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Keeratikunakorn K, Chanapiwat P, Aunpad R, Ngamwongsatit N, Kaeoket K. The Effects of Different Antimicrobial Peptides (A-11 and AP19) on Isolated Bacteria from Fresh Boar Semen and Semen Quality during Storage at 18 °C. Antibiotics (Basel) 2024; 13:489. [PMID: 38927156 PMCID: PMC11200709 DOI: 10.3390/antibiotics13060489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/28/2024] Open
Abstract
Antibiotic resistance (AMR) is a major public health concern. Antimicrobial peptides (AMPs) could be an alternative to conventional antibiotics. The purpose of this research was to investigate the antimicrobial ability of the synthetic AMPs (i.e., A-11 and AP19) on the most frequently isolated bacteria in boar semen and their effect on extended boar semen quality during storage. We tested the antimicrobial effect of A-11 and AP19 at different concentrations and compared them with gentamicin for inhibiting the growth of E. coli, Pseudomonas aeruginosa and Proteus mirabilis that were isolated from fresh boar semen. In order to evaluate the effect of AMP on semen qualities on days 0, 1, 3, and 5 after storage at 18 °C, seven fresh boar semen samples were collected, diluted with semen extender with antibiotic (i.e., gentamicin at 200 µg/mL, positive control) or without (negative control), and semen extender contained only A-11 or AP19 at different concentrations (i.e., 62.50, 31.25, and 15.625 µg/mL). The total bacterial count was also measured at 0, 24, 36, 48, and 72 h after storage. Comparable to gentamicin, both A-11 and AP19 inhibited the growth of E. coli, Pseudomonas aeruginosa, and Proteus mirabilis at 62.50, 31.25, and 15.625 µg/mL, respectively. Comparing the total bacterial count at 0, 24, 36, 48 and 72 h after storage, the lowest total bacterial concentration was found in the positive control group (p < 0.05), and an inferior total bacterial concentration was found in the treatment groups than in the negative control. On day 1, there is a lower percentage of all sperm parameters in the AP19 group at a concentration of 62.50 µg/mL compared with the other groups. On day 3, the highest percentage of all sperm parameters was found in the positive control and A-11 at a concentration of 31.25 µg/mL compared with the other groups. The AP19 group at 62.5 µg/mL constantly yielded inferior sperm parameters. On day 5, only A-11 at a concentration of 15.625 µg/mL showed a total motility higher than 70%, which is comparable to the positive control. A-11 and AP19 showed antimicrobial activity against E. coli, Pseudomonas aeruginosa and Proteus mirabilis isolated from boar semen. Considering their effect on semen quality during storage, these antimicrobial peptides are an alternative to conventional antibiotics used in boar semen extenders. Nevertheless, the utilization of these particular antimicrobial peptides relied on the concentration and duration of storage.
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Affiliation(s)
- Krittika Keeratikunakorn
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (K.K.); (P.C.); (N.N.)
| | - Panida Chanapiwat
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (K.K.); (P.C.); (N.N.)
| | - Ratchaneewan Aunpad
- Graduate Program in Biomedical Sciences, Faculty of Allied Health Sciences, Thammasat University, Rangsit Campus, Klongluang, Pathum Thani 12120, Thailand;
| | - Natharin Ngamwongsatit
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (K.K.); (P.C.); (N.N.)
- Laboratory of Bacteria, Veterinary Diagnostic Center, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand
| | - Kampon Kaeoket
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom 73170, Thailand; (K.K.); (P.C.); (N.N.)
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Lenický M, Sidor E, Dianová L, Tirpák F, Štefunková N, Dżugan M, Halo M, Halo M, Slanina T, Urban I, Bažány D, Greń A, Roychoudhury S, Schneir ER, Massányi P. The effect of bee drone brood on the motility and viability of stallion spermatozoa-an in vitro study. In Vitro Cell Dev Biol Anim 2024:10.1007/s11626-024-00918-y. [PMID: 38772999 DOI: 10.1007/s11626-024-00918-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 04/22/2024] [Indexed: 05/23/2024]
Abstract
Bee drone brood is a beehive by-product with high hormonal activity used in natural medicine to treat male infertility. The aim of the study was to assess the effect of drone brood on stallion spermatozoa during a short-term incubation for its potential use in the equine semen extenders. Three different forms of fixed drone brood (frozen (FR), freeze-dried (FD), and dried extract (DE)) were used. Solutions of drone brood were compared in terms of testosterone, protein, total phenolic content, and antioxidant activity. The stallion semen was diluted with prepared drone brood solutions. The computer-assisted semen analysis (CASA) method was employed to evaluate the movement characteristics of the diluted ejaculate. To determine spermatozoa viability, the mitochondrial toxicity test (MTT) and Alamar Blue test were performed. In terms of testosterone content and antioxidant activity, a close likeness between FR and FD was found whereas DE's composition differed notably. FR had a positive effect mainly on progressive motility, but also on sperm distance and speed parameters after 2 and 3 h of incubation. On the contrary, FD and DE acted negatively, depending on increasing dose and time. For the first time, a positive dose-dependent effect of fixed drone brood on spermatozoa survival in vitro was demonstrated.
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Affiliation(s)
- Michal Lenický
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
| | - Ewelina Sidor
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a St., 35-601, Rzeszów, Poland
- Doctoral School, University of Rzeszow, Rejtana 16C, 35-959, Rzeszow, Poland
| | - Lucia Dianová
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic.
| | - Filip Tirpák
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
- Division of Animal Sciences, University of Missouri, 920 East Campus Drive, Columbia, MO, 65211-5300, USA
| | - Nikola Štefunková
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
| | - Małgorzata Dżugan
- Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszów, Ćwiklińskiej 1a St., 35-601, Rzeszów, Poland
| | - Marko Halo
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
| | - Marko Halo
- Institute of Animal Husbandry, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
| | - Tomáš Slanina
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
| | - Iveta Urban
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
| | - Denis Bažány
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
| | - Agnieszka Greń
- Institute of Biology, Pedagogical University of Krakow, Podchorazych 2, 30-084, Krakow, Poland
| | | | | | - Peter Massányi
- Institute of Applied Biology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
- Institute of Biology, Pedagogical University of Krakow, Podchorazych 2, 30-084, Krakow, Poland
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Bolarin A, Berndtson J, Tejerina F, Cobos S, Pomarino C, D'Alessio F, Blackburn H, Kaeoket K. Boar semen cryopreservation: State of the art, and international trade vision. Anim Reprod Sci 2024:107496. [PMID: 38763787 DOI: 10.1016/j.anireprosci.2024.107496] [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: 02/29/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 05/21/2024]
Abstract
Biosecurity is a major concern in the global pig production. The separation in time of semen collection, processing and insemination in the pig farm is a few days for chilled semen but it can be indefinite when using cryopreserved semen. Field fertility results of boar cryopreserved semen are close to chilled semen, which makes it a valuable resource for the establishment of semen genebanks, long-distance semen trade, and the implementation of other technologies such as the sex-sorted semen. But cryopreserved semen is far from being routine in pig farms. The most recent research efforts to facilitate its implementation include the use of additives before freezing, or in the thawing extender. Long-term preserved semen trade is a biosecurity challenge. To harmonize international trade of germplasm, the World Organization of Animal Health (WOAH) established a regulatory framework for all member countries. The present paper aims to review the latest advances of boar semen cryopreservation with special focus on the benefits of its inclusion as a routine tool in the pig industry. We also review recently reported field fertility results of cryopreserved semen, its international trade compared to chilled semen, and the regulatory framework involved. Boar cryopreserved semen is a valuable tool to control biosecurity risk, implement other technologies, and facilitate international trade. Research already demonstrated good field fertility results, but it still represents less than 0.1 % of the international trade. As boar cryopreserved semen gets closer to implementation, the correspondent authorities are reviewing the trade rules.
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Affiliation(s)
| | | | - F Tejerina
- Ministry of Agriculture, Fisheries and Food. General Sub-directorate of Livestock Inputs, Madrid, Spain
| | - S Cobos
- Ministry of Agriculture, Fisheries and Food. General Sub-directorate of Health Agreements and Border Control, Madrid, Spain
| | - C Pomarino
- Ministry of Agriculture, Fisheries and Food. General Sub-directorate of Animal Health and Hygiene and Traceability, Madrid, Spain
| | - F D'Alessio
- World Organization for Animal Health (OIE), Paris, France
| | - H Blackburn
- USDA-ARS, National Animal Germplasm Program, Fort Collins, CO, United States
| | - K Kaeoket
- Semen Laboratory, Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, Nakhon-Pathom 73170, Thailand
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Wang SC, Wu YY, Chen MC. Predicting the cryotolerance of boar sperm through antioxidant stress. Reprod Domest Anim 2024; 59:e14554. [PMID: 38566374 DOI: 10.1111/rda.14554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/07/2024] [Accepted: 03/13/2024] [Indexed: 04/04/2024]
Abstract
High sperm cryotolerance is crucial to the successful cryopreservation of boar sperm. Evaluating the cryotolerance of boar sperm by using a rapid and convenient technique can enhance the commercial viability of these sperm. This study investigated the correlation between sperm parameters for three sample subsets-fresh sperm, sperm with H2O2-induced oxidative damage (hereinafter referred to as H2O2-induced sperm), and frozen-thawed sperm-to identify the potential of these correlations to predict cryotolerance. A total of 64 sperm samples were obtained from 64 Duroc boars. The sperm parameters of the three subsets, where the frozen-thawed sperm were analysed at 30 or 180 min after thawing, were determined, and the coefficients of correlation between these parameters were calculated. The results indicated that H2O2-induced oxidative stress resulted in decreases in various sperm parameters-including total motility (TM), viability (VIA), mitochondrial membrane potential (MMP), and live sperm with MMP (LMP)-but increased their coefficients of variation. Receiver operating characteristic (ROC) curve analysis revealed that the kinematic parameters of the H2O2-induced sperm effectively predicted those of the frozen-thawed boar sperm at 30 min after thawing; the corresponding area under the ROC curve (AUC) was 0.8667 for TM and 0.8733 for progressive motility in the H2O2-induced sperm. For measurement at 180 min after thawing, the sperm membrane and mitochondrial parameters of the H2O2-induced sperm effectively predicted the LMP of the frozen-thawed boar sperm; the corresponding AUC was 0.8489 for VIA, 0.8289 for MMP, and 0.8444 for LMP. To our knowledge, this is the first study to directly establish a strong correlation between post-thaw boar sperm quality and H2O2-induced oxidative stress before freezing. Our proposed technique can serve as a valuable reference for the development of practical applications aimed at enhancing techniques for cryopreserving boar sperm.
