半牧半舍饲养条件下科尔沁牛生长特性和生产性能  

Research of Growth Characteristics and Production Performance of Horqin Cattle Under SemiPasture and SemiRearing Condition

作　　者：王金海[1,2] 王思珍[1] 牛化欣[1] 刘景忠 WANG Jin-hai WANG Si-zhen NIU Hua-xin LIU Jing-zhong(College of Animal Science and Technology, Inner Mongolia University for the Nationalities, Tongliao Inner Mongolia 028000 The Animal Husbandry Bureau in Zhalute County ,Zhalute, Inner Mongolia 029100)

机构地区：[1]内蒙古民族大学动物科学技术学院,内蒙古通辽028000 [2]内蒙古通辽市扎鲁特旗畜牧局,内蒙古通辽扎鲁特旗029100

出　　处：《中国牛业科学》2017年第3期8-11,共4页China Cattle Science

基　　金：内蒙古自治区优质肉牛生产核心技术研究与示范创业人才团队项目

摘　　要：【目的】为研究内蒙古半牧半舍饲养条件下科尔沁牛的生长规律和生产性能。【方法】2014年4月~2015年4月选取内蒙古通辽市扎鲁特旗5处养殖户多头样本,测量和分析初生、6月、12月、18月和24月龄科尔沁牛生长特性。【结果】科尔沁公牛和母牛体重均随月龄的延长呈直线增加,初生和6月龄,科尔沁公牛和母牛的体重没有显著性差异(P>0.05),但12月龄、18月龄和24月龄科尔沁公牛体重均显著高于母牛体重(P<0.05),公牛体重分别比母牛体重高20.9%、36.07%和42.58%。公牛日增重在0.61~0.95kg/cm。18月龄和24月龄科尔沁公牛肉用指数分别为3.82和4.61。【结论】科尔沁牛乳肉兼用牛,在以放牧为主舍饲为辅的条件下,具有较好的生长发育特性和生产性能,适合本地区的养殖,但为提高生产效率,有待进一步加强饲养管理和饲料利用效率。[Objective]The aim of this study was to investigate the growth characteristics and production performance of Horqin cattle under the condition of semi-pastoral and semi-rearing in Inner Mongolia. [Method]From April 2014 to April 2015, Horqin cattle samplesfrom 5 farmers in Zhalute Country,Inner Mongolia werecollected and and analyzed the growth characteristics of the 0,6,12,18 and 24-monthold cattle. [Result]The body weight of Horqin bulls and cows increased linearly with the extension of age, and there was no significant difference of between the newborn and the 6th month,the bull and the cow （P 〉 0.05）. But the weight of the Horqin bull of thel2 months,18 months and 24 months was higher than the weight of Horqin cow （P〈0.05） and the body weight of the bulls was 20.9% ,36.07% and 42.58% higher than that of the cows. The daily gain of bulls was between 0.61 and 0.95 kg/cm. The beef performance indexes of 18and 24-month-old H orqin bulls were 3.82 and 4.61, respectively. [Conelusion]Horqin cattle is a beef and milk dualpurpose breed. It has good growth and development characteristics and production performance under the condition of mainly dominated bygrazing and supplemented by barn feeding. Horqin cattle is suitable for the breeding of the region, however, in order to improve the production efficiency, it is necessary to further strengthen the feeding,management and feed utilization efficiency.

关 键 词：半牧半舍饲养 科尔沁牛 生长特性 肉用指数 

分 类 号：S823[农业科学—畜牧学]