China Animal Husbandry and Veterinary Medicine ›› 2023, Vol. 50 ›› Issue (5): 1938-1946.doi: 10.16431/j.cnki.1671-7236.2023.05.021

• Genetics and Breeding • Previous Articles     Next Articles

Effects of Different Breeds,Seasons and Month Ages on Semen Quality of Boars

SONG Chenglei1, ZHANG Zhe1, WEI Yilin1, YANG Songbai2, DOU Yaqing1, LI Chenlei1, LIU Yingke1, LI Xinjian1, YANG Feng1, LI Xiuling1, WANG Kejun1, QIAO Ruimin1, HAN Xuelei1   

  1. 1. College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China;
    2. Henan Yifa Animal Husbandry Co., Ltd., Hebi 456250, China
  • Received:2022-11-15 Online:2023-05-05 Published:2023-04-28

Abstract: 【Objective】 This study was amied to explore the effects of different breeds,seasons and ages of semen collection on semen quality of French boars,and compare the storage effect of semen of different breeds at room temperature.【Method】 278 Duroc,Landrace and Yorkshire boars were selected as the experimental group.17 960 semen records were collected from a boar station in 2021.The general linear model and variance analysis were used to investigate the effects of breeds,seasons and ages of semen collection on semen volume,semen concentration,sperm motility and total sperm count.At the same time,15 samples with sperm motility ≥90% and forward motility ≥80% were selected from each breed respectively in summer, then diluted for 7 days in room temperature preservation test to compare the effects of normal temperature preservation of semen of different breeds of boars.【Result】 The semen volume and total sperm count of Landrace boars were significantly higher than those of Duroc and Yorkshire boars (P<0.05),the semen concentration of Duroc boars was significantly higher than that of Landrace and Yorkshire boars (P<0.05),and the sperm motility of Duroc boars was significantly lower than that of Landrace and Yorkshire boars (P<0.05).The sperm motility and progressive motility decreased gradually with the extension of room temperature storage time.The sperm of Landrace boars had the best effect in room temperature storage in summer,while that of Duroc boars had the worst effect.The semen volume of all breeds in autumn and winter was significantly higher than that in spring and summer (P<0.05),the total sperm count in spring and winter was significantly higher than that in summer and autumn (P<0.05),the semen concentration in spring was significantly higher than that in other seasons (P<0.05),and the sperm motility of all breeds of boars was the highest in winter and the lowest in summer,and the differences were significant (P<0.05).The semen volume and total sperm count of Landrace boars in different seasons were significantly higher than those of Duroc and Yorkshire boars (P<0.05).When the semen collection age was ≤30,the semen volume was smaller with the younger boar,but the semen concentration was higher and sperm motility was better.The total sperm count of the boar group,Landrace and Yorkshire boars at 19-24 months and Duroc boars at 13-18 months were significantly higher than those of other months (P<0.05).【Conclusion】 Breed,season and age of semen collection all affected semen quality of boars,and there were some differences in the storage effect of semen of different breeds at room temperature,which provided reference for making production plan of boar station,and contributed to further fine management of boar station and improving utilization rate of boar.

Key words: boar; semen quality; breed; season of semen collection; age of semen collection; room temperature preservation

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