Domest Anim 2018. [PMID: 29542185 DOI: 10.1111/rda.13168] [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] [Indexed: 01/25/2023]
Abstract
Wisent, or European bison (Bison bonasus), is listed as "vulnerable" on the IUCN Red List of Threatened Species and is therefore protected by international law. For the first time, a Wisent embryo has been obtained in vitro. This procedure creates a new opportunity to protect and increase Wisent reproductive potential and thereby opens new possibilities for the establishment of a controlled and broad reserve of the gene pool.
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Affiliation(s)
- A M Duszewska
- Faculty of Veterinary Medicine, Department of Morphological Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - P Gręda
- Faculty of Veterinary Medicine, Department of Morphological Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - M Baraniewicz
- Faculty of Veterinary Medicine, Department of Morphological Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - W Bielecki
- Faculty of Veterinary Medicine, Department of Pathology and Veterinary Diagnostics, Warsaw University of Life Sciences, Warsaw, Poland
| | - W Niżański
- Faculty of Veterinary Medicine, Department of Reproduction and Clinic of Farm Animals, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - A Partyka
- Faculty of Veterinary Medicine, Department of Reproduction and Clinic of Farm Animals, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - M Tracz
- Faculty of Veterinary Medicine, Department of Food Hygiene and Public Health Protection, Warsaw University of Life Sciences, Warsaw, Poland
| | - Z Nowak
- Faculty of Animal Science, Department of Genetics and Animal Breeding, Warsaw University of Life Sciences, Warsaw, Poland
| | - A Chełmońska-Soyta
- Faculty of Veterinary Medicine, Department of Immunology, Pathophysiology and Prevention Veterinary, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland
| | - W Olech
- Faculty of Animal Science, Department of Genetics and Animal Breeding, Warsaw University of Life Sciences, Warsaw, Poland
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Cervantes MP, Palomino JM, Anzar M, Mapletoft RJ, Mastromonaco GF, Adams GP. In vitro embryo production in wood bison (Bison bison athabascae) using in vivo matured cumulus-oocyte complexes. Theriogenology 2017; 89:122-130. [DOI: 10.1016/j.theriogenology.2016.10.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 10/14/2016] [Accepted: 10/16/2016] [Indexed: 11/30/2022]
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10
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Cervantes MP, Palomino JM, Anzar M, Mapletoft RJ, Mastromonaco GF, Adams GP. In vitro-production of embryos using immature oocytes collected transvaginally from superstimulated wood bison (Bison bison athabascae). Theriogenology 2017; 92:103-110. [PMID: 28237324 DOI: 10.1016/j.theriogenology.2017.01.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/07/2017] [Accepted: 01/07/2017] [Indexed: 11/28/2022]
Abstract
Two experiments were done to test the hypothesis that morphologic characteristics of wood bison cumulus-oocyte complexes (COC) are reflective of the ability of the oocyte to develop to an advanced embryonic stage after in vitro maturation, fertilization and culture, and to determine the effect of prolonging the interval from the end of superstimulation treatment to oocyte collection (FSH starvation period). Experiments were done during the anovulatory season. In Experiment 1, ovarian superstimulation was induced in 10 bison with two doses of FSH given at 48 h intervals beginning at the time of follicular wave emergence. COC were collected 3 days (72 h) after the last dose of FSH by follicular aspiration and classified as compact, expanded or denuded. The COC were matured in vitro for 24 h before fertilization in vitro (Day 0). Embryo development was assessed on Days 3, 7 and 8. The blastocyst rate was 7/34, 2/10 and 0/3 in COC classified as compact, expanded and denuded, respectively; however, only compact COC resulted in embryos that reached the expanded blastocyst stage. In Experiment 2, COC were collected at either 3 or 4 days (72 or 96 h) after the last dose of FSH (n = 16 bison/group) to determine the effect of the duration of FSH starvation on oocyte competence. The COC were classified as compact good (>3 layers of cumulus cells), compact regular (1-3 layers of cumulus cells), expanded or denuded, and then matured, fertilized and cultured in vitro. Although follicles were larger (P < 0.05) in the 4-day FSH starvation group, there was no effect of starvation period on the distribution of COC morphology; overall, 112/194 (57.7%) were compact, 29/194 (26.3%) were expanded, 39/194 (20.1%) were denuded, and 14/194 (7.2%) were degenerated (P < 0.05). Similarly, there was no effect of starvation period on embryo development. Compact good COC had the highest cleavage (88%) and blastocyst rates (54%; P < 0.05), followed by compact regular COC at 73% and 25%, respectively. Expanded and denuded COC had low cleavage (40% vs. 59%, respectively) and blastocyst rates (5% vs. 8%, respectively). We conclude that morphologic characteristics of wood bison COC are reflective of the ability of the oocyte to develop into an embryo in vitro. Importantly, oocytes collected from superstimulated bison during the anovulatory season were competent to develop to the blastocyst stage following in vitro maturation, fertilization and culture.