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Affiliation(s)
- Shih-Chung Wang
- Department of Biotechnology and Animal Science, National Ilan University, Yilan, Taiwan, R.O.C
| | - Yi-Ying Wu
- Department of Biotechnology and Animal Science, National Ilan University, Yilan, Taiwan, R.O.C
| | - Ming-Cheng Chen
- Department of Biotechnology and Animal Science, National Ilan University, Yilan, Taiwan, R.O.C
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Jiang S, Huang F, Niu P, Wang J, He X, Han C, Gao Q. Preservation of Simmental bull sperm at 0°C in Tris dilution: effect of dilution ratio and long-distance transport. Anim Biosci 2024; 37:203-209. [PMID: 37654167 PMCID: PMC10766479 DOI: 10.5713/ab.23.0234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/15/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023] Open
Abstract
OBJECTIVE This study aimed to assess the impact of the dilution ratio of Tris diluent, storage at 0°C, and long-distance transportation on the spermatozoa of Simmental cattle. It also validated the feasibility of the regional distribution of fresh semen. METHODS In experiment 1, semen was diluted at four dilution ratios (1:6, 1:9, 1:12, and 1:15) to determine the optimal dilution ratio of Tris diluent. In experiment 2, we assessed sperm viability, progressive motility (objectively assessed by computer-assisted sperm analyzer), and acrosome intactness in Tris dilutions kept at constant 0°C for 1, 3, 6, 9, and 12 days. We compared them to Tianshan livestock dilutions (Commercial diluent). In experiment 3, semen was diluted using Tris diluent, and sperm quality was measured before and after long-distance transport. Artificial insemination of 177 Simmental heifers compared to 156 using Tianshan Livestock dilution. RESULTS The outcomes demonstrated that 1:9 was the ideal Tris diluent dilution ratio. The sperm viability, Progressive Motility, and acrosome integrity of both Tris and Tianshan dilutions preserved at 0°C gradually decreased over time. sperm viability was above 50% for both dilutions on d 9, with a flat rate of decline. The decrease in acrosome integrity rate was faster for Tianshan livestock dilutions than for Tris dilutions when stored at 0°C for 1 to 6 days. There was no significant difference (p>0.05) in sperm viability between semen preserved in Tris diluent after long-distance transportation and semen preserved in resting condition. The conception rates for Tris dilution and Tianshan livestock dilution were 49.15% and 46.15% respectively, with no significant difference (p>0.05). CONCLUSION This shows that Tris diluent is a good long-term protectant. It has been observed that fresh semen can be successfully preserved for long-distance transport when stored under 0°C conditions. Additionally, it is feasible to distribute semen regionally.
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Affiliation(s)
- Shouqing Jiang
- College of Animal Science and Technology, Tarim University, Alar 843300,
China
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300,
China
| | - Fei Huang
- College of Life Science and Technology, Tarim University, Alar 843300,
China
- Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Xinjiang Production and Construction Corps, Alar 843300,
China
| | - Peng Niu
- College of Animal Science and Technology, Tarim University, Alar 843300,
China
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300,
China
| | - Jieru Wang
- College of Life Science and Technology, Tarim University, Alar 843300,
China
- Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Xinjiang Production and Construction Corps, Alar 843300,
China
| | - Xiaoxia He
- College of Animal Science and Technology, Tarim University, Alar 843300,
China
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300,
China
| | - Chunmei Han
- College of Animal Science and Technology, Tarim University, Alar 843300,
China
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300,
China
| | - Qinghua Gao
- College of Animal Science and Technology, Tarim University, Alar 843300,
China
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production and Construction Corps, Alar 843300,
China
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Song C, Zhang Z, Wei Y, Dou Y, Qi K, Li X, Yang F, Li X, Wang K, Qiao R, Han X. Proteomic analysis of boar sperm with differential ability of liquid preservation at 17 °C. Theriogenology 2024; 215:103-112. [PMID: 38029685 DOI: 10.1016/j.theriogenology.2023.11.017] [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: 06/30/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023]
Abstract
Understanding the liquid preservation ability of boar sperm is pivotal for efficient management and breeding of livestock. Although sperm proteins play an important role in semen quality and freezability, how the levels of protein change in boar sperm with different liquid preservation abilities at 17 °C remains unclear. In this study, two groups of boar sperm with extreme difference in liquid preservation ability, namely the good preservation ability (GPA) and the poor preservation ability (PPA) groups, were selected by evaluating sperm motility parameters on the 7th day of liquid preservation at 17 °C. Quantitative proteomics based on tandem mass tag (TMT) labeling was used, sperm proteomic characteristics from two groups were analyzed, and potentially key proteins related to the fluid preservation ability of sperm were identified. A total of 187 differentially expressed proteins (DEPs) were identified among 2791 quantified proteins, including 85 upregulated, and 102 downregulated proteins. Further, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses of the DEPs revealed that they were enriched in GO terms associated with response to oxidative stress, enzyme activity related to oxidative stress or redox reactions, and several metabolic activities. The significant KEGG pathways included peroxisome, metabolic pathways, selenocompound metabolism, and collection duct acid secretion. In addition, analysis of protein-protein interactions further identified 8 proteins that could be used as biomarker candidates, including GPX5, GLRX, ENO4, QPCT, BBS7, OXSR1, DHRS4 and AP2S1, which may play an essential role in indicating the liquid preservation ability of boar sperm. These findings in this study provide new insights into the underlying molecular mechanisms of the liquid preservation ability of boar sperm. Moreover, the selected candidate proteins can serve as a reference for evaluating sperm quality or preservation ability in boars and their application in related biotechnologies.
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Affiliation(s)
- Chenglei Song
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Zhe Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yilin Wei
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yaqing Dou
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Kunlong Qi
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Xiuling Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Feng Yang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Xinjian Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Kejun Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Ruimin Qiao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China
| | - Xuelei Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, 450046, China.
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Li J, Li J, Wang S, Ju H, Chen S, Basioura A, Ferreira-Dias G, Liu Z, Zhu J. Post-Thaw Storage Temperature Influenced Boar Sperm Quality and Lifespan through Apoptosis and Lipid Peroxidation. Animals (Basel) 2023; 14:87. [PMID: 38200818 PMCID: PMC10778526 DOI: 10.3390/ani14010087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/13/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Cryopreservation deteriorates boar sperm quality and lifespan, which restricts the use of artificial insemination with frozen-thawed boar semen in field conditions. The objective of this study was to test the effects of post-thaw storage time and temperature on boar sperm survival. Semen ejaculates from five Landrace boars (one ejaculate per boar) were collected and frozen following a 0.5 mL-straw protocol. Straws from the five boars were thawed and diluted 1:1 (v:v) in BTS. The frozen-thawed semen samples were aliquoted into three parts and respectively stored at 5 °C, 17 °C, and 37 °C for up to 6 h. At 0.5, 2, and 6 h of storage, sperm motility, viability, mitochondrial membrane potential, and intracellular reactive oxygen species (ROS) levels and apoptotic changes were measured. Antioxidant and oxidant levels were tested in boar sperm (SPZ) and their surrounding environment (SN) at each timepoint. The results showed significant effects of post-thaw storage time and temperature and an impact on boar sperm quality (total and progressive motility, VCL, viability, acrosome integrity), early and late sperm apoptotic changes, and changes in MDA levels in SPZ and SN. Compared to storage at 5 °C and 37 °C, frozen-thawed semen samples stored at 17 °C displayed better sperm quality, less apoptotic levels, and lower levels of SPZ MDA and SN MDA. Notably, post-thaw storage at 17 °C extended boar sperm lifespan up to 6 h without obvious reduction in sperm quality. In conclusion, storage of frozen-thawed boar semen at 17 °C preserves sperm quality for up to 6 h, which facilitates the use of cryopreserved boar semen for field artificial insemination.
