Effect of additives in semen extender on post thaw sperm quality and plasma membrane protein profile of boar semen

S K BAISHYA; R K BISWAS; G KADIRVEL; D R THAKURIA

doi:10.56093/ijans.v85i6.49287

Authors

S K BAISHYA Programme Coordinator (I/C), KVK, ICAR Research Complex for NEH Region, Umiam, Umroi Road, Meghalaya 793103 India
R K BISWAS Professor, Department of Animal Reproduction, Gynaecology and Obstetrics, AAU, Khanapara, Guwahati, Asom
G KADIRVEL Senior Scientist, Livestock Production Division. ICAR Research Complex for NEH Region, Umiam, Umroi Road, Meghalaya 793103 India
D R THAKURIA Teacher, JNV, Doley Gaon, Morigaon, Asom. ICAR Research Complex for NEH Region, Umiam, Umroi Road, Meghalaya 793103 India

https://doi.org/10.56093/ijans.v85i6.49287

Keywords:

Additive, Boar semen, Butylated hydroxytoluene, Cholesterol-loaded methyl-ÃŸ-cyclodextrin, Semen, Sperm quality

Abstract

The objective of the study was to evaluate the effect of butylated hydroxytoluene (BHT), cholesterol-loaded methyl-ß-cyclodextrin (CLC), and their combination on sperm motility, viability, plasma membrane integrity and membrane protein profile of frozen-thawed boar semen. Ejaculates (16) from 6 boars were utilized. Each ejaculate was split into 4 fractions and cryopreserved in semen extender containing BHT (0.2 mM), CLC at 5 mg/ 200–240 × 10⁶ sperm, BHT (0.2 mM) plus CLC at 5 mg/ 200–240 × 10⁶ sperm or without BHT and CLC. Semen samples were evaluated for sperm motility, viability (propidium iodide assay), plasma membrane integrity (HOST) and membrane protein profile (SDS-PAGE) after equilibration and after freezing. The supplementation of BHT, CLC, and BHT plus CLC in semen extender significantly improved the viability and plasma membrane integrity after freezing as compared to control. Post thaw sperm motility was also significantly higher in BHT and BHT plus CLC. In addition, the number of sperm plasma membrane protein loss was less in additive treated sperm as compared to that in non-additive treated sperm. Among the additives, BHT plus CLC showed a significant improvement on post thaw sperm motility along with a non-significant improvement on other sperm parameters as compared to BHT and CLC alone. In conclusion, the supplementation of BHT, and CLC in extender before freezing improved the quality of cryopreserved boar semen and, the beneficial effect was more pronounced when BHT was combined with CLC than with BHT and CLC alone.

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