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Affiliation(s)
- Miriam P Cervantes
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Canada
| | - J Manuel Palomino
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Canada
| | - Muhammad Anzar
- Agriculture and Agri-Food Canada, Saskatoon Research and Development Center, Saskatoon, Canada
| | - Reuben J Mapletoft
- Department of Large Animal Clinical Sciences, University of Saskatchewan, Saskatoon, Canada
| | | | - Gregg P Adams
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Canada.
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Cervantes MP, Palomino JM, Anzar M, Mapletoft RJ, Adams GP. In vivo and in vitro maturation of oocytes collected from superstimulated wood bison (Bison bison athabascae) during the anovulatory and ovulatory seasons. Anim Reprod Sci 2016; 173:87-96. [PMID: 27601321 DOI: 10.1016/j.anireprosci.2016.09.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 08/29/2016] [Accepted: 09/01/2016] [Indexed: 01/21/2023]
Abstract
Experiments were done to compare the in vivo and in vitro maturational characteristics of cumulus-oocyte complexes (COC) collected from live wood bison. In Experiment 1 (anovulatory season), follicular ablation was done to synchronize follicle wave emergence among bison on Day -1, and FSH was given on Days 0 and 2. Bison were then assigned to 5 groups (n=5/group) in which COC were collected by transvaginal follicle aspiration on Day 4 and either fixed immediately with no maturation (control), matured in vitro for 24 or 30h, or collected on Day 5 after in vivo maturation for 24 or 30h (i.e., after hCG treatment). In Experiment 2 (ovulatory season), bison were treated as described for Experiment 1, but PGF2α (cloprostenol) was given to control the luteal phase on Days -9 and 3. In both experiments, cumulus cell expansion was more extensive following in vivo than in vitro maturation, and the percentage of fully expanded COC was highest in the in vivo 30h groups. Nuclear maturation occurred more rapidly in vitro; 60-70% of oocytes were at the MII stage 24h after in vitro maturation while only 25-27% of oocytes had reached the MII stage after 24h of in vivo maturation. In conclusion, nuclear maturation occurred more rapidly during in vitro vs. in vivo maturation, but was associated with less cumulus expansion than in vivo maturation. In vivo oocyte maturation was more complete at 30 vs. 24h after hCG treatment. Season had no effect on the maturational capacity of wood bison oocytes.
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Affiliation(s)
- Miriam P Cervantes
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Canada
| | - J Manuel Palomino
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Canada
| | - Muhammad Anzar
- Agriculture and Agri-Food Canada, Saskatoon Research and Development Center, Saskatoon, Canada
| | - Reuben J Mapletoft
- Department of Large Animal Clinical Sciences, University of Saskatchewan, Saskatoon, Canada
| | - Gregg P Adams
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Canada.
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TUBERCULOSIS AND BRUCELLOSIS IN WOOD BISON (BISON BISON ATHABASCAE) IN NORTHERN CANADA: A RENEWED NEED TO DEVELOP OPTIONS FOR FUTURE MANAGEMENT. J Wildl Dis 2015; 51:543-54. [DOI: 10.7589/2014-06-167] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Krishnakumar S, Whiteside DP, Elkin B, Thundathil JC. Effect of Reproductive Seasonality on Gamete Quality in the North American Bison (Bison bison bison
). Reprod Domest Anim 2014; 50:206-213. [DOI: 10.1111/rda.12471] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 11/25/2014] [Indexed: 11/30/2022]
Affiliation(s)
- S Krishnakumar
- Department of Production Animal Health; Faculty of Veterinary Medicine; University of Calgary; Calgary AB Canada
| | - DP Whiteside
- Department of Ecosystem and Public Health; Faculty of Veterinary Medicine; University of Calgary; Calgary AB Canada
- Animal Health Centre; Calgary Zoo; Calgary AB Canada
| | - B Elkin
- Department of Ecosystem and Public Health; Faculty of Veterinary Medicine; University of Calgary; Calgary AB Canada
- Wildlife Division; Department of Environment and Natural Resources; Government of Northwest Territories; Yellowknife NT Canada
| | - JC Thundathil
- Department of Production Animal Health; Faculty of Veterinary Medicine; University of Calgary; Calgary AB Canada
