摘要
２—６月龄、６—１２月龄、１２—２５月龄和２岁以上云南黄牛的日干物质采食量分别为４．０６、４．５９、５．６９和６．１１ｋｇ，而杂交牛分别为４．５７、５．８９、６．９０和７．０４ｋｇ，平均比云南黄牛高１．０ｋｇ，提高了１９．３２％；云南黄牛的日增重分别为２９９、３８４、３９９和５７３ｇ，而杂交牛分别为５１６、５４６、５５８和７７１ｇ，平均比云南黄牛高１８５ｇ，提高了４６．６３％。杂交牛１ｋｇ增重的饲料消耗平均为１０．２８ｋｇ，平均比云南黄牛低１８．４９％。
The daily dry matter intake(DMI) of Yunnan Yellow Cattle of 2-6 months,6-12months,12-25 months and alove 2-Year old were 4.06,4.59 and 6.11 kg while that of the crosses were 4.57,5.09,6.90 and 7.40 an increase of 19.32%.The average daily gain of Yunnan cattle were 299,384,399,and 575 g,while that of the crosses were 516,546,558and 771 g with an increase of 46.63% 185g.The average feed consumption of the crosses of all ages was 10.28kg,lower than that of Yunnan cattle by 18.49%.
出处
《黄牛杂志》
1999年第1期20-23,共4页
Journal of Yellow Cattle Science
基金
云南科委攻关项目
关键词
云南
黄牛
杂交改良
日增重
采食量
Yannan yellow cattle, crossing, average daily gain, dry matter intake.
