China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (10): 3879-3890.doi: 10.16431/j.cnki.1671-7236.2022.10.020

• Genetics and Breeding • Previous Articles     Next Articles

Effects of Breeds,Seasons,Parity,Month Ages and Interval of Semen Collection for Semen Quality in Pigs

ZHANG Xiaoke1, LIAO Weili1, LI Yao2, WU Yuwei1, ZHUANG Rubai2, JIA Baiwei2, YUAN Xiaolong1, LI Jiaqi1, HUANG Xiang2, ZHANG Hao1   

  1. 1. College of Animal Science, South China Agricultural University, Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, National Engineering Research Center for Swine Breeding Industry, Guangzhou 510642, China;
    2. Guangdong Guyue Technology Co., Ltd., Guangzhou 510980, China
  • Received:2022-04-12 Online:2022-10-05 Published:2022-09-30

Abstract: 【Objective】 This study was aimed to explore the effects of breeds,boar birth parities,number of boar piglets in the same litter,number of boar nipples,sperm collection seasons,sperm collection month ages and sperm collection intervals on boar semen quality,as well as the effect of different breeds on the stability of semen quality.【Method】 A total of 27 408 semen records were collected from 909 Duroc,Landrace and Yorkshire boars in a boar station from April 2021 to April 2022.The records were analyzed by the mixed linear analysis model and variance analysis to explore the effects of breeds,boar birth parities,number of boar piglets in the same litter,number of boar nipples,sperm collection seasons,sperm collection month ages and sperm collection intervals on semen volume,semen concentration,sperm motility,proportion of straight moving sperm,sperm malformation rate,total sperm count and stability of semen traits.【Result】 From the effect of different breeds on semen quality,the results show that semen volume and total sperm count of Landrace were significantly higher than those of Yorkshire and Duroc pigs(P<0.05),semen concentration of Duroc pigs was significantly higher than that of Yorkshire and Landrace pigs (P<0.05),sperm motility of Duroc and Yorkshire pigs were significantly higher than that of Landrace pigs (P<0.05),and proportion of straight moving sperm of Yorkshire pigs was significantly higher than that of Landrace and Duroc pigs (P<0.05),sperm malformation rate of Landrace and Yorkshire pigs was significantly lower than that of Duroc pigs (P<0.05).From the effect of different boar birth parities on semen quality,boars born from 1st~3rd parities had higher semen quality.From the effect of different semen collection seasons on semen quality,semen concentration,sperm motility and total sperm count in autumn and winter were significantly higher than those of spring and summer(P<0.05).From the effect of different month ages of semen collection on semen quality,boars aged from 16 to 25 months old had higher semen quality.From the effect of different semen collection intervals on semen quality,4 to 5 days was the best semen collection interval,and long semen collection interval would lead an increasing of sperm malformation rate.From the total number of nipples of different boars,when the number of nipples was 13 to 16,the quality of each semen character was at a medium level,which was conducive to the production and application of boars.The stability trends of semen traits were different from three breeds,semen volume and sperm motility of Duroc and Yorkshire pigs were significantly higher than that of Landrace pigs (P<0.05).Semen concentration,sperm malformation rate and total sperm count of Duroc pigs were significantly higher than that of Yorkshire pigs (P<0.05).proportion of straight moving sperm in Yorkshire pigs was significantly higher than that of Landrace and Duroc pigs (P<0.05).Among the breeds,the stability of Landrace pigs was poor.The stability of sperm motility was the best among all semen traits.【Conclusion】 The breeds,boar birth parities,sperm collection seasons,sperm collection month ages and sperm collection intervals would affect boar semen quality.These factors must be highlighted,which could help to formulate more perfect selection schemes of boar stations in different breeds,improve semen quality and accelerate boar genetic improvement.

Key words: pigs; semen traits; month ages; interval of semen collection; stability of semen traits

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