1
|
Cardenas-Padilla AJ, Jimenez-Trejo F, Cerbon M, Chavez-Garcia A, Cruz-Cano NB, Martinez-Torres M, Alcantar-Rodriguez A, Medrano A. Sperm melatonin receptors, seminal plasma melatonin and semen freezability in goats. Theriogenology 2024; 225:98-106. [PMID: 38801791 DOI: 10.1016/j.theriogenology.2024.05.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Goat bucks are seasonal breeders that show variation in sperm quality, endogenous melatonin (MLT), and presumably in the expression of MLT receptors on the sperm throughout the year, which may modify sperm freezability. The aim of this study was to determine whether sperm freezability is associated with (i) endogenous melatonin levels in seminal plasma and (ii) the expression of sperm plasma membrane melatonin receptors (MT1, MT2). To evaluate this, spermatozoa from seven Saanen goat bucks were cryopreserved throughout the year in Mexico using a standard freezing protocol. Seminal plasma MLT concentrations were determined by ELISA and the expression and localization of MT1 and MT2 were detected by immunocytochemistry and confirmed by western blotting. The recovery rate of progressive motility after thawing was higher in spring than autumn and winter; in contrast, the F pattern (CTC assay) was higher in winter than in the other seasons. A proportional increase in the AR pattern (CTC assay) was smaller in winter than in the other seasons and the proportion of sperm showing high plasma membrane fluidity was higher in spring than in summer and autumn. The seminal plasma MLT concentrations showed no significant interseasonal differences. The MT1 receptor was immunolocalised at the apical region of the sperm head, while MT2 was mainly localised in the neck. The relative expression of MLT receptors showed significant differences between summer and winter for all bands, except at 75 kDa of MT2. In conclusion, there was an association between the relative expression of MT1 and MT2 receptors throughout the year and sperm freezability in goat bucks in México. Post-thaw sperm quality is enhanced in semen samples collected during breeding season.
Collapse
Affiliation(s)
- Alberto J Cardenas-Padilla
- Laboratorio de Reproducción Animal, Unidad de Investigación Multidisciplinaria, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, 54714, Estado de México, Mexico.
| | | | - Marco Cerbon
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Coyoacán, 04510, Ciudad de México, Mexico.
| | - Araceli Chavez-Garcia
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Coyoacán, 04510, Ciudad de México, Mexico.
| | - Norma B Cruz-Cano
- Laboratorio de Biología de la Reproducción, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, 54090, Estado de México, Mexico.
| | - Martin Martinez-Torres
- Laboratorio de Biología de la Reproducción, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, 54090, Estado de México, Mexico.
| | - Alicia Alcantar-Rodriguez
- Laboratorio de Reproducción Animal, Unidad de Investigación Multidisciplinaria, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, 54714, Estado de México, Mexico.
| | - Alfredo Medrano
- Laboratorio de Reproducción Animal, Unidad de Investigación Multidisciplinaria, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, 54714, Estado de México, Mexico.
| |
Collapse
|
2
|
Elshamy AA, Kotram LE, Barakat OS, Mahmoud SM. The effects of green synthesized anionic cupric oxide nanoparticles on Zaraibi goat spermatozoa during cryopreservation with and without removal of seminal plasma. Anim Biotechnol 2023; 34:2582-2595. [PMID: 35930359 DOI: 10.1080/10495398.2022.2106992] [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: 11/01/2022]
Abstract
Sperm motility, normal morphology, viability, spermatozoa DNA damage, and lipid peroxidation are all affected by semen cryopreservation. The goal of this study was to see how effective cupric oxide nanoparticles (CuONPs) are as a cryo-extender additive on post-thawed sperm parameters. An artificial vagina was used to collect semen samples from five mature Zaraibi bucks (2-3 years). Ejaculates were pooled and separated into two fractions (A&B), a fraction (A) was left without being centrifuged and a fraction (B) was centrifuged to remove seminal plasma. Both fractions were diluted with tris egg yolk citrate extender (TECE) and then divided into five equal aliquots, each supplemented with (0, 10, 20, 40, and 60 ppm/ml) CuONPs. The findings revealed that removing seminal plasma before cryopreservation harms sperm parameters. Sperm motility, viability index, membrane integrity, biochemical antioxidant marker, DNA integrity, and MDA level improved after supplementation with CuONPs up to 60 ppm/ml, the most prominent significant positive effect was obtained with the highest dose (60 ppm/ml) without removal of the seminal plasm compared to control group. In conclusion: The presence of seminal plasma with a high concentration of CuONPs (up to 60 ppm/ml) may help to mitigate the negative effects of cryo-preservation.
Collapse
Affiliation(s)
- Ayat A Elshamy
- Artificial Insemination and Embryo Transfer Department, Animal Reproduction Research Institute, Agriculture Research Center (ARC), Giza, Egypt
| | - Laila E Kotram
- Immunity Department, Animal Reproduction Research Institute, Agriculture Research Center (ARC), Giza, Egypt
| | - Olfat Sayed Barakat
- Agricultural Microbiology Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Sara Mohamed Mahmoud
- Biotechnology Department, Faculty of Graduate Studies and Environmental Researches, Ain Shams University, Cairo, Egypt
| |
Collapse
|
3
|
Li R, Zhao H, Li B, Wang S, Hua S. Soybean lecithin and cholesterol-loaded cyclodextrin in combination to enhances the cryosurvival of dairy goat semen. Cryobiology 2023; 112:104557. [PMID: 37451667 DOI: 10.1016/j.cryobiol.2023.104557] [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] [Received: 01/19/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
The objective of the study was to examine the effect of soy lecithin (SL) and cholesterol loaded cryclodestrin (CLC) on cryo-survival of sperm cryopreserved in the presence or absence of seminal plasma in Saanen dairy goats. Tris-based dilutions containing various concentrations of SL (0, 0.5%, 1.0% or 2.0%) and CLC (0, 2.0 g/L, 4.0 g/L or 6.0 g/L CLC) were used to cryopreserve Saanen dairy goat sperm. The quality of frozen-thawed sperm, including progressive motility, viability, acrosome and plasma membrane integrity, as well as fertility were detected. Results found that the optimal combination of the two cryoprotectants was 1.0% SL+4.0 g/L CLC, which significantly increased progressive motility, viability, acrosome and plasma membrane integrity of frozen thawed sperm. The impact of the two cryoprotectants in combination was not affected by the presence of seminal plasma. The conception rates obtained after artificial insemination using sperm cryopreserved with and without seminal plasma were 88.89% and 91.67% (P > 0.05), respectively. The respective values for average number of litter sizes were 1.55 ± 0.17 and 1.56 ± 0.21 (P > 0.05). Therefore, this study improved the cryopreservation efficiency of goat semen, enhanced the sperm cryosurvival, and layed a foundation for the wide application of frozen goat semen.
Collapse
Affiliation(s)
- Rong Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Hubei Zhao
- Shaanxi Sanyuan Xinghuo Dairy Goat Raising Cooperative, Xianyang, Shaanxi, 713800, China.
| | - Bowen Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Siqi Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Song Hua
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| |
Collapse
|
4
|
Ustuner B, Ustuner H, Gokce E, Onder NT, Yilmaz MM, Huraydin O, Toker MB. The Combined Effect of Melatonin Implant and Removal of Buck Seminal Plasma on Cryopreservation During the Nonbreeding Season. Biopreserv Biobank 2023; 21:327-335. [PMID: 36126317 DOI: 10.1089/bio.2022.0074] [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: 11/13/2022] Open
Abstract
This study aimed to determine how melatonin (MT) and seminal plasma affected the freezability of buck sperm during the nonbreeding season. Semen was collected from eight bucks before (pre-MT) and after (post-MT) MT application in the nonbreeding season. Individual ejaculates were collected from the bucks, split into two equal groups according to the removal of seminal plasma (SP) (-) or nonremoval of SP (+). For washing, the groups of ejaculates were centrifuged, and the supernatant was separated, SP (-) and SP (+) ejaculates were diluted, then frozen. Semen samples were examined for sperm motility, plasma membrane integrity, defective acrosomes, DNA fragmentation, and mitochondrial membrane function at the native and post-thaw stages. When the general average post-thaw motility (p < 0.01), plasma membrane (p < 0.05), acrosome (p < 0.05), and DNA integrity rates (p < 0.05) and mitochondrial membrane potential (MMP) (p < 0.01) were evaluated, it was seen that MT administration caused a statistically significant improvement. The dramatic effect of nonremoval of seminal plasma on motility and plasma membrane integrity is more clearly observed in individual semen samples frozen in the pre-MT group (p < 0.05). Also, it was observed that removing seminal plasma in the post-MT group caused even milder post-thaw acrosome damage compared with the SP (+) group (p < 0.05). The effect of removing seminal plasma was not observed in terms of DNA integrity and MMP rates in pre- and post-MT groups. As a result, it was concluded that MT application and removal of seminal plasma in the nonbreeding season result in improvement in the freezability of buck semen.
