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Study on Milking Characteristics of Crossbred between River and Swamp Buffalo
Author(s): ZHU Liu, WANG Peng-wu, WANG Shao-qing, YU Chang-lin, YANG Gong-xiong, LIU Xue-hong
Pages: 32-
36
Year: 2013
Issue:
8
Journal: China Dairy Cattle
Keyword: 水牛; 泌乳期; 泌乳高峰; 泌乳曲线;
Abstract: 本文分析了云南省大理州家畜繁育指导站奶水牛场2000~2011年摩×本F1、摩×本F2和摩×尼×本三元杂水牛(170头)及摩拉水牛(11头)不同胎次的泌乳期和产奶量资料,比较了不同杂交组合及不同胎次泌乳高峰日和最高日产奶量,拟合了第一个泌乳期的二次方程曲线和Wood模型.结果表明,摩×本F1、摩×本F2及摩×尼×本三元杂水牛的各泌乳期总平均泌乳天数分别为378.98±11.78d、297.50 ±25.10d和267.26±18.41d;摩拉水牛第一个泌乳期内泌乳高峰出现在产后30d左右,摩×本Ft、摩×本F2及摩×尼×本三元杂水牛不同胎次的泌乳高峰分别出现在产后15~35d;摩×本F1和摩×本F2的平均日产奶量极显著低于摩拉水牛与摩×尼×本三元杂水牛(P<0.01),摩×本F2的平均日产奶量极显著高于摩×本F1(P<0.01),摩×尼×本三元杂水牛的平均日产奶量与摩拉水牛差异不显著(P>0.05);Wood模型与实际泌乳曲线的拟合度较高.
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