摘要
【目的】优良的种公牛对牛群的遗传改良起着极其重要的作用,为提高种公牛精液的利用率、精液产量和质量,对影响种公牛的精液品质的因素进行分析。【方法】对可能影响种公牛精液品质的3个因素—品种、季节、年龄进行最小二乘分析,并进行多重比较。【结果】品种对种公牛精液品质有极显著影响(P<0.01),荷斯坦种公牛和利木赞种公牛精液品质较好,夏洛来种公牛与西门塔尔种公牛之间无显著差异;季节对种公牛精液品质有极显著影响(P<0.01),春季种公牛精液品质较好;年龄对公牛精液品质有极显著影响(P<0.01)。小于3岁的种公牛精液品质不高,3~10岁的种公牛精液品质较好。【结论】为提高种公牛精液品质提供理论依据,并为饲养管理和冻精生产提供依据。
【Objective】An excellent kind of bull plays an extremely important role in genetic improvement of cattle. In order to improve the utilization of bull semen,sperm production and quality,this project aims to analyze the factors influencing the semen quality in bull.【Method】In this paper,the three factors:species,season and age which may affect the semen quality of bull were analyzed by using the least squares analysis and Duncan's multiple comparison.【Result】The results showed that the species had a significant influence on bull semen quality( P < 0. 01);. The semen quality of Holstein bulls and Limousin bull were better,there was no significant difference between Charolais bulls and Simmental bulls; Season had a significant influence on bull semen quality( P < 0. 01),bull semen quality was better in spring; Age had a significant influence on bull semen quality( P < 0. 01),bull semen quality was not high in less than 3 years old,bull at the age of 3 ~ 10 years old semen quality was better. 【Conclusion】The theory basis of how to improve the semen quality of bulls in the future,and to provide basis for the future breeding and production management,and to improve the economic benefit of the field.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2015年第11期2123-2128,共6页
Xinjiang Agricultural Sciences
基金
"十二五"国家科技支撑计划课题(2012BAD12B09)
新疆维吾尔自治区科技计划项目(201230116-7)
现代农业(奶牛)产业技术体系建设专项资金资助(CARS-37)~~