Collapse
Affiliation(s)
- Burcu Ustuner
- Department of Reproduction and Artificial Insemination and Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Hakan Ustuner
- Department of Animal Science, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Elif Gokce
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Namık Kemal University, Tekirdag, Turkey
| | - N Tekin Onder
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Kafkas University, Kars, Turkey
| | - M Melih Yilmaz
- Department of Reproduction and Artificial Insemination and Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Oguzhan Huraydin
- Department of Reproduction and Artificial Insemination and Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - M Berk Toker
- Department of Reproduction and Artificial Insemination and Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| |
Collapse
|
5
|
Hameed N, Zubair M, Ahmad N, Durrani AZ, Khan MIUR. Effects of extender type and storage time on sperm quality parameters of Kail ram semen stored at 5 °C. Trop Anim Health Prod 2023; 55:171. [PMID: 37093355 DOI: 10.1007/s11250-023-03594-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
The study was designed to evaluate the effect of different extenders and storage times on sperm quality parameters of extended Kail ram semen. Semen was collected from five adult Kail rams using an artificial vagina. Semen samples with >70% total sperm motility were pooled, diluted with Tris (TR), sodium citrate (SC), and skim milk (SM)-based extenders, and stored at 5 °C. Sperm motility and kinematics, viability, and plasma and acrosomal membrane integrity were assessed every 24 hrs for 120 hrs. Sperm longevity was estimated by placing semen in a water bath at 37°C to assess sperm kinematics. Storage time as the main effect had a negative (P < 0.05) impact on sperm quality parameters. The percentages of total motile (TM), progressive motile (PM), rapid, and medium progressive (MP) motile sperm were similar at 24 hrs of storage for the three extenders. However, semen extended in TR had a higher (P < 0.05) percentage of TM, PM, rapid, and MP sperm compared to SM and SC extenders at 48 hrs of storage. The sperm kinematics (VCL, VSL, VAP, and ALH) of progressive sperm were similar for all three extenders up to 72 hrs of storage. In addition, semen extended in TR had a higher (P < 0.05) percentage of sperm with intact plasma and acrosomal membranes at a storage time of 48 hrs. At 37 °C, the percentage of TM and PM sperm was higher (P < 0.05) in the TR extender than in the SM and SC extenders at 60 minutes and beyond. In conclusion, the Kail ram sperm extended in TR and stored at 5 °C maintained better quality after 48 hrs storage than sperm extended in SM and SC extenders. At 37 °C, sperm extended in TR also retained better quality parameters at 60 min and afterward than sperm extended in SM and SC.
Collapse
Affiliation(s)
- Nasir Hameed
- Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
- Department of Veterinary Clinical Sciences, University of Poonch Rawalakot, Rawalakot, 12350, Azad Kashmir, Pakistan
| | - Muhammad Zubair
- Department of Veterinary Clinical Sciences, University of Poonch Rawalakot, Rawalakot, 12350, Azad Kashmir, Pakistan.
| | - Nasim Ahmad
- Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Aneela Zameer Durrani
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | | |
Collapse
|
6
|
Post-Thaw Quality of Spermatozoa Frozen with Three Different Extenders in the Murciano Granadina Goat Breed. Animals (Basel) 2023; 13:ani13020309. [PMID: 36670848 PMCID: PMC9854699 DOI: 10.3390/ani13020309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/05/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Artificial insemination (AI) with frozen semen in goats still presents serious difficulties, especially in certain goat breeds, in spite of technological progress. The aim of this work is the in vitro study of seminal extenders adapted from those used on other species to evaluate the response of goat sperm to several homeostatic conditions in order to achieve optimal post-thaw semen quality. Three different extenders based on different activity principles were used: (1) extender according to the methodology proposed for pigs, (2) skimmed-milk-based extender according to the methodology proposed for goats in France, and (3) a new egg-yolk-based extender replacing membrane-protective surfactants with sodium dodecyl sulfate (SDS) and named by our team as extender "IMIDA". The freezing guidelines were those proposed for the freezing of porcine semen. The results obtained show that the egg-yolk-based extenders have good parameters of sperm motility at thawing, studied objectively using the computer-assisted sperm analysis (CASA) system and also subjectively. In particular, in the sperm resistance test after five hours, the thawed sperm containing SDS in their composition showed an optimal average on every evaluated parameter. The new IMIDA extender provided the highest sperm quality averages, so it could be a good extender to use in cryopreservation of semen in the caprine species.
Collapse
|
7
|
Sánchez-Rivera UÁ, Medrano A, Cruz-Cano NB, Alcántar-Rodríguez A, Dávila-Govantes R, Castro-Camacho YJ, Martínez-Torres M. Implementation of a method for sperm cryopreservation in sceloporine lizards. CONSERVATION PHYSIOLOGY 2022; 10:coac068. [PMID: 36382339 PMCID: PMC9644977 DOI: 10.1093/conphys/coac068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 10/06/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Actual loss of lizard biodiversity continues, even with the implementation of conventional conservation programs. An approach including assisted reproductive techniques such as sperm cryopreservation may contribute to the management of endangered species. We developed a method for sperm cryopreservation in sceloporine lizards and compared the response among the studied species. Prior to the mating season, we obtained semen from adult males of Sceloporus aeneus (n = 21), Sceloporus grammicus (n = 20) and Sceloporus torquatus (n = 21) via pressure of the genital papilla. Volume and sperm concentration were measured before semen dilution in a Tris-egg yolk (TEY) medium to evaluate progressive motility, sperm viability, morphology, plasma membrane and acrosome integrity. Then, we cooled the remaining volumes to 5°C at a rate of 0.1°C per minute to incorporate glycerol (8% v/v) in two fractions. Immediately afterwards, we placed 40 μl of the mix on solid CO2 to form pellets and immersed them in liquid nitrogen for storage. We thawed the pellets at 29°C for 3 minutes and diluted them 1:1 (v/v) in TEY medium to assess sperm quality. We found a positive relationship between body weight and seminal volume in S. grammicus and S. torquatus and a negative correlation with sperm concentration in S. grammicus (P < 0.05). Moreover, we observed that the freezing-thawing process decreased sperm quality in the three species, mostly affecting motility and viability. However, S. torquatus and S. aeneus showed a higher sperm tolerance than S. grammicus.
