China Animal Husbandry and Veterinary Medicine ›› 2023, Vol. 50 ›› Issue (6): 2363-2369.doi: 10.16431/j.cnki.1671-7236.2023.06.020

• Genetics and Breeding • Previous Articles     Next Articles

Effects of Sodium Pyruvate on the Quality of Frozen Goat Sperm

LYU Chunrong1, LIANG Jiachong1, SHAO Qingyong1, WU Guoquan1, ZHANG Yumei2, QUAN Guobo1   

  1. 1. Yunnan Provincial Laboratory of Livestock and Poultry Genetic Resources Protection and Germplasm Innovation Engineering, National Regional (Yunnan Province) Gene Bank of Livestock and Poultry Genetic Resources, Yunnan Academy of Animal Husbandry and Veterinary Sciences, Kunming 650224, China;
    2. Agricultural and Rural Service Center of Yuanma Town, Yuanmou County, Yuanmou 651300, China
  • Received:2022-11-24 Online:2023-06-05 Published:2023-05-30

Abstract: 【Objective】 The aim of this study was to explore the effects of sodium pyruvate on the quality of frozen sperm of goat.【Method】 Semen of 6 Yunshang Black goats was collected by pseudoginosis method, and diluted with Optidyl diluent containing 0, 1, 5, 10 and 20 μmol/L sodium pyruvate.The total motility (TM) and progressive motility (PM) were measured by SCA automatic semen analyzer, the plasma membrane integrity was measured by hypotonic tolerance test (HOST).Acrosomal integrity, phosphatidylserine (PS) distribution and reactive oxygen species (ROS) were measured by flow cytometry.【Result】 The results showed that compared with 0 μmol/L sodium pyruvate group, the TM and PM indices of sperm in 1 and 5 μmol/L sodium pyruvate groups were extremely significantly improved (P<0.01), but there was no significant difference among other treatment groups (P>0.05). Curvilineal velocity and average velocity, slide swing, whip times, plasma membrane integrity, acrosome integrity rate, ROS level of sperm in 1 and 5 μmol/L sodium pyruvate groups were extremely significantly or significantly increased (P<0.01 or P<0.05). Flow analysis results showed that the proportion of normal sperm was significantly higher than that in 0 μmol/L sodium pyruvate group when the concentration of sodium pyruvate was 1, 5 and 10 μmol/L (P<0.05).【Conclusion】 In this study, adding sodium pyruvate into diluent could effectively reduce the damage to goat sperms during freezing and thawing, and significantly improve the locomotor ability, structural integrity and antioxidant activity of frozen sperms.A small amount of sodium pyruvate showed an improvement effect on sperm, while an excessive amount of sodium pyruvate showed a negative effect.The optimum concentration was 1 μmol/L in this experiment.

Key words: goat semen; sodium pyruvate; freeze; antioxidant; reactive oxygen species

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