Study on Reproductive Performance of Improved Hybrid from Chinese Holstein Cattle  

作　　者：Zhen ZHANG Xinfang ZHAO Xiaoli REN Yakun LI Haohao DENG Lei YAN Yuefei YAN Wenhua YANG Fanjun GENG 

机构地区：[1]Henan Dairy Improvement Center,Zhengzhou 450046,China [2]Luoyang Sheng Sheng Dairy Industry Co.,Ltd.,Mengjin 471125,China [3]Henan Breeding Cattle Genetic Property Determination Center,Zhengzhou 450046,China

出　　处：《Agricultural Biotechnology》2018年第5期108-111,共4页农业生物技术（英文版）

基　　金：Supported by Science and Technology Open Cooperation Project of Henan Province(162106000017);Science and Technology People-benefiting Plan Project of Henan Province(152207110004);Puyang Science and Technology Plan Project(150109)

摘　　要：In order to overcome the problems such as decline in adaptability, low fertility and few utilization years due to continuously increasing coefficient of inbreeding of Chinese Holstein cattle, three dairy-beef dual-purpose cattle varieties （purebred Simmental, Montbeliard and Fleckvieh） were introduced as the male parents to be hybridized with Chinese Holstein cattle, so as to study the improvement effect in the reproduction performance and milk production performance of the hybrid cattle. The results showed that the first-filial generation of Montbeliard had a very significant difference in gestation period from Chinese Holstein cattle （ P 〈0.01）. The parity of Fleckvieh s first-filial generation had a very significant effect on 305 d milk yield （ P 〈0.01）; and for the first-filial generation of Montbeliard, mating times and open days significantly affected 305 d milk yield （ P 〈0.05）, and its total milk yield had a significant difference from Chinese Holstein cattle （ P 〈0.05）. Comprehensively, the reproduction traits of Montbeliard s first-filial generation are better than other two varieties.In order to overcome the problems such as decline in adaptability, low fertility and few utilization years due to continuously increasing coefficient of inbreeding of Chinese Holstein cattle, three dairy-beef dual-purpose cattle varieties （purebred Simmental, Montbeliard and Fleckvieh） were introduced as the male parents to be hybridized with Chinese Holstein cattle, so as to study the improvement effect in the reproduction performance and milk production performance of the hybrid cattle. The results showed that the first-filial generation of Montbeliard had a very significant difference in gestation period from Chinese Holstein cattle （ P 〈0.01）. The parity of Fleckvieh s first-filial generation had a very significant effect on 305 d milk yield （ P 〈0.01）; and for the first-filial generation of Montbeliard, mating times and open days significantly affected 305 d milk yield （ P 〈0.05）, and its total milk yield had a significant difference from Chinese Holstein cattle （ P 〈0.05）. Comprehensively, the reproduction traits of Montbeliard s first-filial generation are better than other two varieties.

关 键 词：Chinese Holstein cattle Simmental cattle Montbeliard cattle Fleckvieh cattle Crossbreeding and improvement Reproductive performance Milk production performance 

分 类 号：S823[农业科学—畜牧学]