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Affiliation(s)
- Junwei Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.L.); (J.L.); (H.J.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Juncheng Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.L.); (J.L.); (H.J.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Shuaibiao Wang
- DanAg Agritech Consulting (Zhengzhou) Co., Ltd., Zhengzhou 450046, China;
- Royal Veterinary College, London NW1 0TU, UK
| | - Huiming Ju
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.L.); (J.L.); (H.J.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Shufang Chen
- Ningbo Academy of Agricultural Science, Ningbo 315040, China;
| | - Athina Basioura
- Department of Agriculture, School of Agricultural Sciences, University of Western Macedonia, 53100 Florina, Greece;
| | - Graça Ferreira-Dias
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal;
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.L.); (J.L.); (H.J.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
| | - Jiaqiao Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (J.L.); (J.L.); (H.J.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
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Serrano Albal M, Aquilina MC, Zak LJ, Ellis PJ, Griffin DK. Successful recovery of motile and viable boar sperm after vitrification with different methods (pearls and mini straws) using sucrose as a cryoprotectant. Cryobiology 2023; 113:104583. [PMID: 37659575 DOI: 10.1016/j.cryobiol.2023.104583] [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: 03/13/2023] [Revised: 08/09/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
Vitrification of sperm by direct contact with liquid nitrogen is increasing in popularity as an alternative to conventional (slow) freezing. Although slow freezing is very challenging in boar sperm cryopreservation, this is currently the standard method used. We compared vitrification in "pearls" and in "mini straws" using the in vitro fertilization media Porcine Gamete Media with 0.3 M sucrose with the standard (slow) method used to preserve boar sperm. Both vitrification methods reduced the viability of the sperm sample more than slow freezing (42.2 ± 4.3% total motility and 71.4 ± 2.3% alive), however, both protocols allowed for the successful recovery of the sperm samples. By comparing two different methods of vitrification and two different methods of post-thaw preparation we were able to determine the optimal vitrification-thaw protocol for boar sperm. When comparing pearls and mini-straws, the smaller liquid volume associated with pearls had a positive effect on the survivability of the samples, reducing sperm DNA damage (1.2 ± 0.2% vs. 5.1 ± 0.1.7%) and preserving motility (26.15 ± 2.8% vs 9.39 ± 0.9%) after thawing. In conclusion, the pearl method was the most suitable of the vitrification techniques for use with boar sperm.
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Affiliation(s)
| | | | - Louisa J Zak
- Topigs Norsvin Research Center, Beuningen, the Netherlands
| | - Peter J Ellis
- School of Biosciences, University of Kent, Canterbury, United Kingdom
| | - Darren K Griffin
- School of Biosciences, University of Kent, Canterbury, United Kingdom
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Liu C, Feng H, Han J, Zhou H, Yuan L, Pan H, Wang X, Han X, Qiao R, Yang F, Li X. Effect of L-proline on sperm quality during cryopreservation of boar semen. Anim Reprod Sci 2023; 258:107359. [PMID: 37832280 DOI: 10.1016/j.anireprosci.2023.107359] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023]
Abstract
L-proline has been reported to be useful in semen cryopreservation. However, its use has rarely been reported in the freezing of boar semen. The objective of this study was to evaluate the effects of different concentrations of L-proline (0, 10, 30, 50, and 90 mM) on the quality of boar semen after freezing and thawing. Semen samples from boars (n = 6) were frozen using freezing extenders with added concentrations of L-proline. Total sperm motility, progressive motility, survival time at 37 °C, acrosome integrity, mitochondrial activity, DNA integrity, the content of the lipid peroxidation product malondialdehyde (MDA), total antioxidant capacity (T-AOC) and, expression levels of apoptosis protein (cleaved caspase 3 and Bax) were evaluated after thawing. The results showed that total sperm viability (73.96% vs. 63.58%) and progressive motility (56.88% vs. 47.26%) after thawing were significantly higher in the 10 mM L-proline treatment group than in the control group. The survival time at 37 °C and the total motility of sperm in the 10 mM group within one hour after thawing were significantly higher than in the control group. Acrosome integrity and mitochondrial activity of sperm in the 10 mM group were significantly higher than those in the control, 50 mM, and 90 mM groups. The DNA integrity rate in the 10 mM group was significantly higher than in the control group. The L-proline treatment did not affect sperm MDA content or T-AOC. The expression levels of apoptosis protein (cleaved caspase 3 and Bax) in the 10 mM L-proline supplemented group were lower than those in the control group. In conclusion, the freezing extender containing 10 mM L-proline improved semen quality after freezing and thawing and thus would be a useful reagent for boar semen cryopreservation.
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Affiliation(s)
- Chuang Liu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China
| | - Haoyi Feng
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China
| | - Jinyi Han
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China
| | - Hao Zhou
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China
| | - Liwei Yuan
- Henan Jingwang Pig Breed Improvement Co. LTD, China
| | - Hongshuang Pan
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China
| | - Xiaohan Wang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China
| | - Xuelei Han
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China
| | - Ruimin Qiao
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China
| | - Feng Yang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China.
| | - Xinjian Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Henan Agricultural University, China.
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10
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Xiong Z, Hong Z, Li X, Gao D, Wang L, Liu S, Zhao J, Li X, Qian P. The multidrug-resistant Pseudomonas fluorescens strain: a hidden threat in boar semen preservation. Front Microbiol 2023; 14:1279630. [PMID: 37869660 PMCID: PMC10588451 DOI: 10.3389/fmicb.2023.1279630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 09/18/2023] [Indexed: 10/24/2023] Open
Abstract
Although the bacterial composition of boar ejaculate has been extensively studied, the bacterial composition of extended boar semen is often overlooked, despite the potential risks these microorganisms may pose to the long-term preservation of extended boar semen at 15-17°C. In this study, we characterized the bacterial community composition of extended semen and discovered that Pseudomonas spp. was the dominant flora. The dominant strains were further isolated and identified as a potential new species in the Pseudomonas fluorescens group and named GXZC strain, which had adverse effects on sperm quality and was better adapted to growth at 17°C. Antimicrobial susceptibility testing showed that the GXZC strain was resistant to all commonly used veterinary antibiotics. Whole-genome sequencing (WGS) and genome annotation revealed the large genetic structure and function [7,253,751 base pairs and 6,790 coding sequences (CDSs)]. Comparative genomic analysis with the closest type strains showed that the GXZC strain predicted more diversity of intrinsic and acquired resistance genes to multi-antimicrobial agents. Taken together, our study highlights a problem associated with the long-term storage of extended boar semen caused by a P. fluorescens group strain with unique biological characteristics. It is essential to develop a new antibacterial solution for the long-term preservation of boar semen.
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Affiliation(s)
- Zhixuan Xiong
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
| | - Ziqiang Hong
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
| | - Xinxin Li
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
| | - Dongyang Gao
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
| | - Linkang Wang
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
| | - Shudan Liu
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
| | - Junna Zhao
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
| | - Xiangmin Li
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
| | - Ping Qian
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, China
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11
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Pezo F, Zambrano F, Uribe P, de Andrade AFC, Sánchez R. Slow Freezing of Preserved Boar Sperm: Comparison of Conventional and Automated Techniques on Post-Thaw Functional Quality by a New Combination of Sperm Function Tests. Animals (Basel) 2023; 13:2826. [PMID: 37760225 PMCID: PMC10525940 DOI: 10.3390/ani13182826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/03/2023] [Accepted: 07/03/2023] [Indexed: 09/29/2023] Open
Abstract
The slow freezing of boar sperm is the only way to preserve genetic material for extended periods; this can be achieved with exposure to liquid nitrogen vapors (conventional) or by using automated freezing equipment. The aim was to compare the effect of both techniques on post-thaw functionality. Boar sperm devoid of seminal plasma and resuspended in lactose-egg yolk-glycerol medium were cryopreserved. Conventional: straws were exposed to LN2 vapors; automated: using a drop curve of -39.82 °C·min-1 for 113 s from -5 to -80 °C during the critical period; and subsequent immersion in NL2. Cell viability, cholesterol flow, mitochondrial membrane potential (MMP), lipid peroxidation, peroxynitrite, superoxide anion levels, phosphatidylserine translocation, and caspase activation were evaluated by flow cytometry. In addition, total motility (TM) and progressive motility (PM) were determined by the SCA system immediately (T0), 60 (T60), and 120 min (T120) post-thawing. Automated freezing significantly reduces cholesterol flow and free radical and lipid peroxidation levels, making it possible to preserve motility for 120 min of incubation. At the same time, viability, acrosome integrity, MMP, and caspase activation did not differ from the conventional technique. In conclusion, controlling the temperature drop curve using automated freezing equipment reduces oxidative/nitrosative stress, preserving membrane fluidity and sperm motility.
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Affiliation(s)
- Felipe Pezo
- Escuela de Medicina Veterinaria, Facultad de Recursos Naturales y Medicina Veterinaria, Universidad Santo Tomas, Santiago 8370003, Chile;
| | - Fabiola Zambrano
- Laboratory of Reproductive Physiopathology, Center for Translational Medicine (CEMT-BIOREN), Temuco 4811230, Chile; (F.Z.); (P.U.)
- Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco 4811230, Chile
| | - Pamela Uribe
- Laboratory of Reproductive Physiopathology, Center for Translational Medicine (CEMT-BIOREN), Temuco 4811230, Chile; (F.Z.); (P.U.)
- Department of Internal Medicine, Faculty of Medicine, Universidad de La Frontera, Temuco 4811230, Chile
| | - André Furugen Cesar de Andrade
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science (FMVZ), University of São Paulo (USP), Pirassununga 13635-900, SP, Brazil;
| | - Raúl Sánchez
- Laboratory of Reproductive Physiopathology, Center for Translational Medicine (CEMT-BIOREN), Temuco 4811230, Chile; (F.Z.); (P.U.)
- Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco 4811230, Chile
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12
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Osman R, Lee S, Almubarak A, Han JI, Yu IJ, Jeon Y. Antioxidant Effects of Myo-Inositol Improve the Function and Fertility of Cryopreserved Boar Semen. Antioxidants (Basel) 2023; 12:1673. [PMID: 37759976 PMCID: PMC10525680 DOI: 10.3390/antiox12091673] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/18/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
During cryopreservation, sperm undergoes structural and molecular changes such as ice crystal formation, DNA fragmentation, and reactive oxygen species (ROS) production, leading to decreased sperm quality after thawing. Antioxidants play a crucial role in preventing these damages, both in vivo and in vitro. One potent antioxidant is myo-inositol, known for its protective effects on sperm against ROS. This study aimed to investigate the protective effect of myo-inositol on cryopreserved boar semen. The semen was diluted, cooled, and cryopreserved using a BF5 extender. It was then divided into five groups: control and different concentrations of myo-inositol (0.5, 1, 1.5, and 2 mg/mL). The post-thaw evaluation included assessments of motility, viability, acrosome integrity, mitochondrial membrane potential (MMP), caspase activity, gene expression, ROS levels, apoptosis, and IVF with treated semen. Results showed that myo-inositol at 0.5 mg/mL improved motility, acrosome integrity, and fertilization ability. It also reduced the expression of pro-apoptotic genes and increased SMCP expression. Lower concentrations also demonstrated improved viability and reduced apoptosis and ROS levels. In conclusion, myo-inositol treatment during cryopreservation improved sperm quality, reduced apoptosis and ROS levels, and enhanced fertility rates in boar semen.
