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Lv C, Larbi A, Li C, Liang J, Wu G, Shao Q, Quan Q. Decoding the influence of semen collection processes on goat sperm quality from a perspective of seminal plasma proteomics. J Proteomics 2024; 298:105141. [PMID: 38408605 DOI: 10.1016/j.jprot.2024.105141] [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: 11/13/2023] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
This study aims to assess the impact of semen collection methods on goat semen quality and seminal plasma (SP) proteomes. Semen was collected by artificial vagina (AV) or electro-ejaculator (EE) and semen parameters were evaluated. Tandem mass tag coupled with liquid chromatography-tandem mass spectrometry was used to screen SP differentially abundant proteins (DAPs) between EE and AV. PRM was used to confirm the reliability of the data. In contrast to EE, a lower volume, higher progressive motility and concentration were observed in AV. No differences were found in total motility, membrane integrity, acrosome integrity, and ROS production between EE and AV. In total, 1692 proteins were identified in SP, including 210 DAPs. Among them, 120 and 90 proteins were down-regulated and up-regulated in AV compared to EE, respectively. The GO annotation showed that DAPs are mainly localized in the membrane, involved in deference responses to bacterium, RNA processing, and related to oxidoreductase activity. KEGG demonstrated tight associations of DAPs with specific amino acids, carbon metabolism, citrate cycle, and propanoate metabolism. In conclusion, this study provides valuable insights into the effects of semen collection on goat semen quality and explores the potential action mechanism based on the modification of SP proteomes. SIGNIFICANCE OF THE STUDY: The quality of fresh semen directly influences the results of artificial insemination and semen cryopreservation in livestock. This study represents the first attempt to evaluate the impact of semen collection methods including electroejaculation and artificial vagina on sperm quality and seminal plasma proteomes in goat. The results of this study demonstrated that semen collection methods directly impacted the quality of goat semen. Then, the proteomic strategy was used to explore the potential action mechanism of semen collection methods on sperm. Some differentially abundant proteins that potentially influence semen quality were identified. Furthermore, this study suggests the possibility of utilizing specific proteins as predictive markers for goat semen quality.
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Affiliation(s)
- Chunrong Lv
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Engineering Research Center of Animal Genetic Resource Conservation and Germplasm Enhancement, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Panlong District, Kunming City, Yunnan Province, China
| | - Allai Larbi
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong District, Kunming City, Yunnan Province, China; Laboratory of Sustainable Agriculture Management, Higher School of Technology Sidi Bennour, Chouaib Doukkali University El Jadida, Morocco
| | - Chunyan Li
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Engineering Research Center of Animal Genetic Resource Conservation and Germplasm Enhancement, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Panlong District, Kunming City, Yunnan Province, China
| | - Jiangchong Liang
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Engineering Research Center of Animal Genetic Resource Conservation and Germplasm Enhancement, Panlong District, Kunming City, Yunnan Province, China
| | - Guoquan Wu
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Engineering Research Center of Animal Genetic Resource Conservation and Germplasm Enhancement, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Panlong District, Kunming City, Yunnan Province, China
| | - Qingyong Shao
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Panlong District, Kunming City, Yunnan Province, China
| | - Quobo Quan
- Yunnan Animal Science and Veterinary Institute, Jindian, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Engineering Research Center of Animal Genetic Resource Conservation and Germplasm Enhancement, Panlong District, Kunming City, Yunnan Province, China; Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Panlong District, Kunming City, Yunnan Province, China.
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Araya-Zúñiga I, Sevilla F, Molina-Montero R, Roldan ERS, Barrientos-Morales M, Silvestre MA, Valverde A. Kinematic and Morphometric Assessment of Fresh Semen, before, during and after Mating Period in Brahman Bulls. Animals (Basel) 2023; 14:132. [PMID: 38200863 PMCID: PMC10778289 DOI: 10.3390/ani14010132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
The objective of the present study was to determine the effects that the reproductive season has on the motility, kinematics, morphology, and sperm morphometry of Brahman bulls evaluated with a commercial CASA system. The experiment was carried out at the Costa Rica Institute of Technology from March to August 2021. A total of eight Brahman bulls were used. A total of 28 ejaculates were collected in the pre-mating period (PMP), during it (DMP), and after it (AMP) using an electroejaculator. The sperm concentration was measured with the Accuread photometer. The motility was measured using a Spermtrack® counting chamber. The analyses were performed with the CASA-Mot ISAS®v1 system. The morphology was analyzed using a microscope with a negative phase contrast objective. Morphometry was evaluated with the CASA-Morph. The sperm concentration did not present differences between the PMP and AMP; however, it was significantly higher than DMP (p > 0.05). Regarding the progressiveness variables, linearity on forward progression (LIN), straightness (STR), and wobble (WOB) were higher (p < 0.05) DMP. A kinematic principal component analysis grouped all the variables into three factors and an effect on the reproductive period was found (p < 0.05) in the parameters of the head and middle part of the sperm, such as width and perimeter, which were greater in the PMP. The length of the sperm head in the PMP and DMP did not show differences; however, both were larger (p < 0.05) than AMP. The insertion distance of the middle piece of the sperm was significantly greater than DMP. Finally, the PMP contained cells with a larger insertion angle (p < 0.05) than AMP. These findings are important to understand the implications of reproductive status on sperm quality and to consider them in andrological evaluations.
