摘要
为探讨中原地区种公牛精液品质随品种、年份、季节、年-季等因素的变化规律及各品种精液品质间的相关性,本试验收集河南省鼎元种牛育种有限公司种公牛站5个品种(安格斯牛、荷斯坦牛、利木赞牛、夏洛来牛和西门塔尔牛)种公牛的16502条精液采集及生产记录,分析不同因素及其互作效应对种公牛精液品质的影响,计算各精液参数间的相关性。结果表明:冻精数量和次均精液量的相关系数在0.24~0.49之间,次均精液量及精液密度的相关系数范围为-0.24~0.07,冻精数量和精液密度的相关系数为0.13~0.30;不同品种各精液品质间的相关系数有差异,安格斯公牛各精液品质间的相关系数在5个公牛品种中最高。品种、采精年份、采精季度、采精年-季均对冻精数量、次均精液量及精液密度有极显著影响(P<0.01)。针对冻精数量、次均精液量及精液密度3个方面而言,表现最好的品种分别是西门塔尔牛、夏洛来牛及荷斯坦牛,冻精数量、次均精液量及精液密度的最高值分别出现在秋季、夏季及春季。综上,5个品种中,西门塔尔牛的精液品质优于其余4个品种;中原地区环境下,秋季、夏季及春季的公牛的精液品质较好,更利于优质冻精生产。
To study the changing laws of bull semen quality with breeds,semen collection year,season,semen collection year-season,and the correlation between different semen qualities,16502 records of semen collection and production from 5 breeds(Anqus,Holstein,Limousin,Charolais,and Simmental)in the Breeding Bull Station of Henan Dingyuan Co.,Ltd.were collected.The effect of these factors and the correlation on bull's semen quality was analysed.The results showed that the correlation between the number of frozen semen and the average semen volume ranged from 0.24 to 0.49,between the average semen volume and the semen density ranged from-0.24 to 0.07,between the frozen semen number and semen density ranged from 0.13 to 0.30,respectively.The correlation coefficients of semen quality of different breeds are different,and the correlation coefficients between semen quality of Angus bulls occupies the highest value among the five breeds.Breed,semen collection year,semen collection season,year&quarter have extremely significant effects on semen quality(P<0.01).In terms of the number of frozen semen,average semen volume per time and semen density,the best performing breeds are Simmental,Charolais and Holstein;the highest values of semen quality in the three aspects appeared in autumn,summer and spring,respectively.Among the five breeds,the semen quality of Simmental is better than the other four breeds;under the environment of the Central Plains,the semen quality of bulls in autumn,summer and spring is higher,which is more conducive to the production of high-quality frozen semen.
作者
栗敏杰
衡军材
汪聪勇
高汉婷
李若玺
高留涛
LI Minjie;HENG Juncai;WANG Congyong;GAO Hanting;LI Ruoxi;GAO Liutao(Henan Dingyuan Breeding Cattle Co.,Ltd.,Zhengzhou,Henan 451400,China)
出处
《家畜生态学报》
北大核心
2023年第12期48-53,共6页
Journal of Domestic Animal Ecology
关键词
种公牛
精液品质
年份
品种
breeding bull
semen quality
year
breed