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Superovulation and embryo transfer in wood bison (Bison bison athabascae). Theriogenology 2013; 80:542-51. [DOI: 10.1016/j.theriogenology.2013.05.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 05/17/2013] [Accepted: 05/22/2013] [Indexed: 11/18/2022]
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Palomino JM, McCorkell RB, Woodbury MR, Cervantes MP, Adams GP. Superstimulatory response and oocyte collection in North American bison during the non-breeding season. Anim Reprod Sci 2013; 140:147-52. [DOI: 10.1016/j.anireprosci.2013.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 06/03/2013] [Accepted: 06/12/2013] [Indexed: 11/26/2022]
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Seaby RP, Alexander B, King WA, Mastromonaco GF. In vitro development of bison embryos using interspecies somatic cell nuclear transfer. Reprod Domest Anim 2013; 48:881-7. [PMID: 23692072 DOI: 10.1111/rda.12180] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 04/12/2013] [Indexed: 10/26/2022]
Abstract
Interspecies somatic cell nuclear transfer (interspecies SCNT) has been explored in many domestic and non-domestic animal species. However, problems arise during the development of these embryos, which may be related to species-specific differences in nuclear-cytoplasmic communication. The objectives of this study were to investigate the possibility of producing bison embryos in vitro using interspecies SCNT and assess the developmental potential of these embryos. Treatment groups consisted of cattle in vitro fertilization (IVF) and cattle SCNT as controls and wood bison SCNT, plains bison SCNT and wisent SCNT as experimental groups. Cleavage and blastocyst rates were assessed, and blastocyst quality was determined using total cell number, apoptotic incidence and relative quantification of mitochondria-related genes NRF1, MT-CYB and TFAM. These results indicate that embryos can be produced by interspecies SCNT in all bison species/subspecies (13.34-33.54% blastocyst rates). Although increased incidence of apoptosis was observed in bison SCNT blastocysts compared to cattle SCNT controls (10.45-12.69 vs 8.76, respectively) that corresponded with significantly lower cell numbers (80-87 cells vs >100 cells, respectively), no major differences were observed in the expression of NRF1, MT-CYB and TFAM. This study is the first to report the production of bison embryos by interspecies SCNT. Blastocyst development in all three bison species/subspecies was greater than the rates obtained in previous studies by IVF, which supports the potential role of SCNT for in vitro embryo production in this species. Yet, further investigation of developmental competence and the factors influencing blastocyst quality and viability is required.
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Affiliation(s)
- R P Seaby
- Biomedical Sciences, University of Guelph, Guelph, ON, Canada
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Seaby RP, Mackie P, King WA, Mastromonaco GF. Investigation into developmental potential and nuclear/mitochondrial function in early wood and plains bison hybrid embryos. Reprod Domest Anim 2011; 47:644-54. [PMID: 22050383 DOI: 10.1111/j.1439-0531.2011.01936.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Studies to date have shown that bison embryo development in vitro is compromised with few embryos developing to the blastocyst stage. The aim of this study was to use bison-cattle hybrid embryos, an interspecific cross that is known to result in live offspring in vivo, as a model for assessing species-specific differences in embryo development in vitro. Cattle oocytes fertilized with cattle, plains bison and wood bison sperm were assessed for various developmental parameters associated with embryo quality, including cell number, apoptosis and ATP content. Decreased development to the blastocyst stage was observed in hybrid wood bison embryos compared with the other treatment groups. Although both wood bison and plains bison hybrid blastocysts had significantly lower cell numbers than cattle blastocysts, only wood bison hybrid blastocysts had a greater incidence of apoptosis than cattle blastocysts. Among the treatment groups, ATP levels and expression profiles of NRF1, TFAM, MT-CYB, BAX and BCL2 were not significantly different in both 8- to 16-cell stage and blastocyst stage embryos. These data provide evidence of decreased developmental competence in the wood bison hybrid embryos, owing to inadequate culture conditions that have increased apoptotic events.