Collapse
Affiliation(s)
- Uriel Á Sánchez-Rivera
- Laboratorio de Biología de la Reproducción. Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, 54090, México
- Laboratorio de Reproducción Animal. Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, 54714, México
- Posgrado en Ciencias de la Producción y de la Salud Animal, Universidad Nacional Autónoma de México, 04510, México
| | - Alfredo Medrano
- Laboratorio de Reproducción Animal. Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, 54714, México
| | - Norma B Cruz-Cano
- Laboratorio de Biología de la Reproducción. Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, 54090, México
| | - Alicia Alcántar-Rodríguez
- Laboratorio de Reproducción Animal. Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, 54714, México
| | - Rodrigo Dávila-Govantes
- Laboratorio de Biología de la Reproducción. Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, 54090, México
| | - Yabín J Castro-Camacho
- Laboratorio de Biología de la Reproducción. Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, 54090, México
| | - Martín Martínez-Torres
- Laboratorio de Biología de la Reproducción. Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, 54090, México
| |
Collapse
|
8
|
Zou J, Wei L, Li D, Zhang Y, Wang G, Zhang L, Cao P, Li G. Study on cryopreservation of Guanzhong dairy goat semen with bovine semen seminal plasma. Theriogenology 2022; 189:113-117. [PMID: 35751978 DOI: 10.1016/j.theriogenology.2022.05.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 04/25/2022] [Accepted: 05/28/2022] [Indexed: 10/18/2022]
Abstract
There are phospholipase and yolk agglutinase in the seminal plasma of dairy goat. The existence of these enzymes will hydrolyze lecithin in yolk into lysophosphatides and cause the change of pH value of diluent, resulting in toxic and side effects on sperm. In order to explore the effect of bovine seminal plasma replacing different doses of dairy goat seminal plasma (0%, 25%, 50%, 100%) on semen freezing quality of Guanzhong dairy goat, we used computer-aided sperm analysis (CASA) system, specific fluorescent probe detection technology, hypo osmotic swelling test (HOST), oxidation index determination and in vivo fertilization verification test to study the semen cryopreservation of Guanzhong dairy goat. The results showed that if we used bovine seminal plasma instead of 100% dairy goat seminal plasma, the sperm motility, plasma membrane functionality and acrosome integrity rate were the highest after thawing, reaching 67.04%, 38.12% and 68.83% respectively, which was significantly higher than that of other groups (P < 0.05); In terms of oxidation indexes, the values of SOD and GSH-PX in sperm of dairy goats were 199.78 U/mL and 133.55 U/L, respectively, which were significantly higher than those in other groups (P < 0.05), and the values of ROS and MDA were 397.58 U/mL and 5.16 nmol/L, respectively, which were significantly lower than those in other groups (P < 0.05); The results of artificial insemination also showed that using bovine seminal plasma instead of 100% of dairy goat seminal plasma could significantly improve the fertilization ability of sperm. The quality of frozen Guanzhong dairy goat sperm can be improved by using bovine seminal plasma instead of dairy goat seminal plasma and using bovine diluent.
Collapse
Affiliation(s)
- Jiahao Zou
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Lixuan Wei
- Xi'an Dairy Cow Breeding Center, Xi'an Agriculture and Rural Affairs Bureau, Xi'an, Shaanxi, 710007, PR China
| | - Dexian Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Yongtao Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Guang Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Lei Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China
| | - Ping Cao
- Xi'an Dairy Cow Breeding Center, Xi'an Agriculture and Rural Affairs Bureau, Xi'an, Shaanxi, 710007, PR China
| | - Guang Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, PR China.
| |
Collapse
|
9
|
Sandal Aİ, Şenlikci H, Yılmazer M, Kartal B, Palabıyık B, Özdaş ÖB. Determination of oxidative stress parameters and DNA fragmentation on post-thawed buck semen in the presence of ram seminal plasma and fetal calf serum. Andrologia 2021; 53:e14032. [PMID: 33682131 DOI: 10.1111/and.14032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/07/2021] [Accepted: 02/17/2021] [Indexed: 11/26/2022] Open
Abstract
The aim of the study was to investigate the efficiency of ram seminal plasma and fetal calf serum on freezing of buck semen. Twenty ejaculates were collected using an electro-ejaculator and split into six groups. While FCS additive was not used in A1, A2 and A3 groups, 10% FCS was added to B1, B2 and B3 groups. These groups were then edited according to whether the buck or ram SP was involved. The design of the groups was done as follows: Group A1 (control 1), group A2 without buck SP, group A3 containing ram SP instead of buck SP. Groups B1 (control 2), B2 and B3 were the FCS added forms of these groups. Progressive sperm motility percentages in Group A1 and Group B2 were found to be higher when compared to the lowest Group B3. There were no significant differences between the groups in neither the levels of reactive oxygen species nor the enzyme and glutathione activities. In conclusion, the lack of statistical difference between the groups suggested that despite the supplements used but only when the buck spermatozoa structure was healthy, the cell could preserve acrosome, DNA and the integrity of membrane.
Collapse
Affiliation(s)
- Asiye İzem Sandal
- Department of Reprodution and Artificial Insemination, Faculty of Veterinary Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Hatice Şenlikci
- Department of Reprodution and Artificial Insemination, Institute of Graduate Studies, Istanbul University- Cerrahpaşa, Istanbul, Turkey
| | - Merve Yılmazer
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - Burcu Kartal
- Department of Molecular Biology and Genetics, Institute of Science, Istanbul University, Istanbul, Turkey
| | - Bedia Palabıyık
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - Özen Banu Özdaş
- Department of Reprodution and Artificial Insemination, Faculty of Veterinary Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| |
Collapse
|
10
|
Nazari P, Farshad A, Vaziry A, Rostamzadeh J. Evaluation of pentoxifylline and Basal Medium Eagle supplemented to diluent on cryopreserved goat spermatozoa. Reprod Domest Anim 2020; 55:1303-1313. [PMID: 32654314 DOI: 10.1111/rda.13774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/08/2020] [Indexed: 11/29/2022]
Abstract
This study investigated the effect of pentoxifylline (PTX) and Basal Medium Eagle (BME) on frozen-thawed goat spermatozoa. Immediately after initial examination of ejaculated semen, samples were pooled and reexamined for quality. Then, samples were divided into eight equal aliquots and diluted with a basic tris-extender containing PTX (3, 6, 9 mM) and BME (5 mM) to reach a final concentration of 25 × 109 and frozen. After 24 hr, the samples were individually thawed at 37°C for 30 s and evaluated for different characteristics. Obtained post-thaw results from Computer-Assisted Sperm Analysis indicate using of 3 and 6 mM PTX led significantly to an improvement in total motility, progressive motility and velocity characteristics of spermatozoa, except the beat/cross frequency (BCF) which indicated statistically no differences (p > .05) among control and treatments. Diluents prepared with BME (5 mM) and PTX alone (3 and 6 mM) improved significantly the membrane integrity-functionality, acrosome integrity and also hyaluronidase activity. Regarding recovery rate, the results showed significantly (p < .05) higher values for diluents containing 3 and 6 mM PTX compared to other groups. Malondialdehyde concentration exhibited also a significant difference (p < .05) in diluents supplemented with 5 mM BME, 3, 6 and 9 mM PTX, and mixture of 3 mM PTX and 5 mM BME which illustrate a similarity for active mitochondria, apoptotic-like and dead spermatozoa. Finally, the ratio of sperm chromatin dispersion stained spermatozoa presented significant differences (p < .05) among treatments in which the diluents added PTX alone demonstrated significantly lower values than control and extenders containing the mixtures of BME and PTX. In conclusion, the observation in this study indicates using of 3 and 6 mM PTX and BME alone may improve significantly (p < .05) the quality of cryopreserved goat spermatozoa.