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Affiliation(s)
- Ignacio Araya-Zúñiga
- Laboratory of Animal Reproduction, School of Agronomy, Costa Rica Institute of Technology, San Carlos Campus, Alajuela 223-21002, Costa Rica; (I.A.-Z.); (F.S.); (R.M.-M.)
| | - Francisco Sevilla
- Laboratory of Animal Reproduction, School of Agronomy, Costa Rica Institute of Technology, San Carlos Campus, Alajuela 223-21002, Costa Rica; (I.A.-Z.); (F.S.); (R.M.-M.)
- Natural Sciences for Development (DOCINADE), Costa Rica Institute of Technology, San Carlos Campus, Alajuela 223-21002, Costa Rica
| | - Rafael Molina-Montero
- Laboratory of Animal Reproduction, School of Agronomy, Costa Rica Institute of Technology, San Carlos Campus, Alajuela 223-21002, Costa Rica; (I.A.-Z.); (F.S.); (R.M.-M.)
| | - Eduardo R. S. Roldan
- Department of Biodiversity and Evolutionary Biology, National Museum of Natural Sciences, Spanish National Research Council (CSIC), 28006 Madrid, Spain;
| | - Manuel Barrientos-Morales
- Laboratory of Reproductive Biology, School of Veterinary Medicine and Animal Science, University of Veracruz, Veracruz CP 91710, Mexico;
| | - Miguel A. Silvestre
- Department of Cellular Biology, Functional Biology and Physical Anthropology, Campus Burjassot, University of Valencia, C/Dr Moliner 50, 46100 Burjassot, Spain
| | - Anthony Valverde
- Laboratory of Animal Reproduction, School of Agronomy, Costa Rica Institute of Technology, San Carlos Campus, Alajuela 223-21002, Costa Rica; (I.A.-Z.); (F.S.); (R.M.-M.)
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3
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Ramírez-López CJ, Barros E, Vidigal PMP, Silva Okano D, Duarte Rodrigues JN, Lopes Gomes L, Montes-Vergara JC, Petro Hernandez VG, Baracat-Pereira MC, Guimarães SEF, Guimarães JD. Relative Abundance of Spermadhesin-1 in the Seminal Plasma of Young Nellore Bulls Is in Agreement with Reproductive Parameters. Vet Sci 2023; 10:610. [PMID: 37888562 PMCID: PMC10611397 DOI: 10.3390/vetsci10100610] [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: 07/31/2023] [Revised: 09/05/2023] [Accepted: 09/12/2023] [Indexed: 10/28/2023] Open
Abstract
This study aimed to evaluate the proteomic profile of seminal plasma from young Nellore bulls. We used 20 bulls aged between 19.8 and 22.7 months, divided into two groups according to the results of the Breeding Soundness Evaluation (BSE): approved (FIT n = 10) and not approved (UNFIT n = 10). The scrotal perimeter was measured and a semen collection was performed through electroejaculation. The percentage of sperm motility, mass motility, and sperm vigor were calculated using conventional microscopy, and the percentage of sperm abnormalities was calculated using phase-contrast microscopy of all ejaculates. Seminal plasma was separated from spermatozoa using centrifugation and processed for proteomic analysis by LC-MS/MS. Seminal plasma proteins were identified using MASCOT Daemon software v.2.4.0 and label-free quantification analysis was carried out by SCAFFOLD Q+ software v.4.0 using the Exponentially Modified Protein Abundance Index (emPAI) method. Functional classification of proteins was performed based on their genetic ontology terms using KOG. Functional cluster analysis was performed on DAVID. There were no differences in scrotal perimeter and physical semen characteristics between FIT and UNFIT groups of bulls. The percentage of sperm abnormalities was higher (p < 0.05) in the UNFIT group of bulls. A total of 297 proteins were identified for the two groups. There were a total of 11 differentially abundant proteins (p < 0.05), two of them more abundant in FIT bulls (Spermadhesin-1 and Ig gamma-1 chain C region) and nine in UNFIT bulls (Vasoactive intestinal peptide, Metalloproteinase inhibitor 2, Ig lambda-1 chain C regions, Protein FAM3C, Hemoglobin beta, Seminal ribonuclease, Spermadhesin 2, Seminal plasma protein BSP-30kDa, and Spermadhesin Z13). Spermadhesin-1 was the protein with the highest relative abundance (36.7%) in the seminal plasma among all bulls, corresponding to 47.7% for the FIT bulls and 25,7% for the UNFIT bulls. Posttranslational modification, protein turnover, and chaperones were the functional categories with the highest number of classified proteins. Protein functional annotation clusters were related to Phospholipid efflux, ATP binding, and chaperonin-containing T-complex. The differentially abundant proteins in the group of FIT bulls were related to sperm capacitation and protection against reactive species of oxygen. In contrast, differentially expressed proteins in the group of UNFIT bulls were related to motility inhibition, intramembrane cholesterol removal and oxidative stress. In conclusion, the proteomic profile of the seminal plasma of FIT bulls presents proteins with participation in several biological processes favorable to fertilization, while the proteins of the seminal plasma of UNFIT bulls indicate a series of alterations that can compromise the fertilizing capacity of the spermatozoa. In addition, the relative abundance of spermadhesin-1 found in the seminal plasma of young Nellore bulls could be studied as a reproductive parameter for selection.