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Affiliation(s)
- Rana Osman
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
| | - Seongju Lee
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
| | - Areeg Almubarak
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, Sudan University of Science and Technology, P.O. Box 204, Hilat Kuku, Khartoum North 11111, Sudan
| | - Jae-Ik Han
- Laboratory of Wildlife Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea;
| | - Il-Jeoung Yu
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
| | - Yubyeol Jeon
- Department of Theriogenology and Reproductive Biotechnology, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Republic of Korea; (R.O.); (S.L.); (A.A.); (I.-J.Y.)
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13
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Keeratikunakorn K, Kaewchomphunuch T, Kaeoket K, Ngamwongsatit N. Antimicrobial activity of cell free supernatants from probiotics inhibits against pathogenic bacteria isolated from fresh boar semen. Sci Rep 2023; 13:5995. [PMID: 37046067 PMCID: PMC10097705 DOI: 10.1038/s41598-023-33062-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/06/2023] [Indexed: 04/14/2023] Open
Abstract
The use of antibiotics with semen extender appears to be a practical solution to minimise bacterial growth in fresh boar semen preservation. Unfortunately, the excessive use of antibiotics promotes antimicrobial resistance (AMR). This becomes a worldwide concern due to the antimicrobial resistance genes transmitted to animals, environment, and humans. Probiotics are one of the alternative methods to reduce antibiotic use. They could inhibit pathogenic bacteria by producing antimicrobial substances in cell free supernatants (CFS). Nevertheless, there is no comprehensive study undertaken on inhibitory activity against pathogenic bacteria isolated from boar semen origin. Our study investigated the efficacy of CFS produced from selected probiotics: Bacillus spp., Enterococcus spp., Weissella spp., Lactobacillus spp., and Pediococcus spp. inhibiting pathogenic bacteria isolated from fresh boar semen. Besides, the semen-origin pathogenic bacteria are subjected to identification, antimicrobial resistance genes detection, and antibiotic susceptibility test (AST). Pseudomonas aeruginosa, Escherichia coli, and Proteus mirabilis are the most common pathogens identified in boar semen with resistance to numerous antibiotics used in pig industry. The CFS with its antimicrobial peptides and/or bacteriocin constituent derived from selected probiotics could inhibit the growth of pathogenic bacteria carrying antimicrobial resistance genes (mcr-3 and int1 genes). The inhibition zones for Pseudomonas aeruginosa, Escherichia coli, and Proteus mirabilis provided more efficient results in the CFS derived from Lactobacillus spp. and Pediococcus spp. than those of the CFS produced from Enterococcus spp., Weissella spp. and Bacillus spp., respectively. It is worth noted that as the incubation time increased, the antibacterial activity decreased conversely. Our results on CFS with its antimicrobial peptides and/or bacteriocin constituent inhibits semen-origin pathogenic bacteria guide the direction as a promising alternative method used in the semen extender preservation of the pig industry.
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Affiliation(s)
- Krittika Keeratikunakorn
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand
| | - Thotsapol Kaewchomphunuch
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand
| | - Kampon Kaeoket
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand
| | - Natharin Ngamwongsatit
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand.
- Laboratory of Bacteria, Veterinary Diagnostic Center, Faculty of Veterinary Science, Mahidol University, 999 Phuttamonthon 4 Rd., Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand.
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14
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Hu Q. Effects of zinc chloride on boar sperm quality during liquid storage at 17°C. Vet Med Sci 2023; 9:1217-1225. [PMID: 36757104 DOI: 10.1002/vms3.1094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
OBJECTIVES The aim of this study was to evaluate the effects of zinc chloride (ZnCl2 ) at 20, 50, 100, and 200 μg/mL on the quality of seminal plasma-free boar sperm stored at 17°C for 7 days and to explore the underlying mechanisms. METHODS Boar sperm were collected and incubated in non-capacitation/capacitation medium to analyze sperm quality. RESULTS In the non-capacitated state, the addition of ZnCl2 at 20 and 50 μg/mL improved the survival rate and plasma membrane integrity of boar sperm (p < 0.05). Compared to the control group, the addition of ZnCl2 significantly increased total antioxidative capacity and CuZn superoxide dismutase activity, while reducing the malondialdehyde content (p < 0.05). ZnCl2 at 100 and 200 μg/mL significantly decreased sperm motility, protein kinase A (PKA) substrate phosphorylation, and tyrosine phosphorylation. These proteins were mainly located on the mid-pieces of the flagellum. The addition of ZnCl2 at 20 and 50 μg/mL conveyed a protective effect to boar sperm stored at 17°C. Furthermore, ZnCl2 at 100 and 200 μg/mL inhibited sperm motility via tyrosine phosphorylation, thus preventing the 'capacitation-like' state. In the capacitated state, there was no change in PKA substrate phosphorylation and tyrosine phosphorylation of the mid-pieces of the flagellum compared to the control groups, indicating that the addition of Zn2+ did not negatively affect capacitation of preserved sperm. CONCLUSIONS ZnCl2 showed protective capacity to the preservation extender used for boar sperm during the process of 17°C storage, and the optimal concentration of ZnCl2 for the preservation extender was 100 μg/mL.
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Affiliation(s)
- Qimeng Hu
- Hebei Key Laboratory of Animal Diversity, College of Life Sciences, Langfang Normal University, Langfang, China
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15
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Sperm Quality and Fertility of Livestock Animals. Animals (Basel) 2023; 13:ani13040604. [PMID: 36830389 PMCID: PMC9951638 DOI: 10.3390/ani13040604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023] Open
Abstract
Recent research has focused on the understanding of the causes of subfertility observed in livestock species, evidencing that different factors could underlie this condition [...].
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16
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Molecular Markers: A New Paradigm in the Prediction of Sperm Freezability. Int J Mol Sci 2023; 24:ijms24043379. [PMID: 36834790 PMCID: PMC9960060 DOI: 10.3390/ijms24043379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023] Open
Abstract
For decades now, sperm cryopreservation has been a pillar of assisted reproduction in animals as well as humans. Nevertheless, the success of cryopreservation varies across species, seasons, and latitudes and even within the same individual. With the dawn of progressive analytical techniques in the field of genomics, proteomics, and metabolomics, new options for a more accurate semen quality assessment have become available. This review summarizes currently available information on specific molecular characteristics of spermatozoa that could predict their cryotolerance before the freezing process. Understanding the changes in sperm biology as a result of their exposure to low temperatures may contribute to the development and implementation of appropriate measures to assure high post-thaw sperm quality. Furthermore, an early prediction of cryotolerance or cryosensitivity may lead to the establishment of customized protocols interconnecting adequate sperm processing procedures, freezing techniques, and cryosupplements that are most feasible for the individual needs of the ejaculate.
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17
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Yue S, Wang S, Liu X, Bian X, Ding C, Wu T, Li D, Zhou J. Ameliorative effect of silymarin on the quality of frozen-thawed boar spermatozoa. Reprod Domest Anim 2023; 58:298-306. [PMID: 36269155 DOI: 10.1111/rda.14286] [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: 08/14/2022] [Revised: 10/09/2022] [Accepted: 10/19/2022] [Indexed: 11/28/2022]
Abstract
Although Silymarin (SMN) has powerful antioxidant properties, little is known about its effects on the quality of frozen-thawed boar sperm. The present study aimed to evaluate the influences of SMN added to the thawing extender on boar sperm parameters essential for fertilization. The frozen-thawed semen was diluted in a Modena thawing extender supplemented with different concentrations of SMN (0, 5, 10, 20 and 50 μM respectively), and then the changes in quality parameters, antioxidant capacity, mitochondrial function and in vitro fertilization (IVF) capability of frozen-thawed sperm were assessed. Here we demonstrated that the motility, plasma membrane integrity and acrosomal integrity of frozen-thawed sperm improved efficiently by SMN (p < .05). In antioxidant parameters evaluation, the tROS level and MDA content of frozen-thawed spermatozoa were reduced in the 20 μM SMN group, while the T-AOC activity significantly increased (p < .05), indicating that the supplementation with SMN can promote the antioxidant capacity of frozen-thawed boar sperm. Besides, we also discovered that the addition of SMN significantly upregulated ATP content and enhanced the mitochondrial activity of sperm. More interestingly, SMN promoted the activities of mitochondrial respiratory chain complexes (MRCC) I, II, III and IV in frozen-thawed sperm significantly. Functionally, the higher penetration rate and increased total efficiency of fertilization were observed in the 20 μM SMN group. In summary, supplementation with SMN in the thawing medium ameliorates the quality of frozen-thawed boar sperm by enhancing mitochondrial respiratory capacity, producing large amounts of ATP and regulating ROS formation.
