›› 2015, Vol. 42 ›› Issue (5): 1173-1179.doi: 10.16431/j.cnki.1671-7236.2015.05.021

• 动物营养与饲料科学 • 上一篇    下一篇

去势对17~21月龄西门塔尔牛生长性能的影响

郭同军1,2, 臧长江1, 王连群3, 何宗霖4, 桑断疾2, 邵伟1, 余雄1   

  1. 1. 新疆农业大学动物科学学院, 新疆肉乳用草食动物营养实验室, 乌鲁木齐 830052;
    2. 新疆畜牧科学院饲料研究所, 乌鲁木齐 830000;
    3. 塔里木大学动物科学学院, 阿拉尔 843300;
    4. 新疆阿克苏市地区疾控中心, 阿克苏 843000
  • 修回日期:2015-04-10 出版日期:2015-05-20 发布日期:2015-06-02
  • 通讯作者: 余雄 E-mail:yuxiong8763601@126.com
  • 作者简介:郭同军(1981-),男,甘肃静宁人,博士生,助理研究员,从事反刍动物营养与瘤胃微生物调控研究,E-mail:guotaoxj@126.com
  • 基金资助:
    国家"十二五"科技支撑项目《新疆肉牛安全高效饲养关键技术研究与示范》(2011BAD47B02);新疆肉乳用草食动物营养实验室开放课题资助

The Influence of Castration on Growth Performance of Simmental Cattle Aged from 17 to 21 Months

GUO Tong-jun1,2, ZANG Chang-jiang1, WANG Lian-qun3, HE Zong-lin4, SANG Duan-ji2, SHAO Wei1, YU Xiong1   

  1. 1. Xinjiang Key Laboratory of Herbivore Nutrition for Meat & Milk Production, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Institute of Feed Research, Xinjiang Academy of Animal Science, Urumqi 830000, China;
    3. College of Animal Sciences, Tarim University, Alar 843300, China;
    4. Aksu Center for Disease Control and Prevention, Aksu 843000, China
  • Revised:2015-04-10 Online:2015-05-20 Published:2015-06-02

摘要: 本试验旨在研究去势对西门塔尔牛日增重及体尺的影响。选取50头健康的、16月龄的西门塔尔公牛,经药物驱虫后,依据体重进行单因素配对试验设计。结果表明,17~21月龄的体重和全期平均日增重去势组均比未去势组低,差异不显著(P>0.05);17~21月龄,去势组与未去势组间的体高、体斜长、胸围和腰角宽的长度及其全期月增加数差异均不显著(P>0.05);去势后第1个月(17月龄),去势组的体高、腰角宽和坐骨端宽的月增加数均极显著低于未去势组(P<0.01);17~19月龄去势组的坐骨端宽比未去势组少(P<0.05);全期平均腹围月增加数,去势组极显著高于未去势组(P<0.01)。结果说明,去势西门塔尔牛的全期平均日增重低于未去势西门塔尔牛;去势西门塔尔牛的生长曲线为指数曲线,未去势西门塔尔牛的生长曲线为S型;去势会短期抑制体高、腰角宽、坐骨端宽的月增长;去势能提高去势西门塔尔牛腹围的增长;西门塔尔牛在1.5岁时的体尺接近成年体尺。

关键词: 去势; 西门塔尔牛; 体重; 体尺

Abstract: The objective of the present study was to investigate the influence of castration on daily gain and body size of Simmental cattle.50 healthy Simmental cattle (16 month) were used in a paired design of single factor by body weight.The results showed that 17 to 21 months of age, body weight and the average daily gain of castrated groups were lower than uncastrated group, respectively, there were no significant difference (P>0.05).17 to 21 months of age, body height, body length, chest circumference and hip width's length and month growth of the castrated group and uncastrated group, were all no significant difference (P>0.05).The first months after castration (17 month of age), body height, hip width and ischial-end width's month growth of castrated group were extremely significantly less than uncastrated group (P<0.01).17 to 19 months of age, ischial-end width of castrated group was significantly less than uncastrated group (P<0.05).The whole period of average month increase of abdominal perimeter, castrated group was more than in uncastrated group (P<0.01).The results suggested that the whole period of average daily gain of castrated Simmental cattle was less than uncastrated.The growth curve of castrated Simmental exponential was exponential curve, and uncastrated Simmental was "S".Inhibated the growth of body height, hip width and ischial-end width shortly after castration.The castrated would improve Simmental abdominal perimeter growth.Simmental body size at the age of 1.5 was close to the adult body size.

Key words: castration; Simmental cattle; body weight; body size

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