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Affiliation(s)
- Camilo José Ramírez-López
- Laboratory of Animal Reproduction, Department of Veterinary Medicine, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil; (D.S.O.); (J.N.D.R.); (L.L.G.); (J.D.G.)
- Department of Animal Science, Universidad de Córdoba, Monteria 230002, Colombia;
- Laboratory of Proteomics and Protein Biochemistry, Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil;
| | - Edvaldo Barros
- Nucleus for Analysis of Biomolecules, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil; (E.B.); (P.M.P.V.)
| | - Pedro Marcus Pereira Vidigal
- Nucleus for Analysis of Biomolecules, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil; (E.B.); (P.M.P.V.)
| | - Denise Silva Okano
- Laboratory of Animal Reproduction, Department of Veterinary Medicine, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil; (D.S.O.); (J.N.D.R.); (L.L.G.); (J.D.G.)
| | - Juliana Nascimento Duarte Rodrigues
- Laboratory of Animal Reproduction, Department of Veterinary Medicine, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil; (D.S.O.); (J.N.D.R.); (L.L.G.); (J.D.G.)
| | - Lidiany Lopes Gomes
- Laboratory of Animal Reproduction, Department of Veterinary Medicine, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil; (D.S.O.); (J.N.D.R.); (L.L.G.); (J.D.G.)
| | | | | | - Maria Cristina Baracat-Pereira
- Laboratory of Proteomics and Protein Biochemistry, Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil;
| | - Simone Eliza Facioni Guimarães
- Laboratory of Animal Biotechnology, Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil;
| | - José Domingos Guimarães
- Laboratory of Animal Reproduction, Department of Veterinary Medicine, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil; (D.S.O.); (J.N.D.R.); (L.L.G.); (J.D.G.)
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Yoelinda VT, Arifiantini RI, Solihin DD, Agil M, Setiadi DR, Maulana T, Purwantara B, Hastuti YT, Manansang J, Sajuthi D. Correlation between Post-Thaw Spermatozoa Quality of the Endangered Javan Banteng with OPN Gene Expression. Vet Med Int 2023; 2023:9982422. [PMID: 37448586 PMCID: PMC10338126 DOI: 10.1155/2023/9982422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/09/2023] [Accepted: 05/22/2023] [Indexed: 07/15/2023] Open
Abstract
The role of ex situ conservation facilities or captivity through captive breeding programs is essential in the conservation of the endangered Javan banteng. The development of semen cryopreservation may assist on one side of the conservation plan. However, the male Javan banteng reproductive capability must be considered as it influences the targeted outputs. Studying the potential biomarker for fertility such as osteopontin gene expression is also expected to help predict male fertility. Therefore, this study aimed to analyze the quality of spermatozoa after thawing to help predict the male reproductive capability of Javan banteng. Furthermore, this study investigated the potential role of osteopontin gene expression in male Javan banteng fertility. A positive reinforcement approach was used to accustom the male and female animals as we focused on establishing a collection procedure using neither sedation nor anaesthesia. Semen samples were collected at Taman Safari Indonesia, Bogor, in accordance with the female banteng receptivity. Semen samples were then evaluated and then cryopreserved under field conditions. Our study showed the different predicted reproductive capability of the Javan banteng based on the post-thaw spermatozoa quality, which showed significant differences. The OPN gene showed positive correlations with the progressive motility (r = 0.711, p = 0.048), viability (r = 0.822, p = 0.012), and acrosomal integrity (r = 0.665, p = 0.072) of Javan banteng spermatozoa after thawing. Our study demonstrated the predicted Javan banteng reproductive capability based on various post-thaw spermatozoa variables. This finding is also the first report on the OPN gene potential to be developed as the assessment tool of post-thaw spermatozoa quality of the male Javan banteng. The findings in our study may help give recommendations for future breeding programs, especially in the ex situ conservation sites.
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Affiliation(s)
- Vincentia Trisna Yoelinda
- Study Program of Reproductive Biology, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, West Java 16680, Indonesia
- Department of Physiology, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Raden Iis Arifiantini
- Division of Reproduction and Obstetrics, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, West Java 16680, Indonesia
| | | | - Muhammad Agil
- Division of Reproduction and Obstetrics, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, West Java 16680, Indonesia
| | - Dedi Rahmat Setiadi
- Division of Reproduction and Obstetrics, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, West Java 16680, Indonesia
| | - Tulus Maulana
- Research Centre of Applied Zoology, National Research and Innovation Agency, Cibinong, Bogor, West Java 16911, Indonesia
| | - Bambang Purwantara
- Division of Reproduction and Obstetrics, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, West Java 16680, Indonesia
| | - Yohana Tri Hastuti
- Taman Safari Indonesia Bogor, Cisarua, Bogor, West Java 16750, Indonesia
| | - Jansen Manansang
- Taman Safari Indonesia Bogor, Cisarua, Bogor, West Java 16750, Indonesia
| | - Dondin Sajuthi
- Division of Internal Medicine, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, West Java 16680, Indonesia
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5
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Fernandez-Fuertes B. Review: The role of male reproductive tract secretions in ruminant fertility. Animal 2023; 17 Suppl 1:100773. [PMID: 37567680 DOI: 10.1016/j.animal.2023.100773] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 08/13/2023] Open
Abstract
Male fertility largely depends on the ability to produce sperm that can transmit the paternal information onto the next generation. However, the factors that are critical for sperm function and the subsequent development of healthy offspring are still not completely understood in ruminants. Importantly, sperm function is not completely encoded by germ cell DNA, but rather, depends on sequential acquisition, loss, and modification of elements through interaction with secretions from the testes, epididymides, and accessory glands (collectively termed seminal plasma). In addition, these secretions can play a role in the inheritance of paternal environmental effects by progeny. This is likely achieved directly, by the regulation of sperm epigenetic effectors, and indirectly, by altering the female environment in which the individual develops. This review will provide an overview of the different organs that contribute to seminal plasma in ruminants, and summarise how their secretions shape sperm function and modulate the female reproductive tract. Finally, some consideration will be given to the potential of paternal factors to affect embryo development and offspring health in ruminants.