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Affiliation(s)
- Shunli Yue
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Shunwei Wang
- Reproductive Medicine Center, The Second People's Hospital of Yibin, Yibin, Sichuan, China
| | - Xue Liu
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Xiaoqi Bian
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Chang Ding
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Tong Wu
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Dantong Li
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Jiabo Zhou
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
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18
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Song C, Chang L, Wang B, Zhang Z, Wei Y, Dou Y, Qi K, Yang F, Li X, Li X, Wang K, Qiao R, Han X. Seminal plasma metabolomics analysis of differences in liquid preservation ability of boar sperm. J Anim Sci 2023; 101:skad392. [PMID: 38006391 PMCID: PMC10718801 DOI: 10.1093/jas/skad392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 11/23/2023] [Indexed: 11/27/2023] Open
Abstract
The preservation of semen is pivotal in animal reproduction to ensure successful fertilization and genetic improvement of livestock and poultry. However, investigating the underlying causes of differences in sperm liquid preservation ability and identifying relevant biomarkers remains a challenge. This study utilized liquid chromatography-mass spectrometry (LC-MS) to analyze the metabolite composition of seminal plasma (SP) from two groups with extreme differences in sperm liquid preservation ability. The two groups namely the good liquid preservation ability (GPA) and the poor preservation ability (PPA). The aim was to explore the relationship between metabolite composition in SP and sperm liquid preservation ability, and to identify candidate biomarkers associated with this ability of sperm. The results revealed the identification of 756 metabolites and 70 differentially expressed metabolites (DEM) in the SP from two groups of boar semen with differing liquid preservation abilities at 17 °C. The majority of identified metabolites in the SP belonged to organic acids and derivatives as well as lipids and lipid-like molecules. The DEM in the SP primarily consisted of amino acids, peptides, and analogs. The Kyoto Encyclopedia of Genes and Genomes analysis also demonstrated that the DEM are mainly concentrated in amino acid synthesis and metabolism-related pathways (P < 0.05). Furthermore, eleven key metabolites were identified and six target amino acids were verified, and the results were consistent with the non-targeted metabolic analysis. These findings indicated that amino acids and their associated pathways play a potential role in determining boar sperm quality and liquid preservation ability. D-proline, arginine, L-citrulline, phenylalanine, leucine, DL-proline, DL-serine, and indole may serve as potential biomarkers for early assessment of boar sperm liquid preservation ability. The findings of this study are helpful in understanding the causes and mechanisms of differences in the liquid preservation ability of boar sperm, and provide valuable insights for improving semen quality assessment methods and developing novel extenders or protocols.
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Affiliation(s)
- Chenglei Song
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Lebin Chang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Bingjie Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Zhe Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Yilin Wei
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Yaqing Dou
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Kunlong Qi
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Feng Yang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Xiuling Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Xinjian Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Kejun Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Ruimin Qiao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Xuelei Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
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19
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Dexamethasone affects the chemotaxis and phagocytic activity of neutrophils for boar spermatozoa and the quality of liquid preserved boar semen in vitro. Theriogenology 2023; 195:46-54. [DOI: 10.1016/j.theriogenology.2022.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 10/03/2022] [Accepted: 10/09/2022] [Indexed: 11/17/2022]
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20
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Contreras MJ, Núñez-Montero K, Bruna P, García M, Leal K, Barrientos L, Weber H. Bacteria and Boar Semen Storage: Progress and Challenges. Antibiotics (Basel) 2022; 11:antibiotics11121796. [PMID: 36551453 PMCID: PMC9774694 DOI: 10.3390/antibiotics11121796] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/03/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Porcine breeding today is based on artificial insemination with chilled semen. This is stored at 5 °C with antibiotic supplementation to avoid bacteriospermia. There are many negative consequences on sperm quality and functionality as a result of bacterial contamination, as well as on the health of the sow. Nowadays, various techniques are being developed to reduce the indiscriminate use of antibiotics and thus avoid the generation of antibiotic resistance genes. This review aims to inform about the bacterial contamination consequences of storing liquid semen from boar and to provide an update on current methods and alternatives to antibiotic use in cold storage.
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Affiliation(s)
- María José Contreras
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 01145, Chile
- Facultad de Ciencias Agropecuarias y Medioambiente, Universidad de La Frontera, Avenida Francisco Salazar, Temuco 01145, Chile
| | - Kattia Núñez-Montero
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 01145, Chile
- Biotechnology Research Center, Department of Biology, Instituto Tecnológico de Costa Rica, Cartago 30101, Costa Rica
| | - Pablo Bruna
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 01145, Chile
| | - Matías García
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 01145, Chile
| | - Karla Leal
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 01145, Chile
| | - Leticia Barrientos
- Extreme Environments Biotechnology Lab, Center of Excellence in Translational Medicine, Universidad de La Frontera, Av. Alemania 0458, Temuco 01145, Chile
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 01145, Chile
- Correspondence: (L.B.); (H.W.)
| | - Helga Weber
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 01145, Chile
- Center of Excellence in Traslational Medicine (CEMT), Universidad de La Frontera, Av. Alemania 0458, Temuco 01145, Chile
- Correspondence: (L.B.); (H.W.)
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Sánchez‐Sánchez R, Pérez‐Garnelo SS, Martín Lluch M, de la Cruz P, Falceto MV, Córdova‐Izquierdo A, Torner JG, Mitjana O, Suárez AE, Montull T, Ansó JG, Ansó T, Gómez‐Fidalgo E. Reproductive efficiency of sows inseminated at single dose fixed time with refrigerated, cryopreserved and encapsulated spermatozoa. Reprod Domest Anim 2022; 57 Suppl 5:90-93. [PMID: 35699357 PMCID: PMC9796075 DOI: 10.1111/rda.14179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 12/30/2022]
Abstract
The aim was to assess the reproductive efficiency of different techniques used to preserve spermatozoa in artificial insemination semen doses (AI-doses) by evaluating refrigeration at 15°C, cryopreservation and encapsulation. Forty-two hyperprolific sows were treated with buserelin and inseminated once at a single fixed time. The fertility rate, embryonic vesicles viability and the early embryonic mortality (arrested conceptuses) evaluated post-mortem at 24th day of pregnancy, were analysed in order to assess the effectiveness of each proposed technique. Results show an overall reduction on fertility using the three proposal sperm preservation techniques (69.27%, 60.00% and 78.75% for refrigerated, frozen-thawed and encapsulated AI-doses, respectively). Total number of embryonic vesicles was very similar among the three treatments; yet, the number of viable vesicles was numerically different among groups, and thus, embryonic viability was 79.25%, 80.0% and 87.15% for refrigerated, frozen-thawed and encapsulated AI-doses, respectively.
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Affiliation(s)
- Raúl Sánchez‐Sánchez
- Department of Animal ReproductionNational Institute for Agricultural and Food Research and Technology (INIA‐CSIC)MadridSpain
| | - Sonia S. Pérez‐Garnelo
- Department of Animal ReproductionNational Institute for Agricultural and Food Research and Technology (INIA‐CSIC)MadridSpain
| | - Mercedes Martín Lluch
- Department of Animal ReproductionNational Institute for Agricultural and Food Research and Technology (INIA‐CSIC)MadridSpain
| | - Paloma de la Cruz
- Department of Animal ReproductionNational Institute for Agricultural and Food Research and Technology (INIA‐CSIC)MadridSpain
| | - Maria V. Falceto
- Department of Animal PathologyVeterinary Faculty of ZaragozaZaragozaSpain
| | | | | | - Olga Mitjana
- Department of Animal PathologyVeterinary Faculty of ZaragozaZaragozaSpain
| | - Andrés E. Suárez
- Department of Animal PathologyVeterinary Faculty of ZaragozaZaragozaSpain
| | | | | | - Trinidad Ansó
- Porcine Artificial Insemination Center of Cinco Villas, Ejea de los CaballerosZaragozaSpain
| | - Ernesto Gómez‐Fidalgo
- Department of Animal ReproductionNational Institute for Agricultural and Food Research and Technology (INIA‐CSIC)MadridSpain
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22
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Tomás-Almenar C, de Mercado E. Optimization of the Thawing Protocol for Iberian Boar Sperm. Animals (Basel) 2022; 12:ani12192600. [PMID: 36230350 PMCID: PMC9558520 DOI: 10.3390/ani12192600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Limited attention is paid to sperm thawing protocols, and their study could be relevant to endangered species or breeds, especially for cryopreserved material present in the existing gene banks. The aim of this study was to determine the most optimal thawing protocol for Iberian boar sperm through testing different thawing rates and different modifications of the thawing extender. Based on the findings, the most optimal results were obtained thawing at 70 °C for 8 s with the inclusion of cyclodextrins loaded with cholesterol (CLC) in the extender, revealing the importance of adapting the thawing protocols. Abstract Thawing protocols have been barely studied, and their modifications may lead to a substantial improvement in post-thawing sperm quality, which could be of great relevance to existing sperm banks, such as those for Iberian pig breeds with varieties in danger of extinction. For that, the study aimed to evaluate different thawing rates and to evaluate modifications in the composition of the thawing extender (basic pH to 8–8.2, incorporation of cyclodextrins loaded with cholesterol [CLC] and the incorporation of ion chelators [EDTA and EGTA]). After thawing, overall sperm motility and kinematic parameters, acrosome status and sperm membrane integrity were evaluated. The most optimal results were obtained with the thawing rate reaching 70 °C for 8 s with the inclusion of 12.5 mg of CLC/500 × 106 spermatozoa in the thawing extender, which showed an improvement compared to the control at 70 °C. In conclusion, to adapt the thawing conditions may be relevant, especially for endangered species or breeds such as some varieties of Iberian pig, since this process could also be used in samples cryopreserved in gene banks.
