中国荷斯坦犊牛和育成牛生长发育规律的研究  

Study on Growth and Development Pattern of Chinese Holstein Calf and Heifer

作　　者：于志[1] 高艳霞[1,2,3] 曹玉凤[1,2,3] 李秋凤[1,2,3] 李建国[1,2,3] 

机构地区：[1]河北农业大学动物科技学院,河北保定071001 [2]河北省牛羊胚胎工程技术研究中心,河北保定071001 [3]河北农业大学养牛科学研究所,河北保定071001

出　　处：《中国畜牧兽医》2014年第6期121-125,共5页China Animal Husbandry & Veterinary Medicine

基　　金：国家现代农业产业技术体系建设专项资金;农业公益性行业专项(200903006);河北省现代农业产业技术体系奶牛创新团队

摘　　要：通过测定150头育成牛从出生到配种前各月龄牛的体重、体高、体斜长、胸围和管围,掌握其生长发育规律,绘制生长发育曲线。结果表明,育成牛在13月龄时体重、体高、胸围、体斜长和管围分别为366.26kg、125.69cm、168.01cm、139.38cm和17.83cm,均达到了配种要求;在8月龄之前各项体尺增长最快,8月龄之后速度减慢。犊牛和育成牛体重的评估模型为:Y=-284.087+4.747X1+5.664X2-3.209X3-25.352X4或Y=96.475X22X3。The objective of this study was to measure the body weight, height, length, chest and pipe circumference of 150 Chinese Holstein calf and heifers from born to breeding, aiming to revealing the growth and development pattern and drawing the growth curve. The results showed that the body weight,height,length,chest and pipe circumference of heifers at 13-month age respectively were 366.26 kg,125.69 em,168.01 cm,139.38 cm and 17.83 cm,reached the breeding requirements. The fastest growth period of heifers was from birth to 8 month old,the speeding of growth decreased after 8 month old. The estimate of body weight for calf and heifer were： Y = - 284. 087 ＋ 4. 747X1 ＋5. 664X2 - 3. 209X3 - 25. 352X4 and Y= 96.475X2 2 X3.

关 键 词：中国荷斯坦牛 生长发育 体尺 体重 

分 类 号：S823[农业科学—畜牧学]