Collapse
Affiliation(s)
- Parisa Nazari
- Laboratory of Reproduction Biology, Department of Animal Science, University of Kurdistan, Sanandaj, Kurdistan, Iran
| | - Abbas Farshad
- Laboratory of Reproduction Biology, Department of Animal Science, University of Kurdistan, Sanandaj, Kurdistan, Iran
| | - Asaad Vaziry
- Laboratory of Reproduction Biology, Department of Animal Science, University of Kurdistan, Sanandaj, Kurdistan, Iran
| | - Jalal Rostamzadeh
- Laboratory of Reproduction Biology, Department of Animal Science, University of Kurdistan, Sanandaj, Kurdistan, Iran
| |
Collapse
|
11
|
Martínez-Fresneda L, O'Brien E, López Sebastián A, Velázquez R, Toledano-Díaz A, Tesfaye D, Schellander K, García-Vázquez FA, Santiago-Moreno J. In vitro supplementation of testosterone or prolactin affects spermatozoa freezability in small ruminants. Domest Anim Endocrinol 2020; 72:106372. [PMID: 31431310 DOI: 10.1016/j.domaniend.2019.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/29/2019] [Accepted: 06/29/2019] [Indexed: 12/15/2022]
Abstract
In small ruminants, testosterone and prolactin plasma concentrations show circannual fluctuations as an adaptation mechanism to their seasonal breeding behavior. Sperm resistance to the freezing-thawing process shows seasonal fluctuation throughout the year, with lower sperm freezability at the beginning of the breeding season when prolactin and testosterone levels reach their maximum concentration. Nevertheless, whether these hormones directly affect post-thaw sperm quality parameters is still unclear. The objective was to study the effect of testosterone or prolactin added in vitro on sperm freezability in domestic ram (Ovis aries) and buck (Capra hircus). Sperm samples were incubated for 1 h with a range of testosterone (0, 2, 4, or 6 ng/mL; Exp. 1) or prolactin (0, 20, 100, 200, or 400 ng/mL; Exp. 2) concentrations. Samples were cryopreserved by slow freezing in straws at 0 h and after 1 h incubation. Sperm viability, acrosome integrity, motility, and kinetic parameters were assessed at 0 and 1 h in fresh and frozen-thawed samples. Results showed no hormone effect in fresh sperm, whereas these hormones affected post-thaw sperm parameters. In Exp. 1, in vitro incubation with testosterone decreased the post-thaw acrosome integrity of ram sperm (from 68.1 ± 6.3% to 49.6 ± 3.9%; P < 0.05). In Exp. 2, in vitro incubation with prolactin decreased the post-thaw acrosome integrity of ram (from 78.2 ± 3.4% to 66.3 ± 3.5%; P < 0.05) and buck sperm (from 81.7 ± 2.5% to 67.6 ± 3.5%; P < 0.05). Moreover, prolactin increased the post-thaw amplitude of lateral head displacement in ram sperm (from 3.3 ± 0.1 μm to 3.8 ± 0.2 μm; P < 0.05). In conclusion, either testosterone or prolactin added in vitro decreased the post-thaw acrosome integrity of ram and buck sperm. This suggests a destabilization process that could be decreasing sperm freezability when physiological levels of these hormones are high in vivo.
Collapse
Affiliation(s)
- L Martínez-Fresneda
- Department of Animal Reproduction, Spanish National Institute for Agricultural and Food Research and Technology (INIA), 28040 Madrid, Spain; Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, 53115 Bonn, Germany; Department of Physiology, Faculty of Veterinary Science, International Excellence Campus for Higher Education and Research 'Campus Mare Nostrum', 30100 Murcia, Spain
| | - E O'Brien
- Department of Animal Reproduction, Spanish National Institute for Agricultural and Food Research and Technology (INIA), 28040 Madrid, Spain
| | - A López Sebastián
- Department of Animal Reproduction, Spanish National Institute for Agricultural and Food Research and Technology (INIA), 28040 Madrid, Spain
| | - R Velázquez
- Department of Animal Reproduction, Spanish National Institute for Agricultural and Food Research and Technology (INIA), 28040 Madrid, Spain
| | - A Toledano-Díaz
- Department of Animal Reproduction, Spanish National Institute for Agricultural and Food Research and Technology (INIA), 28040 Madrid, Spain
| | - D Tesfaye
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, 53115 Bonn, Germany
| | - K Schellander
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, 53115 Bonn, Germany
| | - F A García-Vázquez
- Department of Physiology, Faculty of Veterinary Science, International Excellence Campus for Higher Education and Research 'Campus Mare Nostrum', 30100 Murcia, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), University of Murcia, 30120 Murcia, Spain
| | - J Santiago-Moreno
- Department of Animal Reproduction, Spanish National Institute for Agricultural and Food Research and Technology (INIA), 28040 Madrid, Spain.
| |
Collapse
|
12
|
Falchi L, Pau S, Pivato I, Bogliolo L, Zedda MT. Resveratrol supplementation and cryopreservation of buck semen. Cryobiology 2020; 95:60-67. [PMID: 32533984 DOI: 10.1016/j.cryobiol.2020.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 05/02/2020] [Accepted: 06/04/2020] [Indexed: 11/27/2022]
Abstract
Resveratrol (Resv) was tested to assess its effects on buck semen freezability. Ejaculates of 4 bucks were collected, washed and diluted in a commercial extender at 30 °C. Extended semen was divided into 4 aliquots supplemented with increasing concentrations of Resv: 0 μM (control); 10 μM; 25 μM and 50 μM. Aliquots were cooled to 4 °C in 5h and frozen in LN2. Thawing was performed at 37 °C for 30 s. At the 3 stages of the experiment (30 °C, 4 °C, thawing), motility (CASA), osmotic resistance (Hos test) and integrity of cytoplasm and acrosome membranes (PI/PSA staining) were assessed. Moreover, in thawed samples, the oxidative status (MDA assay) and early apoptosis (DNA fragmentation by TUNEL assay) were evaluated. Resveratrol supplementation did not affect most of the motility parameters analysed, except for total motility, ALH (lateral head displacement) and velocity distribution (P < 0.05). Functional and morphological integrity of membranes was not affected at any stage of the experiment (P > 0.05). In thawed spermatozoa, the oxidative status was not preserved by Resv (P > 0.05) while early apoptosis, was significantly decreased in the 50 μM Resv group (P < 0.05). Resveratrol did not improve buck semen freezability; the observed effects on motility and DNA were not dose dependent and not mediated by a potential anti-oxidant activity.
Collapse
Affiliation(s)
- Laura Falchi
- Sezione di Clinica Ostetrica e Ginecologia, Dipartimento di Medicina Veterinaria, Università degli studi di Sassari, via Vienna n.2, 07100, Sassari, Italy.
| | - Salvatore Pau
- Sezione di Clinica Ostetrica e Ginecologia, Dipartimento di Medicina Veterinaria, Università degli studi di Sassari, via Vienna n.2, 07100, Sassari, Italy; Centro di Competenza Biodiversità Animale, viale Adua 2/c, Sassari, 07100, Italy.
| | - Ivo Pivato
- Faculdade de Agronomia e Medicina Veterinaria, Universidade de Brasilia, Campus Universitario Darcy Ribeiro, Brasilia, 70910-900, Brazil.
| | - Luisa Bogliolo
- Sezione di Clinica Ostetrica e Ginecologia, Dipartimento di Medicina Veterinaria, Università degli studi di Sassari, via Vienna n.2, 07100, Sassari, Italy.
| | - Maria Teresa Zedda
- Sezione di Clinica Ostetrica e Ginecologia, Dipartimento di Medicina Veterinaria, Università degli studi di Sassari, via Vienna n.2, 07100, Sassari, Italy.
| |
Collapse
|
13
|
Gororo E, Zulu PT, Chatiza FP, Mhuka C. Effects of different extenders and storage temperatures on longevity of small East African goat (Capra hircus) semen. Small Rumin Res 2019. [DOI: 10.1016/j.smallrumres.2019.04.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
14
|
Álvarez-Rodriguez M, Álvarez M, Anel-López L, Guerra C, Chamorro CA, Anel L, de Paz P, Martínez-Pastor F. Effect of length of time post-mortem on quality and freezing capacity of Cantabric chamois (Rupicapra pyrenaica parva) epididymal spermatozoa. Anim Reprod Sci 2018; 198:184-192. [PMID: 30301620 DOI: 10.1016/j.anireprosci.2018.09.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/17/2018] [Accepted: 09/27/2018] [Indexed: 12/17/2022]
Abstract
Genome Resource Banks are keystones in the ex-situ conservation of wild species. Post-mortem (PM) collection of epididymal spermatozoa is an opportunistic and valuable source of germplasm, the time from the death of the animal limits its use. Seeking to improve germplasm preservation strategies for the chamois (Rupicapra sp.), the effect of PM time on epididymal sperm quality and freezability was studied using the Cantabrian chamois. Samples were classified according to PM collection time, up to 216 h (refrigerated), and cryopreserved (Tris-citric acid-fructose, 430 mOsm/kg, 15% egg yolk, 8% glycerol; freezing at -20 °C/min). Sperm quality was assessed after recovery and post-thawing (motility by CASA, HOS test, abnormal forms, cytoplasmic droplets, and viability and acrosomal damage by flow cytometry). The sperm mass pH and osmolality showed a positive correlation with time. Total sperm motility dropped after 2 days PM, with progressivity and sperm velocities remained similar up to 3 days PM. Sperm freezability was acceptable, with the post-thawing HOST, motility, progressivity, VAP, VCL, VSL and BCF negatively correlating with PM time. Overall, chamois epidydimal samples were not adequate for preservation after 6 days PM. Freezability capacity could make these spermatozoa suitable for specific ART even if kept refrigerated for several days PM.