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Affiliation(s)
- B Fernandez-Fuertes
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Spanish National Research Council (CSIC), Madrid, Spain.
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Viana AGDA, Ribeiro IM, Carvalho RPR, Memili E, Moura ADA, Machado-Neves M. Contributions of seminal plasma proteins to fertilizing ability of bull sperm: A meta-analytical review. Andrologia 2022; 54:e14615. [PMID: 36261879 DOI: 10.1111/and.14615] [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: 01/11/2022] [Revised: 08/02/2022] [Accepted: 10/02/2022] [Indexed: 11/29/2022] Open
Abstract
Seminal plasma is a dynamic, intricate combination of fluids from the testicles, epididymides, seminal vesicles, bulbourethral glands, and prostate, containing molecules that modulate sperm functions, post-fertilization events, and the female reproductive tract physiology. Significant variations in sperm parameters and fertility status of bulls relate to differences in the seminal plasma proteome. In this framework, a meta-analytical study was conducted examining 29 studies (published between 1990 and 2021) to ascertain the effects of seminal fluid proteins on parameters associated with bull fertility and the influence of distinct methodologies on such effects. Our results revealed that seminal proteins ameliorate sperm parameters, such as motility, integrity, capacitation, and fertilizing ability, and favours sperm protection. Seminal binder of sperm proteins and beta-defensin 126 highly favoured sperm protection when cells were collected from the epididymis by retrograde flux and analysed under room temperature conditions. Furthermore, seminal proteins improved the motility and quality of Bos taurus sperm collected by artificial vagina, mainly in the presence of heparin-binding proteins. The key limitations faced by this meta-analysis were the paucity of studies evaluating the effects of whole seminal fluid proteins and the limited number of studies conducted in vivo. In conclusion, the present meta-analytical study confirms that seminal proteins improve fertility-related parameters in the bovine species. However, methodological strategies used by authors are diverse, with distinct endpoints and methods. Thus, the translational aspects of seminal plasma research should be taken into consideration to precisely define how seminal proteins can be harnessed to advance reproductive biotechnology.
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Affiliation(s)
| | | | | | - Erdogan Memili
- Cooperative Agricultural Research Center, College of Agriculture and Human Sciences, Prairie View A&M University, Prairie View, Texas, USA
| | | | - Mariana Machado-Neves
- Departamento de Medicina Veterinária, Universidade Federal de Viçosa, Viçosa, Brasil.,Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brasil
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Nadaf SM, Ramesh V, Mech M, Haider Khan M, Ahmed FA, Ponraj P, Mitra A. Comparative ejaculatory response, fresh and frozen semen quality and fertility to artificial vagina vs electroejaculation method of semen collection in mithun (Bos frontalis) bulls. Andrologia 2021; 54:e14330. [PMID: 34859457 DOI: 10.1111/and.14330] [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: 06/21/2021] [Revised: 11/12/2021] [Accepted: 11/17/2021] [Indexed: 11/29/2022] Open
Abstract
The study aimed to describe a comparative ejaculatory response, fresh and frozen-thawed semen quality and fertility of semen collected by artificial vagina and electroejaculation in mithun. Experimental bulls were divided into two groups, G-I: young bulls (n = 4; 4-5 years of age) and G-II: older bulls (n = 4; 8-10 years of age). Sixteen ejaculates were collected from each group G-I (AV1 ) and G-II (AV2 ) by artificial vagina method (control). Thirty-six ejaculates were collected from the same bulls from each group G-I (EE1 ) and G-II (EE2 ) by electroejaculation method (treatment). The study did not reveal any significant (p > 0.05) difference in the ejaculatory responses between EE1 and EE2 . Mann-Whitney U test indicated that salivation discomfort sign score was significantly (p < 0.05) higher in EE1 . Fresh and frozen-thawed semen quality parameters, and motility and velocity profiles recorded by computer-assisted sperm analyser were significantly (p < 0.05) lower in electroejaculation than the artificial vagina. The conception rates (AV1 vs EE1 & AV2 vs EE2 ) at day 35-45 post insemination were nonsignificantly higher (p > 0.05) in the artificial vagina group. It concluded that, although artificial vagina method has better semen quality, nevertheless, electroejaculation has the potential for semen collection from free-range mithun bulls to incorporate in assisted reproductive technology procedures.