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Affiliation(s)
- R P Seaby
- Department of Biomedical Sciences, University of Guelph, Guelph, Ontario N1G 2W1, Canada
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Pegge RB, Krishnakumar S, Whiteside D, Elkin B, Parlevliet JM, Thundathil JC. Sperm characteristics in plains (Bison bison bison) versus wood (Bison bison athabascae) bison. Theriogenology 2011; 75:1360-70. [DOI: 10.1016/j.theriogenology.2010.11.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2010] [Revised: 11/20/2010] [Accepted: 11/30/2010] [Indexed: 12/30/2022]
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NEWTON LARISSAD, KRISHNAKUMAR SULOCHANA, MENON AJITKUMARGOPINADHA, KASTELIC JOHNP, VAN DER HOORN FRANSA, THUNDATHIL JACOBC. Na+/K+ATPase regulates sperm capacitation through a mechanism involving kinases and redistribution of its testis-specific isoform. Mol Reprod Dev 2010; 77:136-48. [PMID: 19834983 PMCID: PMC5059152 DOI: 10.1002/mrd.21114] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Incubation of bovine sperm with ouabain, an endogenous cardiac glycoside that inhibits both the ubiquitous (ATP1A1) and testis-specific alpha4 (ATP1A4) isoforms of Na(+)/K(+)ATPase, induces tyrosine phosphorylation and capacitation. The objectives of this study were to investigate: (1) fertilizing ability of bovine sperm capacitated by incubating with ouabain; (2) involvement of ATP1A4 in this process; and (3) signaling mechanisms involved in the regulation of sperm capacitation induced by inhibition of Na(+)/K(+)ATPase activity. Fresh sperm capacitated by incubating with ouabain (inhibits both ATP1A1 and ATP1A4) or with anti-ATP1A4 immunoserum fertilized bovine oocytes in vitro. Capacitation was associated with relocalization of ATP1A4 from the entire sperm head to the post-acrosomal region. To investigate signaling mechanisms involved in oubain-induced regulation of sperm capacitation, sperm preparations were pre-incubated with inhibitors of specific signaling molecules, followed by incubation with ouabain. The phosphotyrosine content of sperm preparations was determined by immunoblotting, and capacitation status of these sperm preparations were evaluated through an acrosome reaction assay. We inferred that Na(+)/K(+)ATPase was involved in the regulation of tyrosine phosphorylation in sperm proteins through receptor tyrosine kinase, nonreceptor type protein kinase, and protein kinases A and C. In conclusion, inhibition of Na(+)/K(+)ATPase induced tyrosine phosphorylation and capacitation through multiple signal transduction pathways, imparting fertilizing ability in bovine sperm. To our knowledge, this is the first report documenting both the involvement of ATP1A4 in the regulation of bovine sperm capacitation and that fresh bovine sperm capacitated by the inhibition of Na(+)/K(+)ATPase can fertilize oocytes in vitro.
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Affiliation(s)
- LARISSA D. NEWTON
- Faculty of Veterinary Medicine, Department of Production Animal Health, University of Calgary, Calgary, AB, Canada
| | - SULOCHANA KRISHNAKUMAR
- Faculty of Veterinary Medicine, Department of Production Animal Health, University of Calgary, Calgary, AB, Canada
| | - AJITKUMAR GOPINADHA MENON
- Faculty of Veterinary Medicine, Department of Production Animal Health, University of Calgary, Calgary, AB, Canada
| | - JOHN P. KASTELIC
- Faculty of Veterinary Medicine, Department of Production Animal Health, University of Calgary, Calgary, AB, Canada
- Lethbridge Research Centre, Agriculture and Agri-Food Canada, Lethbridge, AB, Canada
| | - FRANS A. VAN DER HOORN
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB, Canada
| | - JACOB C. THUNDATHIL
- Faculty of Veterinary Medicine, Department of Production Animal Health, University of Calgary, Calgary, AB, Canada
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SAMBASIVA RAO B, UMA MAHESH Y, LAKSHMIKANTAN UR, SUMAN K, VENU CHARAN K, SHIVAJI S. Developmental Competence of Oocytes Recovered from Postmortem Ovaries of the Endangered Indian Blackbuck (Antilope cervicapra). J Reprod Dev 2010; 56:623-9. [DOI: 10.1262/jrd.10-059h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Brahmasani SAMBASIVA RAO
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Yelisetti UMA MAHESH
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Uthanda Raman LAKSHMIKANTAN
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Komjeti SUMAN
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Katari VENU CHARAN
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Sisinthy SHIVAJI
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
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Aurini LC, Whiteside DP, Elkin BT, Thundathil JC. Recovery and Cryopreservation of Epididymal Sperm of Plains Bison (Bison bison bison) as a Model for Salvaging the Genetics of Wood Bison (Bison bison athabascae). Reprod Domest Anim 2009; 44:815-22. [DOI: 10.1111/j.1439-0531.2008.01087.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Lessard C, Danielson J, Rajapaksha K, Adams G, McCorkell R. Banking North American buffalo semen. Theriogenology 2009; 71:1112-9. [DOI: 10.1016/j.theriogenology.2008.12.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Revised: 11/18/2008] [Accepted: 12/06/2008] [Indexed: 11/30/2022]
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Wirtu G, Pope CE, Paccamonti DL, Godke RA, Dresser BL. Ultrasonographic-guided retrieval and in vitro maturation of eland (Taurotragus oryx) and bongo (Tragelaphus eurycerus isaaci) antelope oocytes. Anim Reprod Sci 2009; 111:160-72. [DOI: 10.1016/j.anireprosci.2008.02.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2007] [Revised: 01/24/2008] [Accepted: 02/20/2008] [Indexed: 10/25/2022]
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