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Boar seminal plasma improves sperm quality by enhancing its antioxidant capacity during liquid storage at 17°C. ZYGOTE 2022; 30:695-703. [DOI: 10.1017/s096719942200017x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Summary
The objective of this study was to investigate the effects of different levels of seminal plasma (SP) on boar sperm quality, antioxidant capacity and bacterial concentrations during liquid storage at 17°C. Boar sperm was diluted with Beltsville Thawing Solution (BTS) consisting of 0, 25, 50 and 75% (v/v) of SP. Total motility, progressive motility and dynamic parameters were assessed by the computer assisted sperm analysis (CASA) system. Acrosome and plasma membrane integrity were measured by FITC-PNA/DAPI and SYBR-14/PI staining, respectively. In addition, total antioxidant capacity (T-AOC), malondialdehyde (MDA) content, and reactive oxygen species (ROS) levels were detected using commercial assay kits. Bacterial concentrations were assessed by turbidimetric assay. Our results showed that 25% SP markedly improved total motility, progressive motility, sperm dynamic parameters, acrosome integrity compared with 0, 50 and 75% SP (P < 0.05). In addition, 25% SP significantly increased T-AOC but decreased MDA content and ROS levels compared with 0, and 75% SP (P < 0.05). Moreover, 25% SP significantly decreased the bacterial concentrations in extended semen compared with 50% and 75% SP, however, which was higher than with 0% SP (P < 0.05). These results suggest that 25% SP can promote boar sperm quality through enhancing its antioxidant capacity during liquid storage.
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24
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Zhu Z, Zhang W, Li R, Zeng W. Reducing the Glucose Level in Pre-treatment Solution Improves Post-thaw Boar Sperm Quality. Front Vet Sci 2022; 9:856536. [PMID: 35433908 PMCID: PMC9009312 DOI: 10.3389/fvets.2022.856536] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/18/2022] [Indexed: 11/13/2022] Open
Abstract
Frozen–thawed boar sperm was not widely used in pig artificial insemination as the sperm quality was damaged by biochemical and physical modifications during the cryopreservation process. The aim of this study was to investigate whether reduction of the glucose level in diluted medium could protect the post-thaw boar sperm or not. Boar sperm was diluted with the pre-treatment medium with different doses of glucose (153, 122.4, 91.8, 61.2, 30.6, and 0 mM) during the cooling process. The sperm motility patterns and glycolysis were evaluated during the cooling process. Meanwhile, the post-thaw sperm quality, ATP level, mitochondrial function as well as apoptosis were also measured. It was observed that 153 mM glucose treatment showed the highest glycolysis in boar sperm as the activities of hexokinase, fructose-bisphosphate aldolase A, and lactate dehydrogenase are the highest as well as the lactate level. Reduction of the glucose level from 153 to 30.6 mM suppressed sperm glycolysis. In addition, treatment with 153 mM glucose made the sperm demonstrate a circle-like movement along with a high value of curvilinear velocity and amplitude of the lateral head, while decreasing the glucose level reduced those patterns in the cooling process. Moreover, reduction of the glucose level also significantly increased the post-thaw sperm's total motility, progressive motility, straight-linear velocity, membrane integrity, and acrosome integrity. The treatment with 30.6 mM glucose showed the highest value among the treatments. Furthermore, the post-thaw sperm's succinate dehydrogenase activity, malate dehydrogenase activity, mitochondrial membrane potential as well as ATP level were increased by reducing the glucose level from 153 to 30.6 mM. Interestingly, the treatment with 30.6 mM glucose showed the lowest apoptosis of post-thaw sperm among the treatments. Those observations suggest that reduction of the glucose level in diluted medium increased the post-thaw boar sperm quality via decreasing the glycolytic metabolism. These findings provide novel insights that reduction of boar sperm activity via decreasing sperm glycolysis during the cooling process helps to improve the post-thaw sperm quality during cryopreservation.
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Affiliation(s)
- Zhendong Zhu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Weijing Zhang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Rongnan Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Wenxian Zeng
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
- *Correspondence: Wenxian Zeng
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25
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Takaesu N, Kanno C, Sugimoto K, Nagano M, Kaneko A, Indo Y, Imai H, Hirai H, Okamoto M, Sashika M, Shimozuru M, Katagiri S, Tsubota T, Yanagawa Y. Semen collection by urethral catheterization and electro-ejaculation with different voltages, and the effect of holding temperature and cooling rate before cryopreservation on semen quality in the Japanese macaque (Macaca fuscata). J Vet Med Sci 2022; 84:429-438. [PMID: 35067494 PMCID: PMC8983288 DOI: 10.1292/jvms.21-0590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In the Japanese macaque, semen has been collected by electro-ejaculation (EE), using the higher voltage stimuli compared to other species including genus Macaca. Semen coagulate immediately after ejaculation, which makes difficult to produce high-quality semen for artificial insemination. Recently, semen collection using urethral catheterization (UC) has been reported in carnivore and this technique may allow semen collection without coagulation in a less invasive manner. Further, the temporal preservation temperature and cooling rate of semen during cryopreservation affect post thawing sperm quality. In this study, to improve semen quality and quantity, as well as the animal welfare, semen collection was performed by EE with high (5-15 V) or low (3-6 V) voltage, UC and a combination of the two (EE-UC). It has been suggested that a high voltage is necessary for semen collection, but 10 V stimulation was effective enough and 15 V is for additional sperm collection. Also, liquid semen was collected by EE-UC and this could increase the total number of sperm. Further, to improve the post thawing sperm motility, semen was kept at four temperatures (4, 15, 25 and 37˚C) for 60 min, and processed with two cooling procedures (slow cooling before second dilution and fast cooling after second dilution). Holding semen at 25˚C and fast cooling after the second dilution maintained progressive motile sperm rate. The present results will contribute to the improvement of semen collection and animal welfare of Japanese macaques.
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Affiliation(s)
- Noboru Takaesu
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University
| | - Chihiro Kanno
- Laboratory of Clinical Veterinary Medicine for Large Animal, School of Veterinary Medicine, Kitasato University
| | - Kosuke Sugimoto
- Laboratory of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University
| | - Masashi Nagano
- Laboratory of Animal Reproduction, School of Veterinary Medicine, Kitasato University
| | | | - Yoriko Indo
- Primate Research Institute, Kyoto University
| | - Hiroo Imai
- Primate Research Institute, Kyoto University
| | | | | | - Mariko Sashika
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University
| | - Michito Shimozuru
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University
| | - Seiji Katagiri
- Laboratory of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University
| | - Toshio Tsubota
- Laboratory of Wildlife Biology and Medicine, Faculty of Veterinary Medicine, Hokkaido University
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Faculty of Veterinary Medicine, Hokkaido University
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26
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Li D, Zhang W, Tian X, He Y, Xiao Z, Zhao X, Fan L, Du R, Yang G, Yu T. Hydroxytyrosol effectively improves the quality of pig sperm at 17 °C. Theriogenology 2022; 177:172-182. [PMID: 34715542 DOI: 10.1016/j.theriogenology.2021.10.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/15/2021] [Accepted: 10/17/2021] [Indexed: 12/25/2022]
Abstract
Artificial insemination (AI) is a proven breeding technology which has been widely used in pig reproduction. Low temperature can cause very serious damage to pig sperm below 15 °C and the situation is even more serious at lower temperature. Besides, the preservation of pig sperm is mainly carried out at 17 °C because of its outstanding performance in pig reproduction. However, the accumulation of a large amount of reactive oxygen species (ROS) during the preservation process is the main reason for the deterioration of sperm quality. In our research, by adding different concentrations of hydroxytyrosol to the diluent during the storage of pig sperm at 17 °C, we compared them with the traditional diluent to study the sperm motility, the cumulative amount of ROS, the extent of sperm membrane damage, the sperm acrosome integrity, the sperm DNA damage and the activity of antioxidant enzymes (CAT, T-AOC, SOD, GSH-PX, MDA) to evaluate the effect of hydroxytyrosol on the sperm quality during storage. We used proteomics sequencing technology to monitor difference in sperm protein between the control samples and the addition of 120 μmol/L hydroxytyrosol samples (optimum concentration) after three days storage. Ultimately, we selected the control samples and the addition of 120 μmol/L hydroxytyrosol samples to test the effect of AI. The results of our research showed that during storage of pig sperm at 17 °C, the sperm quality and antioxidant capacity of the hydroxytyrosol-treated samples significantly improved (HT 120 μmol/L) (P < 0.05). Proteomics sequencing analysis proved that the addition of 120 μmol/L hydroxytyrosol treatment samples had potential value in improving sperm quality. The significant increase in sow pregnancy rate and piglet birth weight proved that hydroxytyrosol had important practical value in pig reproduction. Based on our results, we demonstrated that the addition of hydroxytyrosol to the diluent could improve the quality of pig sperm and the efficiency of AI.
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Affiliation(s)
- Dong Li
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Wenyu Zhang
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Xuekai Tian
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Yulin He
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Zitong Xiao
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Xin Zhao
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Lin Fan
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Renrang Du
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Gongshe Yang
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China
| | - Taiyong Yu
- Key Laboratory of Animal Gennetics, Breeding and Reproducation of Shaanxi Province, Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling Shaanxi, 712100, China.
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Ribas-Maynou J, Garcia-Bonavila E, Bonet S, Catalán J, Salas-Huetos A, Yeste M. The TUNEL assay underestimates the incidence of DNA damage in pig sperm due to chromatin condensation. Theriogenology 2021; 174:94-101. [PMID: 34425305 DOI: 10.1016/j.theriogenology.2021.08.024] [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: 05/21/2021] [Revised: 08/05/2021] [Accepted: 08/18/2021] [Indexed: 11/25/2022]
Abstract
Inconsistencies in the relationship between sperm DNA fragmentation and reproductive outcomes as well as the low incidence in farm animals raise concerns on its actual value as a sperm quality parameter. Previous studies suggested that the different sensitivity of techniques evaluating DNA fragmentation could explain variations in the correlation with reproductive outcomes. While the TUNEL assay is one of the most standardized methods to detect DNA damage and cell death, the steric impediment for the terminal nucleotidyl transferase enzyme to access the highly condensed sperm nucleus may decrease the ability of this test to detect internal DNA breaks. In the present study, we sought to determine whether increasing chromatin decondensation makes the TUNEL assay more sensitive to detect DNA damage in pig sperm. We compared three chromatin decondensation treatments (2 mM DTT for 45 min; 5 mM DTT for 8 min and further 45 min; and 5 mM DTT+ 1 M NaCl for 8 min) through the Chromomycin A3 test (CMA3). While incubation with DTT increased the percentages of sperm with decondensed chromatin, regardless of concentration and time of incubation (P < 0.05), the extent of that decondensation was higher when 5 mM DTT was combined with 1 M NaCl. In addition, the TUNEL assay detected a higher number of DNA breaks in sperm with decondensed chromatin (1.89% ± 1.63% vs 8.74% ± 6.05%; P = 0.003). This study shows, for the first time, that previous chromatin decondensation increases the sensitivity of the TUNEL assay to detect DNA damage in pig sperm. These findings also support that larger chromatin decondensation is needed in order for DNA damage to be evaluated properly in species containing protamine P1 only.