Collapse
Affiliation(s)
- M Álvarez-Rodriguez
- Department of Clinical and Experimental Medicine (IKE), BKH, Obstetrics and Gynecology, Linköping University, Linköping, Sweden; Department of Animal Health and Anatomy, Veterinary Faculty, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Álvarez
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain; INDEGSAL, Universidad de León, 24071 León, Spain
| | - L Anel-López
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain; INDEGSAL, Universidad de León, 24071 León, Spain
| | - C Guerra
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain
| | - C A Chamorro
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain; INDEGSAL, Universidad de León, 24071 León, Spain
| | - L Anel
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain; INDEGSAL, Universidad de León, 24071 León, Spain
| | - P de Paz
- INDEGSAL, Universidad de León, 24071 León, Spain; Department of Molecular Biology (Cell Biology), Universidad de León, Spain
| | - F Martínez-Pastor
- INDEGSAL, Universidad de León, 24071 León, Spain; Department of Molecular Biology (Cell Biology), Universidad de León, Spain.
| |
Collapse
|
15
|
Ustuner B, Gokce E, Toker MB, Onder NT, Soylu MK, Sagirkaya H, Nur Z. Effect of sperm pooling with seminal plasma collected in breeding or nonbreeding season on Saanen goat sperm cryosurvival. Andrologia 2018; 50:e12968. [PMID: 29392746 DOI: 10.1111/and.12968] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2017] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to determine the effects of both the removal of seminal plasma (SP) and the pre-freezing addition of seminal plasma collected during the breeding or nonbreeding season on goat sperm survival after thawing. Semen samples were pooled. One aliquot of pooled semen was used as a control group. Four aliquots were then centrifuged, and the SP was removed in Group I, pipetted but not removed in Group II, removed and then pooled for animals collected in the breeding season in Group III and removed and pooled for animals collected in the nonbreeding season in Group IV. Group samples were frozen and then were assessed for rates of sperm motility, plasma membrane functional integrity hypo-osmotic swelling test (HOST), defective acrosomes (FITC-PSA), DNA fragmentation (TUNEL) and mitochondrial membrane damage (Rhodamine 123). The results showed that pre-freezing addition of SP collected in breeding season maintained post-thaw sperm characteristics at 0 hr better than SP removal group, but removing seminal plasma showed positive effects on spermatozoa, as incubation time increased to 5 hr. In conclusion, the pre-freezing addition of seminal plasma did not maintain post-thaw goat sperm characteristics as successfully as in the groups with seminal plasma removed after an incubation period.
Collapse
Affiliation(s)
- B Ustuner
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle/Bursa, Turkey
| | - E Gokce
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle/Bursa, Turkey
| | - M B Toker
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle/Bursa, Turkey
| | - N T Onder
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle/Bursa, Turkey
| | - M K Soylu
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle/Bursa, Turkey
| | - H Sagirkaya
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle/Bursa, Turkey
| | - Z Nur
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle/Bursa, Turkey
| |
Collapse
|
16
|
Effect of the type of egg yolk, removal of seminal plasma and donor age on buck sperm cryopreservation. Small Rumin Res 2017. [DOI: 10.1016/j.smallrumres.2017.01.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
17
|
Andrabi SH, Mehmood A, Anwar M, Khan MF. In vitro viability and longevity of cooled Beetal buck spermatozoa extended in skimmed milk and Tris-citric acid based extenders. Small Rumin Res 2016. [DOI: 10.1016/j.smallrumres.2016.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
18
|
Kumar N, Rai B, Bhat SA, Kharche SD, Gangwar C, Jindal SK, Chandra S. Effect of management system and season on semen freezability in Jakhrana bucks. Vet World 2016; 9:199-202. [PMID: 27051208 PMCID: PMC4819372 DOI: 10.14202/vetworld.2015.199-202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 12/30/2015] [Accepted: 01/12/2016] [Indexed: 11/16/2022] Open
Abstract
AIM The objective of the study was to determine the effect of the management system (intensive and semi-intensive) and season (autumn and winter) on semen freezability in Jakhrana bucks. MATERIALS AND METHODS A total of 24 Jakhrana bucks of same body weight and age (BW=30 kg, age=1 year) were randomly allotted into two groups, viz., Group I (intensive system, 12 bucks) and Group II (semi-intensive system, 12 bucks). These two groups were statistically tested for their homogeneity with respect to age and BW. Semen was collected twice weekly using an artificial vagina during two seasons: autumn (September-November) and winter (December-February). A total of 240 semen samples (120 from each group and season) were evaluated for post-thaw motility (PTM), viability, abnormality, functional membrane integrity (hypo-osmotic swelling [HOS]) response and acrosomal integrity. RESULTS The mean values of PTM and acrosomal integrity of spermatozoa were significantly (p<0.01) higher in Group II as compared to Group I. The mean values of viability and abnormality were also differed significant (p<0.05) between groups. However, the mean values of HOS response were found non-significant (p>0.05) between groups. The season showed a significant effect on all parameters except viability and HOS response. The PTM and acrosomal integrity of spermatozoa were significantly (p<0.01) higher in winter as compared to autumn season. Abnormality of spermatozoa was significantly (p<0.05) lower in winter season. CONCLUSIONS This study indicates that both management system and season influence semen freezability. The semen collected from bucks reared under the semi-intensive system and winter season showed better semen freezability characteristics.