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Affiliation(s)
- Saddamhusen Mabusab Nadaf
- Animal Physiology and Reproduction, ICAR-National Research Centre on Mithun, Medziphema, Nagaland, India
| | - Vikram Ramesh
- Animal Physiology and Reproduction, ICAR-National Research Centre on Mithun, Medziphema, Nagaland, India
| | - Moonmoon Mech
- Animal Physiology and Reproduction, ICAR-National Research Centre on Mithun, Medziphema, Nagaland, India
| | - Meraj Haider Khan
- Animal Physiology and Reproduction, ICAR-National Research Centre on Mithun, Medziphema, Nagaland, India
| | - Fazal Ali Ahmed
- Animal Reproduction, Gynecology and Obstetrics, College of Veterinary Sciences & Animal Husbandry, CAU, Selesih, Aizawl, India
| | - Perumal Ponraj
- Animal Reproduction and Gynaecology, ICAR-Central Island Agricultural Research Institute, Port Blair, India
| | - Abhijit Mitra
- Animal Genetics and Breeding, ICAR-Central Institute for Research on Cattle, Meerut Cantt, Uttar Pradesh, India
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8
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CRISP protein expression in semen of the endangered Malayan tapir (Tapirus indicus). Theriogenology 2021; 172:106-115. [PMID: 34153566 DOI: 10.1016/j.theriogenology.2021.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 05/08/2021] [Accepted: 06/06/2021] [Indexed: 11/20/2022]
Abstract
The Malayan tapir is a large endangered herbivore native to South-east Asia with fewer than 2500 animals remaining in the wild. Although a small number of animals (183 animals held by 60 institutions) are managed in zoos and breeding centres, there is limited information on the fundamental reproductive biology of this species. The purpose of this present study was to evaluate the associations of reproductive protein biomarkers (CRISP2 and CRISP3) in the seminal plasma and spermatozoa with reproductive characteristics in male Malayan tapirs. Ejaculates were collected from zoo-housed animals by electroejaculation and assessed for sperm motility and quality traits. Seminal plasma and sperm pellets were analysed for CRISP protein expression by immunoblotting. The reproductive tract of a single animal was also analysed for CRISP2 and CRISP3 protein expression and localization by immunohistochemistry. Our results showed that both CRISP2 and CRISP3 are expressed in the seminal plasma and spermatozoa derived from Malayan tapirs. CRISP expression was positively correlated with semen quality, especially ejaculate volume, number of motile sperm, and acrosomal integrity. In addition, CRISP2 and CRISP3 protein expression were slightly high in males that had recently sired an offspring. The results suggest that CRISP proteins may serve as biomarkers for ejaculate quality and fertility in male Malayan tapirs. These findings may have significant implications for planning future breeding and re-introduction efforts for this species.
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9
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Ibrahim LA, Rizo JA, Fontes PLP, Lamb GC, Bromfield JJ. Seminal plasma modulates expression of endometrial inflammatory meditators in the bovine†. Biol Reprod 2020; 100:660-671. [PMID: 30329018 DOI: 10.1093/biolre/ioy226] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/15/2018] [Accepted: 10/15/2018] [Indexed: 12/27/2022] Open
Abstract
Seminal plasma has conventionally been viewed as a transport and survival medium for mammalian sperm; however, its role now extends beyond this process to actively targeting female tissues. Studies in rodents, swine, and humans demonstrate that seminal plasma induces molecular and cellular changes within the endometrium or cervix following insemination. Seminal-plasma-induced alterations to the maternal environment have been theorized to facilitate embryo development, modulate maternal immunity toward the conceptus, and potentially improve pregnancy success. It is unknown if bovine seminal plasma modulates the uterine environment following insemination in the cow, where routine use of artificial insemination reduces maternal exposure to seminal plasma. We hypothesize that seminal plasma modulates the expression of inflammatory mediators in the endometrium, altering the maternal environment of early pregnancy. In vitro, seminal plasma altered intact endometrial explant expression of CSF2, IL1B, IL6, IL17A, TGFB1, IFNE, PTGS2, and AKR1C4. Furthermore, endometrial epithelial cell CSF2, CXCL8, TGFB1, PTGS2, and AKR1C4 expression were increased after seminal plasma exposure, while endometrial stromal cell CSF2, IL1B, IL6, CXCL8, IL17A, TGFB1, PTGS2, and AKR1C4 expression were increased following seminal plasma exposure. Endometrial expression of IL1B was increased in the cow 24 h after uterine infusion of seminal plasma, while other evaluated inflammatory mediators remained unchanged. These data indicate that seminal plasma may induce changes in the bovine endometrium in a temporal manner. Understanding the role of seminal plasma in modulating the maternal environment may aid in improving pregnancy success in cattle.