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Affiliation(s)
- Jordi Ribas-Maynou
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003, Girona, Spain; Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain.
| | - Estela Garcia-Bonavila
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003, Girona, Spain; Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain
| | - Sergi Bonet
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003, Girona, Spain; Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain
| | - Jaime Catalán
- Department of Animal Medicine and Surgery, Faculty of Veterinary Sciences, Autonomous University of Barcelona, ES-08193, Bellaterra, Cerdanyola del Vallès, Spain
| | - Albert Salas-Huetos
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003, Girona, Spain; Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain; Department of Nutrition, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA; Consorcio CIBER, M.P., Fisiopatología de la Obesidad y Nutrición (ciBeRobn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003, Girona, Spain; Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain
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28
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Pezo F, Yeste M, Zambrano F, Uribe P, Risopatrón J, Sánchez R. Antioxidants and their effect on the oxidative/nitrosative stress of frozen-thawed boar sperm. Cryobiology 2020; 98:5-11. [PMID: 33248047 DOI: 10.1016/j.cryobiol.2020.11.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/10/2020] [Accepted: 11/22/2020] [Indexed: 02/07/2023]
Abstract
In swine, the use of frozen-thawed boar sperm for artificial insemination remains a suboptimal reproductive technology. Among the negative effects of cryopreservation on sperm cells, it is worth highlighting that cryopreservation causes irreversible alterations in motility and components of the sperm membrane as a result of dramatic changes in temperature (cooling/freezing curve) and osmolality. In addition, freeze-thawing may induce oxidative stress and increase the generation of reactive oxygen species (ROS) and nitrogen reactive species (RNS). While boar sperm cryopreservation has been reported to increase lipid peroxidation and the intracellular levels of hydrogen peroxide, less research on its impact on RNS has been conducted. Furthermore, previous studies have investigated the effects of supplementing cryopreservation media with antioxidants to counteract the deleterious effects of ROS and RNS. Antioxidants of synthetic origin or natural extracts have been used, with some showing noticeable and positive effects on functional sperm parameters both in vitro and in vivo. The aim of this review is to provide an update on the effect of different molecules with antioxidant capacity on the function of cryopreserved boar sperm.
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Affiliation(s)
- Felipe Pezo
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile; Escuela de Medicina Veterinaria, Facultad de Recursos Naturales y Medicina Veterinaria, Universidad Santo Tomas, Chile
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Unit of Cell Biology, Department of Biology, Institute of Food and Agricultural Technology, Faculty of Sciences, University of Girona, Girona, Spain
| | - Fabiola Zambrano
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Pamela Uribe
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Internal Medicine, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Jennie Risopatrón
- Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Raúl Sánchez
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile.
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29
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Pezo F, Zambrano F, Uribe P, Risopatrón J, Moya C, Cesar de Andrade AF, Burgos RA, Yeste M, Sánchez R. Oxidative and nitrosative stress in frozen-thawed pig spermatozoa. II: Effect of the addition of saccharides to freezing medium on sperm function. Cryobiology 2020; 97:5-11. [PMID: 33121933 DOI: 10.1016/j.cryobiol.2020.10.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 10/26/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022]
Abstract
Saccharides have bioprotective properties, with a high capacity to preserve biological proteins and membranes during sperm cryopreservation. The aim of this study was to evaluate how replacing the lactose of cryopreservation media by sucrose (SUC) or trehalose (TRE) at concentrations of 0.2 M (SUC-1 and TRE-1) and 0.25 M (SUC-2 and TRE-2) affects frozen/thawed pig spermatozoa. The media used were composed of medium A (saccharide/egg yolk) and B (saccharide/egg yolk/glycerol), their osmolality being determined prior to freezing. Cell viability, membrane lipid disorder, acrosome integrity, mitochondrial membrane potential (MMP), lipid peroxidation, thiol group oxidation, total reactive oxygen species (ROS), peroxynitrite and superoxide anion (O2●-) were determined through flow cytometry; total motility (TM), progressive motility (PM) and kinetic parameters motility were determined immediately after thawing (T0) and again 30 (T30) and 60 (T60) minutes later. The SUC-2 and TRE-2 groups maintained viability significantly and presented fewer lipid membrane disorders, respectively, both with a significant increase in MMP. The production of O2●- and peroxynitrite was lower in the TRE-2 groups compared to the control (P < 0.05). Total motility at T0 was greater in the TRE-2 group (P < 0.05). Sperm kinetics was not affected by the treatment. The use of saccharides SUC and TRE at a concentration of 0.25 M improves sperm quality, so that both non-penetrating cryoprotectants can be utilized in pig sperm freezing media.
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Affiliation(s)
- Felipe Pezo
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile; Escuela de Medicina Veterinaria, Facultad de Recursos Naturales y Medicina Veterinaria, Universidad Santo Tomas, Chile
| | - Fabiola Zambrano
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Pamela Uribe
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Internal Medicine, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Jennie Risopatrón
- Department of Basic Science, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Claudia Moya
- Department of Agronomic Sciences and Natural Resources, Faculty of Agricultural Sciences and Forestry, Universidad de La Frontera, Temuco, Chile
| | - André Furugen Cesar de Andrade
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Rafael A Burgos
- Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Unit of Cell Biology, Department of Biology, Institute of Food and Agricultural Technology, Faculty of Sciences, University of Girona, Girona, Spain
| | - Raúl Sánchez
- Laboratory of Reproductive Medicine and Molecular Endocrinology, Center for Translational Medicine (CEMT-BIOREN), Universidad de La Frontera, Temuco, Chile; Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile.
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Tvrdá E, Debacker M, Ďuračka M, Kováč J, Bučko O. Quercetin and Naringenin Provide Functional and Antioxidant Protection to Stored Boar Semen. Animals (Basel) 2020; 10:E1930. [PMID: 33096604 PMCID: PMC7589831 DOI: 10.3390/ani10101930] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/18/2020] [Accepted: 10/19/2020] [Indexed: 02/07/2023] Open
Abstract
In this study, we evaluated the impact of 5-50 μM quercetin (QUE) and naringenin (NAR) on extended boar spermatozoa in the BTS (Beltsville Thawing Solution) medium for 72 h. Spermatozoa motion, membrane, acrosome, and DNA integrity were investigated immediately after sample dilution (0 h) as well as after 24 h, 48 h, and 72 h of semen storage. Furthermore, reactive oxygen species (ROS) and superoxide production, as well as the extent of oxidative damage to the sperm proteins and lipids, were assessed to determine the potential of QUE and NAR to prevent a potential loss of sperm vitality due to oxidative stress development. Our results indicate that the most notable parameter influenced by QUE was the mitochondrial activity, which remained significantly higher throughout the experiment (p < 0.001 and p < 0.0001; 10 μM), and which correlated with the most prominent maintenance of sperm motility (p < 0.01, 48 h; p < 0.05, 72 h). A significant membrane stabilization (p < 0.01, 24 h and 48 h; p < 0.0001, 72 h) and prevention of lipid peroxidation (p < 0.05, 24 h and 48 h; p < 0.01, 72 h) was primarily observed following administration of 10 and 25 μM NAR; respectively. Administration of 10 μM QUE led to a significant decrease of superoxide (p < 0.0001, 48 h and 72 h) while the most notable decline of ROS generation was recorded in the case of 10 and 25 μM NAR (p < 0.001). This study may provide new information on the specific mechanisms of action involved in the favorable effects of natural biomolecules on spermatozoa.
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Affiliation(s)
- Eva Tvrdá
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (M.Ď.); (J.K.)
| | - Mégane Debacker
- Condorcet—Hainaut Provincial High School, Chemin du Champ de Mars 17, 7000 Mons, Belgium;
| | - Michal Ďuračka
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (M.Ď.); (J.K.)
| | - Ján Kováč
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (M.Ď.); (J.K.)