Collapse
Affiliation(s)
- Narendra Kumar
- Department of Livestock Production and Management, ICAR - National Dairy Research Institute, Karnal - 132 001, Haryana, India
| | - B Rai
- Department of Physiology Reproduction and Shelter Management, ICAR- Central Institute for Research on Goats, Mathura - 281 001, Uttar Pradesh, India
| | - Showkat A Bhat
- Department of Livestock Production and Management, ICAR - National Dairy Research Institute, Karnal - 132 001, Haryana, India
| | - S D Kharche
- Department of Physiology Reproduction and Shelter Management, ICAR- Central Institute for Research on Goats, Mathura - 281 001, Uttar Pradesh, India
| | - Chetna Gangwar
- Department of Physiology Reproduction and Shelter Management, ICAR- Central Institute for Research on Goats, Mathura - 281 001, Uttar Pradesh, India
| | - S K Jindal
- Department of Physiology Reproduction and Shelter Management, ICAR- Central Institute for Research on Goats, Mathura - 281 001, Uttar Pradesh, India
| | - Subhash Chandra
- Department of Livestock Production and Management, ICAR - National Dairy Research Institute, Karnal - 132 001, Haryana, India
| |
Collapse
|
19
|
Kumar N, Rai B, Bhat SA, Kharche SD, Gangwar C, Jindal SK, Chandra S. Effect of management system and season on semen freezability in Jakhrana bucks. Vet World 2016. [DOI: 10.14202/vetworld.2016.199-202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
20
|
Ahmad M, Nasrullah R, Ahmad N. Effect of cooling rate and equilibration time on pre-freeze and post-thaw survival of buck sperm. Cryobiology 2015; 70:233-8. [PMID: 25771348 DOI: 10.1016/j.cryobiol.2015.03.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 02/27/2015] [Accepted: 03/02/2015] [Indexed: 01/12/2023]
Abstract
Survival of buck sperm is affected due to duration and temperature of stages of refrigerated or frozen storage. This study investigated interactive effect of cooling rates (moderate; MC and rapid cooling; RC); and equilibration times (0, 2, 4 and 8h) on survival before freezing at 4°C and post-thaw quality of buck sperm. Semen was collected (three Beetal bucks; replicates=6), pooled and diluted with Tris-citrate extender. Pooled semen samples were subjected to either RC (-2.2°C/min) or MC (-0.3°C/min) from 37°C to 4°C in separate aliquots and further equilibrated at 4°C for 8h. Semen was frozen using standard procedure after completion of each equilibration period i.e. 0, 2, 4 and 8h. Semen was evaluated for motility, viability, plasma membrane integrity (PMI) and normal apical ridge (NAR) before freezing and after thawing. The survival time (time for survival above threshold limit i.e. 60%) at 4°C, of motility and PMI was observed 5 and 6h respectively in RC group while >8h in MC group. Rate of decline (slope) in motility and viability was higher (P<0.05) in RC overtime during equilibration at 4°C while PMI and NAR declined at equal rate in both cooling groups. Post-thaw motility and NAR were higher (P<0.05) in MC when equilibrated for 2-8h while viability and PMI of RC was observed equal to MC group. In conclusion, survival of buck sperm is higher when cooled with moderate rate. However, RC can maintain post-thaw sperm viability and PMI equal to MC when equilibrated for 2-8h. The methods should be explored to maintain motility and NAR during rapid cooling of buck sperm.
Collapse
Affiliation(s)
- Mushtaq Ahmad
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan.
| | - Rashad Nasrullah
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Nasim Ahmad
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| |
Collapse
|
21
|
|
22
|
Ahmad M, Nasrullah R, Riaz H, Sattar A, Ahmad N. Changes in motility, morphology, plasma membrane and acrosome integrity during stages of cryopreservation of buck sperm. J S Afr Vet Assoc 2014; 85:972. [PMID: 24832216 DOI: 10.4102/jsava.v85i1.972] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 07/17/2013] [Accepted: 07/30/2013] [Indexed: 11/01/2022] Open
Abstract
Changes in sperm structure and function occur during the processing of semen. The present study was designed to investigate the effect on buck sperm during different stages of semen preparation including dilution, cooling, equilibration and freeze-thawing. Semen ejaculates from three mature bucks (replicates = 5) were diluted with tris-citric acid egg yolk glycerol extender at 37 ºC, cooled to 4 ºC over 90 min, equilibrated at 4 ºC for 2 h, transferred to 0.5 mL straws, placed in nitrogen vapour, frozen and thawed and then analysed. Sperm samples were assessed for percentage motility, acrosomal and plasma membrane integrity, live sperm, and morphology after dilution, cooling, equilibration and thawing. Mean percentage motility after dilution (86.0 ± 1.4%) was reduced significantly (p < 0.05) due to cooling and equilibration (77.6 ± 1.3% and 74.6 ± 1.4% respectively); furthermore, it decreased significantly (p < 0.05) after freezing and thawing (42.3 ± 2.5%). Mean percentage of live sperm was higher (p < 0.05) after dilution (89.3 ± 1.4%)compared with cooling (84.8 ± 1.8%) and equilibration (80.2 ± 2.5%) and further reduced (p < 0.05) after freezing and thawing (56.0 ± 3.4%). Sperm morphology dropped significantly (p < 0.05) from 96.4 ± 0.3% after dilution to 88.8 ± 1.3% at cooling and further decreased (p < 0.05) after freezing and thawing (81 ± 1.9%). Mean percentage of sperm with normal plasma membrane after dilution (82.2 ± 1.1%) was significantly reduced (p < 0.05) at cooling or equilibration (73.8 ± 1.8) and further decreased (p < 0.05) after freezing and thawing (50.1 ± 2.9%). The percentage of sperm with normal acrosomes did not differ significantly due to dilution, cooling or equilibration (85.8 ± 1.7%, 83.2 ± 1.6%, 81.7 ± 1.8%) but was significantly reduced after freezing and thawing (45.2 ± 2.8%). In conclusion, frozen thawed sperm showed maximum damage to motility, morphology, plasma membrane and acrosome integrity following cooling.
Collapse
Affiliation(s)
| | | | | | | | - Nasim Ahmad
- Department of Theriogenology, University of Veterinary and Animal Sciences.
| |
Collapse
|
23
|
Jiménez-Rabadán P, Ramón M, García-Álvarez O, Maroto-Morales A, Álvaro-García PJ, Del Olmo E, Pérez-Guzmán MD, Fernández-Santos MR, Julián Garde J, Soler AJ. Improved cryopreservation protocol for Blanca-Celtibérica buck semen collected by electroejaculation. Cryobiology 2013; 67:251-7. [DOI: 10.1016/j.cryobiol.2013.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 06/06/2013] [Accepted: 08/05/2013] [Indexed: 11/27/2022]
|
24
|
Shi L, Ren Y, Zhou H, Hou G, Xun W, Yue W, Zhang C, Yang R. Effect of rapid freezing-thawing techniques on the sperm parameters and ultrastructure of Chinese Taihang black goat spermatozoa. Micron 2013; 57:6-12. [PMID: 24268840 DOI: 10.1016/j.micron.2013.09.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 09/17/2013] [Accepted: 09/17/2013] [Indexed: 10/26/2022]
Abstract
Supercooling sperm in liquid nitrogen vapour is a feasible and economic technique for the practical production. The study aimed to reveal the negative effects of this rapid freezing and thawing processes on Taihang black goat spermatozoa and to find out the changing of spermatozoa motility and ultrastructure by using CASA and TEM. Qualified semen samples, which collected from twenty Chinese Taihang black goats using artificial vagina were pooled and investigated the kinematics parameters and ultrastructural morphology. The results showed that freezing-thawing caused a significant reduction in the spermatozoon total motility (P<0.001), in rapid and medium cell numbers (P<0.001) and motility parameters (VAP, VSL, VCL, ALH and BCF) (P<0.01). Immotile spermatozoa number was increased significantly after freezing-thawing (P<0.001). In the ultrastructural analysis, the shape with a sperm nucleus characterized by ruptures, bend and deformity was observed. The plasma membranes were broken, and nucleoplasm erupted. The mitochondria in the middle piece were disturbed by partial absence or additional accumulations. Swelling, coiling, vacuolization and structural disorganization of mitochondria were also observed. In conclusion, Freezing-thawing procedure has a detrimental effect on motility, membrane integrity and mitochondria of goat spermatozoa. Transmission electron microscopy provides an intuitive observation to investigate deformity spermatozoa.