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Affiliation(s)
- Laila A Ibrahim
- Department of Animal Sciences, University of Florida, Gainesville, Florida, USA
| | - Jason A Rizo
- Department of Animal Sciences, University of Florida, Gainesville, Florida, USA
| | - Pedro L P Fontes
- Department of Animal Science, Texas A&M University, College Station, Texas, USA
| | - G Cliff Lamb
- Department of Animal Science, Texas A&M University, College Station, Texas, USA
| | - John J Bromfield
- Department of Animal Sciences, University of Florida, Gainesville, Florida, USA
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Mateo-Otero Y, Sánchez JM, Recuero S, Bagés-Arnal S, McDonald M, Kenny DA, Yeste M, Lonergan P, Fernandez-Fuertes B. Effect of Exposure to Seminal Plasma Through Natural Mating in Cattle on Conceptus Length and Gene Expression. Front Cell Dev Biol 2020; 8:341. [PMID: 32478076 PMCID: PMC7235327 DOI: 10.3389/fcell.2020.00341] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/20/2020] [Indexed: 12/20/2022] Open
Abstract
A growing body of evidence suggests that paternal factors have an impact on offspring development. These studies have been mainly carried out in mice, where seminal plasma (SP) has been shown to regulate endometrial gene expression and impact embryo development and subsequent offspring health. In cattle, infusion of SP into the uterus also induces changes in endometrial gene expression, however, evidence for an effect of SP on early embryo development is lacking. In addition, during natural mating, the bull ejaculates in the vagina; hence, it is not clear whether any SP reaches the uterus in this species. Thus, the aim of the present study was to determine whether SP exposure leads to improved early embryo survival and developmental rates in cattle. To this end, Day 7 in vitro produced blastocysts were transferred to heifers (12-15 per heifer) previously mated to vasectomized bulls (n = 13 heifers) or left unmated (n = 12 heifers; control). At Day 14, heifers were slaughtered, and conceptuses were recovered to assess size, morphology and expression of candidate genes involved in different developmental pathways. Additionally, CL volume at Day 7, and weight and volume of CL at Day 14 were recorded. No effect of SP on CL volume and weight not on conceptus recovery rate was observed. However, filamentous conceptuses recovered from SP-exposed heifers were longer in comparison to the control group and differed in expression of CALM1, CITED1, DLD, HNRNPDL, PTGS2, and TGFB3. In conclusion, data indicate that female exposure to SP during natural mating can affect conceptus development in cattle. This is probably achieved through modulation of the female reproductive environment at the time of mating.
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Affiliation(s)
- Yentel Mateo-Otero
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
| | - José María Sánchez
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Sandra Recuero
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
| | - Sandra Bagés-Arnal
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Michael McDonald
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - David A. Kenny
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc Grange, Dunsany, Ireland
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
| | - Pat Lonergan
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Beatriz Fernandez-Fuertes
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, Girona, Spain
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11
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Boe-Hansen GB, Rêgo JPA, Satake N, Venus B, Sadowski P, Nouwens A, Li Y, McGowan M. Effects of increased scrotal temperature on semen quality and seminal plasma proteins in Brahman bulls. Mol Reprod Dev 2020; 87:574-597. [PMID: 32083367 DOI: 10.1002/mrd.23328] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/03/2020] [Indexed: 12/15/2022]
Abstract
Environmental temperature has effects on sperm quality with differences in susceptibility between cattle subspecies and breeds, but very little is known about the seminal plasma protein (SPP) changes resulting from testicular heat stress. Scrotal insulation (SI) for 48 hr was applied to Brahman (Bos indicus) bulls. Semen was collected at 3-day intervals from before, until 74 days post-SI. The changes in sperm morphology and motility following SI were comparable to previously reported and differences were detected in measures of sperm chromatin conformation as early as 8 days post-SI. New proteins spots, in the SPP two-dimensional (2-D) gels, were apparent when comparing pre-SI with 74 days post-SI, and SPP identified as associated with mechanisms of cellular repair and protection. Similar trends between 2-D gel and Sequential Window Acquisition of All Theoretical Mass Spectra (SWATH-MS) data was observed, with SWATH-MS able to quantify individual SPP that otherwise were not resolved on 2-D gel. The SPP assessment at peak sperm damage (21-24 days) showed a significant difference in 29 SPP (adjusted p < .05), and identified six proteins with change in abundance in the SI group. In conclusion both spermatozoa and SPP composition of bulls are susceptible to temperature change incurred by SI, and SPP markers for testicular heat insults may be detected.
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Affiliation(s)
- Gry Brandt Boe-Hansen
- School of Veterinary Science, The University of Queensland, Brisbane, QLD, Australia
| | - João Paulo A Rêgo
- Federal Institute of Education, Science and Technology of Ceará, Boa Viagem Campus, Fortaleza, Brazil
| | - Nana Satake
- School of Agriculture and Food Sciences, The University of Queensland, St. Lucia, QLD, Australia
| | - Bronwyn Venus
- Agri-Science Department of Agriculture, Fisheries and Forestry, Brisbane, QLD, Australia
| | - Pawel Sadowski
- Central Analytical Research Facility, Queensland University of Technology, Brisbane, QLD, Australia
| | - Amanda Nouwens
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD, Australia
| | - Yutao Li
- CSIRO Agriculture and Food, St. Lucia, QLD, Australia
| | - Michael McGowan
- School of Veterinary Science, The University of Queensland, Brisbane, QLD, Australia
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12
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Fernandez-Fuertes B, Sánchez JM, Bagés-Arnal S, McDonald M, Yeste M, Lonergan P. Species-specific and collection method-dependent differences in endometrial susceptibility to seminal plasma-induced RNA degradation. Sci Rep 2019; 9:15072. [PMID: 31636362 PMCID: PMC6803643 DOI: 10.1038/s41598-019-51413-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 10/01/2019] [Indexed: 12/18/2022] Open
Abstract
This study aimed to determine the effect of bull seminal plasma (SP) and sperm on endometrial function. Bovine endometrial explants were incubated with: ejaculated sperm with or without SP, epididymal sperm, or SP alone. Neither ejaculated nor epididymal sperm induced differential expression of IL1A, IL1B, IL6, IL8, PTGES2, TNFA, and LIF. Interestingly, SP had a detrimental effect on endometrial RNA integrity. Addition of an RNase inactivation reagent to SP blocked this effect, evidencing a role for a SP-RNase. Because bulls deposit the ejaculate in the vagina, we hypothesized that the bovine endometrium is more sensitive to SP-RNase than vaginal and cervical tissues (which come into contact with SP during mating), or to endometrium from intrauterine ejaculators (such as the horse). In addition, due to differences in SP-RNase abundance depending on SP collection method (i.e., with an artificial vagina, AV, or by electroejaculation, EE), this effect was also tested. Bull SP, collected by AV, degrades RNA of mare endometrium, and bovine vagina, cervix and endometrium. However, stallion SP or bull SP collected by EE did not elicit this effect. Thus, results do not support a role for SP in modulating endometrial function to establish pregnancy in cattle.