| | - Ondřej Bučko
- Department of Animal Husbandry, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
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Proline Protects Boar Sperm against Oxidative Stress through Proline Dehydrogenase-Mediated Metabolism and the Amine Structure of Pyrrolidine. Animals (Basel) 2020; 10:ani10091549. [PMID: 32883027 PMCID: PMC7552335 DOI: 10.3390/ani10091549] [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: 07/14/2020] [Revised: 08/16/2020] [Accepted: 08/21/2020] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Reactive oxygen species that accumulate during liquid storage of boar semen lead to oxidative stress to sperm. In this study, we found that proline significantly improved boar sperm quality and protected sperm against oxidative damages during liquid storage at 17 °C. Using the model of artificially induced oxidative stress, we found that proline exerted an antioxidative role by modulating redox homeostasis in boar sperm. The secondary amine structure of proline and proline dehydrogenase-mediated metabolism are involved in the antioxidative role. We suggest that addition of proline to the extender would be beneficial to improve boar sperm quality. Abstract Proline was reported to improve sperm quality in rams, stallions, cynomolgus monkeys, donkeys, and canines during cryopreservation. However, the underlying mechanism remains unclear. The aim of this study was to investigate the effect of proline on boar semen during liquid storage at 17 °C and explore the underlying mechanism. Freshly ejaculated boar semen was supplemented with different concentrations of proline (0, 25, 50, 75, 100, 125 mM) and stored at 17 °C for nine days. Sperm motility patterns, membrane integrity, ATP (adenosine triphosphate), reactive oxygen species (ROS), and GSH (glutathione) levels, and the activities of catalase (CAT) and superoxide dismutase (SOD) were evaluated after storage for up to five days. It was observed that boar sperm quality gradually decreased with the extension of storage time, while the ROS levels increased. Addition of 75 mM proline not only significantly improved sperm membrane integrity, motility, and ATP levels but also maintained the redox homeostasis via increasing the GSH levels and activities of CAT and SOD. When hydrogen peroxide (H2O2) was used to induce oxidative stress, addition of proline significantly improved sperm quality and reduced ROS levels. Moreover, addition of proline also improved sperm quality during the rapid cooling process. Notably, addition of DL-PCA (DL-pipecolinic acid) rescued the reduction of progressive motility and total motility caused by H2O2, and THFA (tetrahydro-2-furoic acid) failed to provide protection. Furthermore, addition of proline at 75 mM increased the activity of proline dehydrogenase (PRODH) and attenuated the H2O2-induced reduction in progressive motility. These data demonstrate that proline protects sperm against oxidative stress through the secondary amine structure and proline dehydrogenase-mediated metabolism.
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Long-term storage of boar seminal doses contaminated with Proteus vulgaris: A dose-dependent effect on sperm motility and sperm-bacteria interaction. Anim Reprod Sci 2020; 216:106349. [PMID: 32414461 DOI: 10.1016/j.anireprosci.2020.106349] [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: 12/17/2019] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 02/06/2023]
Abstract
This study evaluated how Proteus vulgaris affects sperm quality and sperm-bacteria interaction in stored semen samples. A strain of P. vulgaris resistant to streptomycin, penicillin, lincomycin and spectinomycin was added to boar semen in doses of 103, 105, 106, 107 and 108 CFU/mL. A sample in which there was no addition of P. vulgaris was the negative control. Sperm quality was determined by evaluating sperm motility and morphology using the computer-assisted sperm analysis (CASA) system, and plasma membrane and acrosome integrity using flow cytometry at 0, 1, 2, 4, 6, 8 and 10 days of liquid-storage at 17 °C. At the same time points, pH, sperm agglutination, sperm-bacteria interaction and bacterial growth were also assessed. There was impaired sperm motility when the infective doses of P. vulgaris were equal to or greater than 105 CFU/mL with the effect being dose-dependent (P < 0.05). When infective doses of P. vulgaris were of 106 to 108 CFU/mL there were impairments of plasma membrane and acrosome integrity by Day 1 of storage (P < 0.05), and alkalinisation of the storing medium by Day 4 (P < 0.05). Bacterial adhesion increased when infective dose of P. vulgaris was greater and as duration of storage increased. P. vulgaris had a high affinity for the mid- and principal pieces of sperm cells. It is concluded there were alterations in sperm motility in samples infected with P. vulgaris that were associated with bacterial adhesion and medium alkalinisation.
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Yang K, Wang N, Guo HT, Wang JR, Sun HH, Sun LZ, Yue SL, Zhou JB. Effect of L-carnitine on sperm quality during liquid storage of boar semen. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2019; 33:1763-1769. [PMID: 32054191 PMCID: PMC7649068 DOI: 10.5713/ajas.19.0455] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 11/12/2019] [Indexed: 12/18/2022]
Abstract
Objective This study was conducted to investigate the effect of L-carnitine on the pig semen characteristics during storage. Methods Spermatozoa samples were examined for spermatozoa quality and then randomly divided into 5 groups: 0 (control), 12.5, 25, 50, and 100 mM L-carnitine. Sperm motility, plasma membrane integrity and antioxidant parameters (total reactive oxygen species, total antioxidant capacity, and malondialdehyde) were evaluated after 0, 3, 5, and 10 day cooled-storage at 17°C. Moreover, ATP content, mitochondria activity as well as sperm-binding and in vitro fertilizing ability of preserved boar sperm were also investigated. Results Supplementation with 50 mM L-carnitine could effectively maintain boar sperm quality parameters such as sperm motility and membrane integrity. Besides, we found that L-carnitine had positive effects on boar sperm quality mainly through improving antioxidant capacities and enhancing ATP content and mitochondria activity. Interestingly, by assessing the effect of L-carnitine on sperm fertility and developmental potential, we discovered that the extender containing L-carnitine could improve sperm quality and increase the number of sperms bounding to zona pellucida, without improving in vitro fertility and development potential. Conclusion These findings suggested that the proper addition of L-carnitine to the semen extender improved boar sperm quality during liquid storage at 17°C.
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Affiliation(s)
- Kang Yang
- Department of Biotechnology, College of Life Science Northeast Agricultural University, Harbin 150030, China
| | - Na Wang
- Department of Biotechnology, College of Life Science Northeast Agricultural University, Harbin 150030, China
| | - Hai-Tao Guo
- Department of Biotechnology, College of Life Science Northeast Agricultural University, Harbin 150030, China
| | - Jing-Ran Wang
- Department of Biotechnology, College of Life Science Northeast Agricultural University, Harbin 150030, China
| | - Huan-Huan Sun
- Department of Biotechnology, College of Life Science Northeast Agricultural University, Harbin 150030, China
| | - Liang-Zhen Sun
- Department of Biotechnology, College of Life Science Northeast Agricultural University, Harbin 150030, China
| | - Shun-Li Yue
- Department of Biotechnology, College of Life Science Northeast Agricultural University, Harbin 150030, China.,Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China
| | - Jia-Bo Zhou
- Department of Biotechnology, College of Life Science Northeast Agricultural University, Harbin 150030, China.,Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China
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Wang N, Yang K, Guo HT, Wang JR, Sun HH, Wang SW, Sun M, Sun LZ, Yue SL, Zhou JB. Protective influence of rosiglitazone against time-dependent deterioration of boar spermatozoa preserved at 17°C. Reprod Domest Anim 2019; 54:1069-1077. [PMID: 31099063 DOI: 10.1111/rda.13469] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 05/12/2019] [Indexed: 11/28/2022]
Abstract
Spermatozoa are highly specialized cells, and energy metabolism plays an important role in modulating sperm viability and function. Rosiglitazone is an antidiabetic drug in the thiazolidinedione class that regulates metabolic flexibility and glucose uptake in various cell types, but its effects on boar sperm metabolism are unknown. In this study, we investigated the potential effect of rosiglitazone against time-dependent deterioration of boar spermatozoa during liquid preservation at 17°C. Freshly ejaculated semen was diluted with Beltsville Thawing Solution (BTS) containing different concentrations of rosiglitazone, and the motility, membrane and acrosome integrity of sperm were detected. Besides, we measured glucose uptake capacity, l-lactate production level, mitochondrial membrane potential, adenosine triphosphate (ATP) content and mitochondrial reactive oxygen species (mROS) production of sperm after boar semen had been incubated with or without rosiglitazone, iodoacetate (glycolysis inhibitor) and rotenone (electron transport chain inhibitor) for 5 days. The addition of rosiglitazone significantly enhanced sperm quality and had a strong protective effect on the sperm membrane and acrosome integrity during storage. BTS containing 50 μM rosiglitazone maintained the total motility of liquid-preserved sperm above 60% for 7 days. Rosiglitazone improved sperm quality by regulating energy metabolism manner of preserved sperm, protected the sperm mitochondrial membrane potential, enhanced sperm ATP production and in the meanwhile reduced mROS through enhancing glycolysis but not oxidative phosphorylation. The data suggested the practical feasibility of using rosiglitazone for improving boar spermatozoa quality during semen preservation.
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Affiliation(s)
- Na Wang
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Kang Yang
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Hai-Tao Guo
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Jing-Ran Wang
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Huan-Huan Sun
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Shun-Wei Wang
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Meng Sun
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Liang-Zheng Sun
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Shun-Li Yue
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
| | - Jia-Bo Zhou
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, College of Life Science, Northeast Agricultural University, Harbin, China
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In Vitro Effects of Tea Tree Oil (Melaleuca Alternifolia Essential Oil) and its Principal Component Terpinen-4-ol on Swine Spermatozoa. Molecules 2019; 24:molecules24061071. [PMID: 30893764 PMCID: PMC6471158 DOI: 10.3390/molecules24061071] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/11/2019] [Accepted: 03/15/2019] [Indexed: 12/12/2022] Open
Abstract
The growing interest towards essential oils stems from their biological capabilities that include antibacterial and antioxidant effects. Such properties may be extremely useful in the reproductive field; nonetheless essential oils show toxic effects that can lead to cell disruption. The present study aimed to evaluate and compare the effects of tea tree oil (TTO) and its principal component terpinen-4-ol (TER) on the morpho-functional parameters of swine spermatozoa. Experimental samples were prepared by suspending 15 × 107 spermatozoa in 5 mL of medium with different concentrations of the above-mentioned compounds: from 0.2 to 2 mg/mL at an interval of 0.2 for TTO, while TER concentrations were adjusted according to its presence in TTO (41.5%). After 3 h incubation at 16 °C, samples were analyzed for pH, viability, acrosome status, and objective motility. The results highlighted a concentration-dependent effect of TTO with total motility as the most sensitive parameter. TER was better tolerated, and the most sensitive parameters were related to membrane integrity, suggesting a different pattern of interaction. The study confirms the importance of evaluating the effects of natural compounds on spermatozoa before exploiting their beneficial effects. Spermatozoa seem to be good candidates for preliminary toxicological screenings in the light of their peculiar properties.
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