摘要
[目的]探讨母牛的分娩季节对肉牛生产性能的影响,为全放牧母牛的繁殖提供科学依据。[方法]通过对昆明小哨示范牧场不同季节出生犊牛的生产性能和产犊后母牛的配种受胎率进行分析。[结果]母牛的分娩季节影响犊牛的生长发育、犊牛成活率,以及母牛繁殖力,从而在总体上限制肉牛生产性能的发挥。[结论]在有条件的地区,应尽可能根据当地的自然条件把母牛的分娩季节调整到气候暧和干燥的季节,配种期应调节在牧草生长旺盛的季节,这样既有利于牧场日常管理,又有利于肉牛生产性能的发挥,把牛肉的生产成本降到最低以获取最大的经济效益。
[Objeetive]The purpose was to find out the effects of delivery seasons of beef cows on production performances and to provide seientifie proofs for beef reproduction. [Method]We investigated that the effects of delivery seasons of beef cows on growth and development performances on calves and the coneeption rate on cows in different seasons based on the data from Xiaoshao Farm, Kunming. [Result]The results showed that the seasons of beef cow＇s delivery generally influenced the growth and development performances, reproductive capacity of cows, which baffled to expand the production performances of beef cattle. [Conclusion]So it suggested that the delivery seasons of beef eows should be adjusted to warmer and drier eonditions according to the local natural conditions in different areas. The mating periods should be arranged during the optimal pasture growth periods, which were not only suitable for managing daily farm, but also expanding the produetion performances of beef cattle to minimum the cost of production and to get the maximum economic efficiency.
出处
《中国牛业科学》
2009年第6期14-16,共3页
China Cattle Science
基金
云南省技术创新人才培养基金(2008PY091)资助
关键词
母牛
分娩季节
生产性能
Beef cow
Delivery season
Production performance
