China Animal Husbandry and Veterinary Medicine ›› 2021, Vol. 48 ›› Issue (7): 2467-2474.doi: 10.16431/j.cnki.1671-7236.2021.07.022

• Genetics and Breeding • Previous Articles     Next Articles

Effects of Different Breeds,Months,Ages and Interval of Semen Collection on Semen Quality in Boars

YANG Wenpan1,3,4, ZENG Xuejun1,3,4, CHEN Menghui1,3,4, DENG Pingfang1,3,4, DENG Zheng1,3,4, DING Nengshui1,2,3,4   

  1. 1. Fujian Aonong Biological Science and Technology Group Co., Ltd., Zhangzhou 363000, China;
    2. State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang 330045, China;
    3. Key Laboratory of Swine Nutrition and Feed Science of Fujian Province, Zhangzhou 363000, China;
    4. Research Insitute of Fujian Aonong Biological Science and Technology Group Co., Ltd., Zhangzhou 363000, China
  • Received:2021-02-23 Online:2021-07-20 Published:2021-07-15

Abstract: In order to study the effects of different breeds,months,ages and interval of semen collection on semen quality of Canadian boars,and the effects of breeds and age of the first semen collection on semen quality stability,in this study,79 Canadian Large White,Landrace and Duroc boars from a boar station in Jiangxi province were selected as the experimental population.The data of semen collection and semen quality of 3 921 boars from December 2018 to December 2020 were collected.The effects of various factors on semen volume,semen concentration,sperm motility,total sperm number and stability were explored by mixed linear modelandanalysis of variance.The semen volume and total sperm number of Landrace boars were higher than those of Large White and Duroc boars,but the semen concentration of Duroc boars was higher than that of Landrace and Large White boars,and the sperm motility of Duroc boars was the lowest.In different months,the concentration of semen collected in 1 to 3 months was the highest,the motility of semen collected in 4 to 6 months was the highest,the volume of semen collected and the total number of sperm collected in 10 to 12 months were the highest,and the semen dose showed the seasonal variation of more in autumn and winter and less in spring and summer.There were also differences in semen quality traits among boars at different ages.The smaller the age was,the lower the semen volume was.However,the semen concentration was higher and the sperm motility was relatively better.The total sperm number was the highest at the best age of 19 to 24 months.The longer the interval was,the better the semen volume,semen concentration,sperm motility and total sperm number were.When the interval was 7 days,the comprehensive performance was the best,but the longer the interval was,the lower the sperm motility was.The stability of total sperm number in Landrace and Large White boars were significantly better than that in Duroc boars (P<0.05).This results showed that breed,month of sperm collection,age of sperm collection and interval of sperm collection all affected boar semen quality traits.Paying attention to these factors would help boar station to make more perfect production plan and improve the utilization rate in boars.

Key words: boars; semen qualitytraits; breed; month of semen collection; age of semen collection month; semen collection interval

CLC Number: