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Waberski D, Luther AM. Boar semen storage at 5 °C for the reduction of antibiotic use in pig insemination: Pathways from science into practice. Anim Reprod Sci 2024:107486. [PMID: 38704330 DOI: 10.1016/j.anireprosci.2024.107486] [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: 02/27/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/06/2024]
Abstract
Storage of boar semen at 5 °C instead of the conventional temperature of 17 °C is an innovative preservation concept. It enhances protection against the growth of bacteria normally occurring in the ejaculates and potential drug-resistant contaminants from the environment. Thereby it allows the reduction or even elimination of antibiotics in porcine semen extenders. The present article reviews the current state of the low-temperature preservation approach of boar semen, with a special focus on antimicrobial efficiency and fertility in field insemination trials. Particularly the role of semen extenders and temperature management for the achievement of high fertility and biosecurity are elucidated. Insemination data of 1,841 sows in there different countries revealed equally high farrowing rates and litter sizes of semen stored at 5 °C compared to the controls stored at 17 °C. Microbiology data obtained from semen doses spiked with multi-drug resistant bacteria showed the efficiency of the cold semen storage for inhibiting the growth of Serratia marcescens, a bacterial species with high sperm-toxicity. Evolving concepts on the physiological role of the male reproductive microbiome for female fertility provides a further argument against the complete eradication of bacteria in the semen dose by antibiotic additives to the extenders. Finally, motivation and practical considerations for the use of the novel preservation tool in artificial insemination of pigs are revealed, which might encourage the transformation towards a sustainable production of boar semen doses following the One Health approach.
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Affiliation(s)
- Dagmar Waberski
- Unit for Reproductive Medicine/Clinic for Swine and Small Ruminants, University of Veterinary Medicine Hannover, Bünteweg 15, Hannover D-30559, Germany.
| | - Anne-Marie Luther
- Unit for Reproductive Medicine/Clinic for Swine and Small Ruminants, University of Veterinary Medicine Hannover, Bünteweg 15, Hannover D-30559, Germany
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Paul DR, Talukdar D, Ahmed FA, Lalrintluanga K, Kalita G, Tolenkhomba TC, Chakravarty H, Katiyar R, Khargharia G, Deori S. Effect of selenium nanoparticles on the quality and fertility of short-term preserved boar semen. Front Vet Sci 2024; 10:1333841. [PMID: 38322425 PMCID: PMC10844516 DOI: 10.3389/fvets.2023.1333841] [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: 11/06/2023] [Accepted: 12/27/2023] [Indexed: 02/08/2024] Open
Abstract
This study was carried out to investigate the effect of different concentrations of selenium nanoparticles (Se-NPs) in the Beltsville Thawing Solution (BTS) extender on the semen quality and fertility of Hampshire crossbred pigs. For the study, semen was collected from four boars (10 ejaculates/boar) by the gloved hand method. Each ejaculate was extended @ 1:2 with the BTS extender and split into four aliquots. The control (C) samples were without the supplementation of Se-NPs, whereas the other three were supplemented with 0.5 (T1), 1 (T2), and 2 μg ml-1 of Se-NPs (T3) and stored at 15°C in a BOD incubator. Extended semen was evaluated at 0 (immediately after dilution), 24, 48, 72, and 96 h of storage for sperm motility, live sperm, plasma membrane integrity, acrosome integrity, DNA integrity, and mitochondrial membrane potential (MMP). The mean percentage of sperm motility, live sperm, and sperm with intact plasma membrane and acrosome, and MMPs were significantly (p < 0.01) higher in all treated groups in comparison to control at 24, 48, 72, and 96 h of storage. Sperm with intact DNA in all treated groups increased significantly at 48 (p < 0.05), and 72 and 96 (p < 0.01) h of storage in comparison to the control group. The concentration of 1 μg ml-1 of Se-NPs was found to be the best among other concentrations. In each group, 10 sows were artificially inseminated with the liquid semen preserved for 72 h at 15°C. Supplementation of 1 μg ml-1 of Se-NPs yielded the highest conception rate in comparison to other groups. In conclusion, supplementation of 1 μg ml-1 of Se-NPs in the BTS extender resulted in the best semen quality and conception rate during the short-time liquid preservation of boar semen.
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Affiliation(s)
- Dipan Rudra Paul
- College of Veterinary Sciences & A.H, Central Agricultural University, Aizawl, Mizoram, India
| | - Dibyajyoti Talukdar
- College of Veterinary Sciences & A.H, Central Agricultural University, Aizawl, Mizoram, India
| | - Fazal Ali Ahmed
- College of Veterinary Sciences & A.H, Central Agricultural University, Aizawl, Mizoram, India
| | - K. Lalrintluanga
- College of Veterinary Sciences & A.H, Central Agricultural University, Aizawl, Mizoram, India
| | - Girin Kalita
- College of Veterinary Sciences & A.H, Central Agricultural University, Aizawl, Mizoram, India
| | - T. C. Tolenkhomba
- College of Veterinary Sciences & A.H, Central Agricultural University, Aizawl, Mizoram, India
| | - Himsikha Chakravarty
- Division of Animal and Fisheries Sciences, ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Rahul Katiyar
- Division of Animal and Fisheries Sciences, ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Gautam Khargharia
- Division of Animal and Fisheries Sciences, ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
| | - Sourabh Deori
- Division of Animal and Fisheries Sciences, ICAR Research Complex for NEH Region, Umiam, Meghalaya, India
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