种公牛的饲养管理

随着人工授精技术和精液冷冻技术的发展,极大地提高了种公牛的利用率,减少了种公牛的饲养数量,但对种公牛的质量提出了更高要求。优秀的种公牛要具备充沛的精力、健壮的体格、优良性状的稳定遗传,并能够产生大量高品质精液。种公牛的生育能力是由遗传因素和环境因素共同决定的,环境因素主要包括营养、健康状况以及饲养管理。饲养管理的科学性和规范性在优秀种公牛培育中发挥着重要作用。本文综述了种公牛的选择方法、国家有关种畜禽饲养的相关条例以及国内种公牛培育现状,从种公牛营养需求、科学管理等方面,分析种公牛饲养管理的重要影响因素,探讨提高种公牛饲养管理水平的具体措施。

Care and Management of Breeding bulls

Cryopreservation of semen and artificial insemination have greatly improved the utilization rate of breeding bulls and reduced the number of breeding bulls, however higher requirements have been put forward for the quality of breeding bulls. Excellent breeding bulls should have abundant energy, strong physique, stable heredity of excellent traits, and be able to produce a large number of high-quality semen. Actual fertility of a herd is a result of the genetic potential and environmental factors including nutrition, health, and management of bulls. The scientificity and standardization of feeding management play an important role in the cultivation of excellent bulls. This paper summarizes the methods for selection of breeding bulls, relevant national laws and regulations of breeding livestock and the current situation of breeding bulls in China, and discusses the key influencing factors of breeding bulls from the aspects of nutrition and feeding management, to explore the specific measures for improving management of breeding bull.