Collapse
Affiliation(s)
- Liguang Shi
- Tropical Crop Genetic Resource Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Danzhou, Hainan 571737, PR China; College of Animal Sciences and Veterinary Medicines, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Youshe Ren
- College of Animal Sciences and Veterinary Medicines, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Hanlin Zhou
- Tropical Crop Genetic Resource Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Danzhou, Hainan 571737, PR China
| | - Guanyu Hou
- Tropical Crop Genetic Resource Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Danzhou, Hainan 571737, PR China
| | - Wenjuan Xun
- Tropical Crop Genetic Resource Research Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS), Danzhou, Hainan 571737, PR China.
| | - Wenbin Yue
- College of Animal Sciences and Veterinary Medicines, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Chunxiang Zhang
- College of Animal Sciences and Veterinary Medicines, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Rujie Yang
- College of Animal Science and Veterinary Medicine, Taiyuan, Shanxi 030024, PR China
| |
Collapse
|
25
|
Konyali C, Tomás C, Blanch E, Gómez E, Graham J, Mocé E. Optimizing conditions for treating goat semen with cholesterol-loaded cyclodextrins prior to freezing to improve cryosurvival. Cryobiology 2013; 67:124-31. [DOI: 10.1016/j.cryobiol.2013.06.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 05/10/2013] [Accepted: 06/03/2013] [Indexed: 11/25/2022]
|
26
|
Bathgate R, Mace N, Heasman K, Evans G, Maxwell WMC, de Graaf SP. Birth of kids after artificial insemination with sex-sorted, frozen-thawed goat spermatozoa. Reprod Domest Anim 2013; 48:893-8. [PMID: 23701168 DOI: 10.1111/rda.12182] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 04/15/2013] [Indexed: 11/29/2022]
Abstract
Successful sex-sorting of goat spermatozoa and subsequent birth of pre-sexed kids have yet to be reported. As such, a series of experiments were conducted to develop protocols for sperm-sorting (using a modified flow cytometer, MoFlo SX(®) ) and cryopreservation of goat spermatozoa. Saanen goat spermatozoa (n = 2 males) were (i) collected into Salamon's or Tris catch media post-sorting and (ii) frozen in Tris-citrate-glucose media supplemented with 5, 10 or 20% egg yolk in (iii) 0.25 ml pellets on dry ice or 0.25 ml straws in a controlled-rate freezer. Post-sort and post-thaw sperm quality were assessed by motility (CASA), viability and acrosome integrity (PI/FITC-PNA). Sex-sorted goat spermatozoa frozen in pellets displayed significantly higher post-thaw motility and viability than spermatozoa frozen in straws. Catch media and differing egg yolk concentration had no effect on the sperm parameters tested. The in vitro and in vivo fertility of sex-sorted goat spermatozoa produced with this optimum protocol were then tested by means of a heterologous ova binding assay and intrauterine artificial insemination of Saanen goat does, respectively. Sex-sorted goat spermatozoa bound to sheep ova zona pellucidae in similar numbers (p > 0.05) to non-sorted goat spermatozoa, non-sorted ram spermatozoa and sex-sorted ram spermatozoa. Following intrauterine artificial insemination with sex-sorted spermatozoa, 38% (5/13) of does kidded with 83% (3/5) of kids being of the expected sex. Does inseminated with non-sorted spermatozoa achieved a 50% (3/6) kidding rate and a sex ratio of 3 : 1 (F : M). This study demonstrates for the first time that goat spermatozoa can be sex-sorted by flow cytometry, successfully frozen and used to produce pre-sexed kids.
Collapse
Affiliation(s)
- R Bathgate
- Faculty of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
| | | | | | | | | | | |
Collapse
|
27
|
Jiménez-Rabadán P, Ramón M, García-Álvarez O, Maroto-Morales A, del Olmo E, Pérez-Guzmán M, Bisbal A, Fernández-Santos M, Garde J, Soler A. Effect of semen collection method (artificial vagina vs. electroejaculation), extender and centrifugation on post-thaw sperm quality of Blanca-Celtibérica buck ejaculates. Anim Reprod Sci 2012; 132:88-95. [DOI: 10.1016/j.anireprosci.2012.04.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 04/04/2012] [Accepted: 04/11/2012] [Indexed: 10/28/2022]
|
28
|
Waheed S, Ahmad N, Najib-ur-Rahman, Jamil-ur-Rahman H, Younis M, Iqbal S. Evaluation of duck egg yolk for the cryopreservation of Nili-Ravi buffalo bull semen. Anim Reprod Sci 2012; 131:95-9. [DOI: 10.1016/j.anireprosci.2012.02.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 12/30/2011] [Accepted: 02/28/2012] [Indexed: 11/28/2022]
|
29
|
Roof DJ, Bowley S, Price LL, Matsas DJ. Comparison of two commercial extenders for cryopreservation of goat semen without sperm washing. Theriogenology 2012; 77:412-20. [PMID: 21958627 DOI: 10.1016/j.theriogenology.2011.08.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Revised: 08/09/2011] [Accepted: 08/13/2011] [Indexed: 11/28/2022]
Abstract
The objective of this study was to evaluate the effects of two commercially available semen extenders on the motility of cryopreserved goat sperm and to simplify the cryopreservation protocol. Individual goat ejaculates were split and processed in parallel for freezing in either commercially available soy-based extender (Bioxcell®) or egg yolk-based extender (Irvine TYB). Sperm quality was assessed using total and progressive sperm motility, measured by computer-assisted sperm analysis (CASA). Total motility was higher for samples processed in soy-based extender, both at pre-freeze (P = 0.002) and at post-thaw (P < 0.0001). Progressive motility was higher for semen processed in soy extender at post-thaw (P < 0.0001). Approximately 10% of samples processed in egg yolk-based extender had a large (> 50%) reduction in total motility prior to freezing. However, this type of extreme reduction in pre-freeze motility did not occur in semen samples processed in soy extender. In addition, the use of soy-based extender eliminated the need for a time-consuming sperm washing protocol. We concluded that a commercially available soy-based extender was superior to an egg yolk-based extender in preserving motility of cryopreserved goat sperm, using a two-step method.
Collapse
Affiliation(s)
- D J Roof
- SVF Foundation, Newport, Rhode Island, USA.
| | | | | | | |
Collapse
|
30
|
Bispo C, Pugliesi G, Galvão P, Rodrigues M, Ker P, Filgueiras B, Carvalho G. Effect of low and high egg yolk concentrations in the semen extender for goat semen cryopreservation. Small Rumin Res 2011. [DOI: 10.1016/j.smallrumres.2011.05.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
31
|
Batista M, Niño T, Santana M, Alamo D, Castro N, Reyes R, González F, Cabrera F, Gracia A. Influence of the preservation temperature (37, 20, 4, -196°C) and the mixing of semen over sperm quality of Majorera bucks. Reprod Domest Anim 2011; 46:281-8. [PMID: 20565698 DOI: 10.1111/j.1439-0531.2010.01659.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
This study assessed the effect of different semen storage temperatures and the influence of semen pooling in semen viability. In experiment 1, semen samples (n = 30) of five Majorera bucks were individually processed [Individual semen (IS)] and after the first dilution (Tris-yolk extender), semen-diluted aliquots from each male were pooled semen (PS). Thereafter, semen samples (IS and PS) were preserved as fresh semen (37 and 20°C), chilled semen (4°C) and frozen semen. Sperm motility and the percentage of abnormal sperm cells and intact membrane acrosomes were defined. Semen preservation at 20 and 4°C did not modify the quality of spermatozoa for the first 24 h, but the conservation at 37°C caused a dramatic fall in the semen motility from 12 h onwards. Furthermore, the longevity of frozen-thawed semen was limited to 4-6 h. No differences were observed in semen parameters when PS was compared with semen from individual males in any of the preservation protocols assessed. In experiment 2, 120 goats were distributed in four experimental groups: in group fresh individual semen (FIS, n = 30) and group frozen-thawed individual semen (FTIS, n = 30), does were transcervically inseminated with fresh semen and frozen-thawed semen from each individual male, respectively, and in group fresh pooled semen (FPS, n = 30) and group frozen-thawed pooled semen (FTPS, n = 30), goats were transcervically inseminated with FPS and FTPS, respectively. The kidding rate was very close in the FIS and FPS groups (70.0% and 73.7%, respectively), and no significant differences were observed in the fertility rate between FTIS and FTPS. The results of this study confirmed that semen samples may be preserved satisfactorily for 24 h both at 20 and 4°C. In addition, the mixture of semen of different bucks did not significantly modify the semen parameters when compared with semen from individual males.
Collapse
Affiliation(s)
- M Batista
- Obstetrics and Reproduction Animal Science, Faculty of Veterinary of Las Palmas, Transmontaña S/n, Arucas, Spain.