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Affiliation(s)
- Beatriz Fernandez-Fuertes
- Department of Biology, Faculty of Sciences, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain.
| | - José María Sánchez
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - Sandra Bagés-Arnal
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - Michael McDonald
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - Marc Yeste
- Department of Biology, Faculty of Sciences, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Pat Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
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13
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Fu Q, Pan L, Huang D, Wang Z, Hou Z, Zhang M. Proteomic profiles of buffalo spermatozoa and seminal plasma. Theriogenology 2019; 134:74-82. [DOI: 10.1016/j.theriogenology.2019.05.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 05/12/2019] [Accepted: 05/14/2019] [Indexed: 01/05/2023]
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14
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Stewart JL, Canisso IF, Podico G, Kaplan C, Garrett EF, Shike DW, Henley P, Lima FS. Nerve growth factor-β effects on post-thaw bull semen quality: Effects of nerve growth factor-β added to extenders for cryopreservation of electro-ejaculated and epididymal bull semen. Anim Reprod Sci 2019; 207:107-117. [PMID: 31204090 DOI: 10.1016/j.anireprosci.2019.06.010] [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: 01/25/2019] [Revised: 05/24/2019] [Accepted: 06/10/2019] [Indexed: 10/26/2022]
Abstract
Nerve growth factor-β (NGF) is a seminal plasma protein associated with improved sperm membrane integrity and motility in mammalian species. The objective of this study was to compare post-thaw semen quality from both ejaculated and pididymal-collected bull sperm incubated with purified NGF prior to cryopreservation. Semen was obtained from Angus × Simmental crossbred bulls (n = 10) collected by electroejaculation, followed by castration and epididymal sperm collections 3 days later. Semen samples were incubated with extender having 0 ng/mL (CONT), 0.5 ng/mL (LOW), 5 ng/mL (MED), or 50 ng/mL (HIGH) of purified NGF prior to cryopreservation. Sperm motility was assessed in each sample prior to treatment and cryopreservation and at post-thaw. Flow cytometry was used for post-thaw assessment of sperm viability (SYBR-14/PI), acrosome integrity (FITC-PNA/PI), and chromatin stability (acridine orange). Values for post-thaw sperm motility and velocity variables were decreased, while linearity was increased in samples of the HIGH compared with CONT group (P < 0.01), but there were no differences in epididymal samples (P> 0.05). Samples from the HIGH group also had a lesser amplitude of lateral head displacement at 2.5 and 3 h post-thaw (P < 0.01). Post-thaw sperm viability, acrosome integrity, and DNA fragmentation index were not affected by NGF treatment in either ejaculated or epididymal sperm (P> 0.05). In conclusion, supplementation of freezing extender with NGF had minimal effects on post-thaw sperm quality in bulls. Results indicate NGF may have a function in preventing premature sperm hyperactivation in ejaculated, but not epididymal-collected spermatozoa. Fertility studies, both in vitro and in vivo, are warranted to ascertain the relevancy of these findings.
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Affiliation(s)
- Jamie L Stewart
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, USA
| | - Igor F Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, USA
| | - Giorgia Podico
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, USA
| | - Claire Kaplan
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, USA
| | - Edgar F Garrett
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, USA
| | - Daniel W Shike
- Department of Animal Sciences, College of Agricultural, Consumer, and Environmental Sciences, University of Illinois, Urbana, Illinois, USA
| | - Parker Henley
- Department of Animal Sciences, College of Agricultural, Consumer, and Environmental Sciences, University of Illinois, Urbana, Illinois, USA
| | - Fabio S Lima
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, Illinois, USA.
