新疆农业科学2011,Vol.48Issue(1):148-152,5.
影响荷斯坦奶牛305d产奶量的因素分析
Analysis of Factors Influencing 305-days Milk Yield of Holstein Dairy Cow
摘要
Abstract
[ Objective] In order to investigate factors influencinf; 305 - days milk yield of Holstein cow. [ Method]The effects of SA58 . 1 CLM on 305 - days milk yield were analyzed. [ Result]Effect of different years on 305 - days milk yield was highly significant ( P < 0.01) ; Effect of calving season on 305 - days milk yield was highly significant ( P < 0.01) , 305 - days milk yield was the highest in winter, the lowest in summer; Effect of different parities on 305 - days milk yield was highly significant ( P < 0.01) , the 305 - days milk yield increased by the parity increased, decreased after the fifth parity; Effect of different first calving month age on 305 - days milk yield was highly significant ( P < 0.01) , the 305 - days milk yield was the highest when first calving age during 24 -26 months. [ Conclusion] Year, calving season, parity and first calving month age were the main factors influencing 305 - days milk yield .关键词
荷斯坦奶牛/305 d产奶量/年度/产犊季节/胎次/初产月龄分类
农业科技引用本文复制引用
叶东东,张孔杰,热西提·阿不都热合曼,黄锡霞,张再国,邓江玲,张桂芬..影响荷斯坦奶牛305d产奶量的因素分析[J].新疆农业科学,2011,48(1):148-152,5.基金项目
中国博士后基金项目 ()
农业部公益性行业(农业)科研专项(nyhyzx07-036-10) (农业)
"十一五"新疆维吾尔自治区重大专项(200731134) (200731134)
"十一五"国家科技支撑计划项目(2006BAD04A11-06) (2006BAD04A11-06)