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Zhao BT, Han D, Xu CL, Luo MJ, Chang ZL, Tan JH. Protocol optimization for long-term liquid storage of goat semen in a chemically defined extender. Reprod Domest Anim 2010; 44:865-72. [PMID: 19019070 DOI: 10.1111/j.1439-0531.2008.01101.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A specific problem in the preservation of goat semen has been the detrimental effect of seminal plasma on the viability of spermatozoa in extenders containing egg yolk or milk. The use of chemically defined extenders will have obvious advantages in liquid storage of buck semen. Our previous study showed that the self-made mZAP extender performed better than commercial extenders, and maintained a sperm motility of 34% for 9 days and a fertilizing potential for successful pregnancies for 7 days. The aim of this study was to extend the viability and fertilizing potential of liquid-stored goat spermatozoa by optimizing procedures for semen processing and storage in the mZAP extender. Semen samples collected from five goat bucks of the Lubei White and Boer breeds were diluted with the extender, cooled and stored at 5 degrees C. Stored semen was evaluated for sperm viability parameters, every 48 h of storage. Data from three ejaculates of different bucks were analysed for each treatment. The percentage data were arcsine-transformed before being analysed with anova and Duncan's multiple comparison test. While cooling at the rate of 0.1-0.25 degrees C/min did not affect sperm viability parameters, doing so at the rate of 0.6 degrees C/min from 30 to 15 degrees C reduced goat sperm motility and membrane integrity. Sperm motility and membrane integrity were significantly higher in semen coated with the extender containing 20% egg yolk than in non-coated semen. Sperm motility, membrane integrity and acrosomal intactness were significantly higher when coated semen was 21-fold diluted than when it was 11- or 51-fold diluted and when extender was renewed at 48-h intervals than when it was not renewed during storage. When goat semen coated with the egg yolk-containing extender was 21-fold diluted, cooled at the rate of 0.07-0.25 degrees C/min, stored at 5 degrees C and the extender renewed every 48 h, a sperm motility of 48% was maintained for 13 days, and an in vitro-fertilizing potential similar to that of fresh semen was maintained for 11 days.
Collapse
Affiliation(s)
- B-T Zhao
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, Shandong Province 271018, China
| | | | | | | | | | | |
Collapse
|
33
|
Dorado J, Muñoz-Serrano A, Hidalgo M. The effect of cryopreservation on goat semen characteristics related to sperm freezability. Anim Reprod Sci 2010; 121:115-23. [DOI: 10.1016/j.anireprosci.2010.04.182] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2009] [Revised: 04/09/2010] [Accepted: 04/19/2010] [Indexed: 10/19/2022]
|
34
|
Medrano A, Terrazas A, Soto R. Principles and perspectives for the conservation of goat buck spermatozoa. Small Rumin Res 2010. [DOI: 10.1016/j.smallrumres.2009.12.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
35
|
Xu CL, Zhou JB, Zhao BT, Lan GC, Luo MJ, Chang ZL, Sui HS, Tan JH. Liquid Storage of Goat Semen in Chemically Defined Extenders. Reprod Domest Anim 2009; 44:771-8. [DOI: 10.1111/j.1439-0531.2008.01071.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]
|
36
|
Andrabi SMH. Factors Affecting the Quality of Cryopreserved Buffalo (Bubalus bubalis) Bull Spermatozoa. Reprod Domest Anim 2009; 44:552-69. [DOI: 10.1111/j.1439-0531.2008.01240.x] [Citation(s) in RCA: 112] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
37
|
Cryopreservation of Spanish ibex (Capra pyrenaica) sperm obtained by electroejaculation outside the rutting season. Theriogenology 2009; 71:1253-60. [DOI: 10.1016/j.theriogenology.2008.12.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Revised: 12/17/2008] [Accepted: 12/29/2008] [Indexed: 11/24/2022]
|
38
|
Batista M, Niño T, Alamo D, Castro N, Santana M, González F, Cabrera F, Gracia A. Successful artificial insemination using semen frozen and stored by an ultrafreezer in the Majorera goat breed. Theriogenology 2009; 71:1307-15. [DOI: 10.1016/j.theriogenology.2008.12.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2008] [Revised: 12/18/2008] [Accepted: 12/29/2008] [Indexed: 10/21/2022]
|
39
|
Khalifa TAA, Lymberopoulos AG, El-Saidy BE. Testing Usability of Butylated Hydroxytoluene in Conservation of Goat Semen. Reprod Domest Anim 2008; 43:525-30. [DOI: 10.1111/j.1439-0531.2007.00947.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
40
|
Santiago-Moreno J, Toledano-Díaz A, Pulido-Pastor A, Gómez-Brunet A, López-Sebastián A. Birth of live Spanish ibex (Capra pyrenaica hispanica) derived from artificial insemination with epididymal spermatozoa retrieved after death. Theriogenology 2006; 66:283-91. [PMID: 16376980 DOI: 10.1016/j.theriogenology.2005.11.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2005] [Revised: 11/15/2005] [Accepted: 11/15/2005] [Indexed: 10/25/2022]
Abstract
As a consequence of increasing limitations to maintaining genetic variability in endangered wildlife species, methods of assisted reproduction widely used in domestic animals are being applied to nondomestic species. However, practical efforts have met limited success to date. The Spanish ibex (Capra pyrenaica hispanica) is a wild caprine originating exclusively in the mountains of Spain. This study was designed to evaluate the fertilizing capability of cryopreserved Spanish ibex epididymal spermatozoa recovered postmortem. For this purpose, we have previously evaluated the effect of time elapsed between death and sperm recovery on spermatic parameters, and the fertilization ability of frozen-thawed spermatozoa using heterologous in vivo fertilization by intrauterine insemination in domestic goat (Capra hircus). The time of death significantly affected most sperm quality parameters (motility, viability and intact acrosomes). The fertility obtained by heterologous artificial insemination was 18.7%, and only goats inseminated with spermatozoa recovered within 8h after death became pregnant. Our findings showed that heterologous in vivo fertilization is a useful method to evaluate the fertilizing capacity of sperm samples in rare or wild species. Sperm samples, with verified fertilization ability in the previous trial, were used to inseminate a total of six ibex females. Inseminations resulted in one pregnancy. The study demonstrated for the first time the feasibility of applying artificial insemination in Spanish ibex.
Collapse
Affiliation(s)
- Julián Santiago-Moreno
- Departamento de Reproducción Animal, Avda. Puerta de Hierro Km 5,9, INIA, 28040 Madrid, Spain.
| | | | | | | | | |
Collapse
|
41
|
Choe CY, Kim JG, Cho SR, Son DS, Kim YK, Balasubramanian S, Choe SY, Rho GJ. Influence of Seasons, Extenders, Slow and Rapid Freezing on Seminal Characters in Korean Native Bucks. Reprod Domest Anim 2006; 41:55-60. [PMID: 16420329 DOI: 10.1111/j.1439-0531.2006.00652.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The success of AI technology is based on both semen quality and freezing process. In order to establish the semen freezing techniques in Korean native bucks, factors affecting the success were evaluated in the present study. Semen collected by electro-ejaculation from bucks during four distinct seasons was evaluated for semen volume and pH, sperm motility and survivability. The semen volume, concentration and total cell were higher in spring, summer and less in winter. Yet, there were no seasonal differences in the proportional data of live sperm, motility score and pH of semen among seasons. The percentage of live sperm after thawing was found to increase with increased concentration of lactose in Tris-Egg yolk-glycerol (TY-G), being highest in TY-G supplemented with 180 mm lactose (TYL180-G), but did not differ between TY-G and TYL120-G. Sperm motility was enhanced by employing 2.0 h equilibration time with rapid freezing method. In conclusion, semen could be frozen with high success rates for further use of AI in breeding techniques and to preserve the Korean native bucks.
Collapse
Affiliation(s)
- Chang-Yong Choe
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Gazwa, Chinju, Republic of Korea
| | | | | | | | | | | | | | | |
Collapse
|