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怀孕母牛不同阶段营养调控试验研究报告

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摘要 目的:母牛营养对繁殖性能和养殖效益有重要影响,生长阶段不同,对营养物质的需要量也不同,对整个妊娠期母牛日粮营养水平供给量进行研究,筛选母牛妊娠期适宜日粮组合和饲养管理程序,为科学饲养提供指导。方法:根据实际生产实践,分阶段分别以高营养水平、中营养水平、低营养水平3种营养水平供给量饲养妊娠母牛,并适当调整饲喂量,测定不同营养水平对妊娠母牛增重、繁殖、犊牛初生重的影响,分析饲喂效果。结果表明:妊娠前6个月,高、低营养水平对妊娠母牛增重影响不显著,妊娠6个月到产犊,高营养水平对妊娠母牛增重显著,妊娠3个月到产犊对妊娠母牛增重和犊牛初生重影响显著。产犊前2个月若长期低营养水平,势必造成妊娠母牛营养不足和犊牛初生重低,高营养水平造成母牛肥胖增加难产。结论:适当的营养水平供给不但能提供妊娠期母牛营养所需,而且还可以减少难产、提高犊牛初生重,节约饲料成本。故本试验建议在生产中采用低营养水平较合理。
出处 《今日畜牧兽医》 2021年第2期12-13,共2页
关键词 母牛 营养 饲料
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