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15
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Nerve Growth Factor-β production in the bull: Gene expression, immunolocalization, seminal plasma constitution, and association with sire conception rates. Anim Reprod Sci 2018; 197:335-342. [DOI: 10.1016/j.anireprosci.2018.09.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/24/2018] [Accepted: 09/04/2018] [Indexed: 12/13/2022]
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16
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Byrne C, Fair S, English A, Cirot M, Staub C, Lonergan P, Kenny D. Plane of nutrition before and after 6 months of age in Holstein-Friesian bulls: I. Effects on performance, body composition, age at puberty, and postpubertal semen production. J Dairy Sci 2018; 101:3447-3459. [DOI: 10.3168/jds.2017-13719] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 01/02/2018] [Indexed: 11/19/2022]
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17
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Silva HVR, Rodriguez-Villamil P, Magalhães FFD, Nunes TGP, Freitas LAD, Ribeiro LR, Silva AR, Moura AA, Silva LDMD. Seminal plasma and sperm proteome of ring-tailed coatis (Nasua nasua, Linnaeus, 1766). Theriogenology 2018; 111:34-42. [PMID: 29427806 DOI: 10.1016/j.theriogenology.2017.12.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 12/11/2017] [Accepted: 12/19/2017] [Indexed: 12/24/2022]
Abstract
Ring-tailed coati is listed as a species of least concern in the International Union for Conservation of Nature (IUCN) Red List, however, there has been a sharp decline in their population. The present study was conducted to evaluate the major proteins of both seminal plasma and sperm in ring-tailed coatis. Semen sample was collected from three adult coatis and evaluated for their morphological characteristics. Further, the sample was centrifuged to separate spermatozoa from seminal plasma, and then stored in liquid nitrogen. The seminal plasma and sperm proteins were subjected to one-dimensional (1-D) sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and identified by mass spectrometry. Gene ontology and protein networks were analyzed using bioinformatics tools. Based on sperm concentration and average protein content of the semen, the concentration of protein/spermatozoon was found to be 104.69 ± 44.43 μg. The analysis of SDS-PAGE gels showed 20.3 ± 3.1 and 17 ± 2 protein bands/lane for seminal plasma and sperm, respectively. In-gel protein digestion and peptide analysis by mass spectrometry revealed 238 and 246 proteins in the seminal plasma and sperm, respectively. The gene ontology analysis revealed that the proteins of seminal plasma mainly participated in cellular (35%) and regulatory (21%) processes. According to their cellular localization, seminal plasma proteins were categorized as structural (18%), extracellular (17%), and nuclear (14%) proteins with molecular functions, such as catalytic activity (43%) and binding (43%). The sperm proteins were also involved in cellular (38%) and regulatory (23%) processes, and mainly categorized as extracellular (17%), nuclear (13%), and cytoplasmic (10%) proteins. The major molecular functions of the sperm proteins were catalytic activity (44%) and binding (42%). These results indicated that the seminal plasma of ring-tailed coati has an array of proteins that can potentially modulate several sperm functions, from sperm protection to oocyte binding. However, further studies are necessary to interpret the roles of these major seminal plasma proteins in coatis.
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Affiliation(s)
| | | | | | | | | | | | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation, Federal University of the Semi-Arid, Mossoró, RN, Brazil
| | - Arlindo A Moura
- Department of Animal Science, Federal University of Ceará, Fortaleza, CE, Brazil
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18
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Satake N, Edwards S, Tutt D, McGowan MR, Boe-Hansen GB. Investigation of in vitro measurable sperm attributes and their influence on electroejaculated bull semen with a fixed-time artificial insemination protocol in Australian Bos indicus cattle. Reprod Domest Anim 2017; 53:414-422. [PMID: 29226457 DOI: 10.1111/rda.13121] [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: 06/23/2017] [Accepted: 11/14/2017] [Indexed: 11/29/2022]
Abstract
Increasing use of fixed-time artificial insemination (FTAI) in beef cattle production has presented an opportunity for the use of fresh or chilled semen as an alternative to standard cryopreserved semen. The objective of this study was to examine in vitro sperm function and pregnancy rate of electroejaculated semen, chilled and stored for 48 hr, compared to conventionally cryopreserved semen with an optimized FTAI protocol in Brahman cattle. Semen from three Brahman bulls was collected, and aliquots were extended in either chilled (at 5°C) or frozen (LN2 ) in a Tris-egg yolk extender base with 2.4% or 7.0% glycerol, respectively. Semen samples were assessed 48 hr after collection or post-thaw and warming, for sperm motility, in vitro sperm function and fertilizing ability, and used in a FTAI programme. The overall pregnancy rates was significantly different (p < .01) after FTAI with frozen (n = 173; 53.2%) and chilled semen (n = 174; 31.6%). In contrast, the in vitro sperm assessment showed that the chilled semen had significantly faster motility (p < .05), a higher proportion of progressively motile spermatozoa (p < .05), with significantly higher proportions of acrosome intact, viable spermatozoa (p < .01). This study showed that reasonable pregnancy rates in Brahman cattle can be achieved using FTAI with chilled semen collected using electroejaculation and stored for up to 48 hr. However, improvements in semen extenders are required in consideration of semen collection method to improve the longevity of sperm fertilizing ability to significantly increase FTAI output using chilled storage of bull semen.
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Affiliation(s)
- N Satake
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
| | - Saa Edwards
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
| | - D Tutt
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
| | - M R McGowan
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
| | - G B Boe-Hansen
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
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19
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Campanholi SP, Monteiro FM, Ribeiro Dias EA, Mercadante MEZ, de Paz CCP, Dell'Aqua Junior JA, Papa FO, Dell'Aqua CDPF, Vantini R, Garcia JM. Effect of seminal plasma removal before cryopreservation of bovine semen obtained by electroejaculation on semen quality and in vitro fertility. Theriogenology 2017; 89:114-121. [DOI: 10.1016/j.theriogenology.2016.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 10/03/2016] [Accepted: 10/09/2016] [Indexed: 02/06/2023]
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