现代畜牧兽医Issue(1)：37-41,5.DOI:10.20154/j.cnki.issn1672-9692.2025.01.008
暖季补饲代乳粉对犊牦牛生长性能的影响
Effects of supplementary feeding of milk replacer powder on growth performance of calving yaks in warm season
摘要
Abstract
In order to regulate and balance the nutrient supply and improve the growth performance of calving yaks,the growth performance indexes of calving yaks were compared and analyzed under traditional grazing,full lactation and warm season supplemented with milk replacer powder.Fifty-four calves with similar body size and body weight(about 2 months of birth)were randomly divided into three groups with 18 calves(half male and half female)in each group.Group A calves were fed milk replacer,Group B calves were fed traditional grazing mode,and Group C calves were fed exclusively with breast milk.The experiment lasted for 45 days.The results showed as follows:After 15 days of supplementary feeding,the body height of Group A was extremely higher than that of Group C(P<0.01),and the tube circumference was significantly higher than that of Groups B and C(P<0.05).After 30 days of supplementation,body height in Group A was significantly higher than that in Group B(P<0.05),and extremely higher than that in Group C(P<0.01).The tube circumference of Group B was significantly lower than that of the other groups(P<0.05).After 45 days of supplementation,the body height and tube circumference of Groups A and C were higher than those of Group B(P<0.05).On the 15th day,the tube circumference of female calves in Group A was significantly higher than that in Group B(P<0.05).On the 45th day,the chest circumference and tube circumference of female calves in Group C were significantly higher than those in Group B(P<0.05).After 45 days of supplementary feeding,the increases of body weight,body height and body length of male calves in Group C were significantly higher than those in Groups A and B(P<0.05).The increase of chest circumference was significantly higher than that of Group A(P<0.05),and extremely higher than that of Group B(P<0.01).The increases in body weight,body height and chest girth of female calves in Groups A and C were extremely higher than those in Group B(P<0.01).The increase of tube circumference in Group C was significantly higher than that in Group A(P<0.05),and extremely higher than that in Group B(P<0.01).The research shows that the relatively low cost of milk replacer in warm season can effectively solve the adverse effects of artificial milking on calves,save fresh milk to a certain extent,and improve the growth performance of calves.关键词
犊牦牛/代乳粉/体尺/体重/生长性能Key words
Calf yak/Milk replacer/Body size/Weight/Growth performance分类
农业科技引用本文复制引用
安福珍,章宗元,王利,安添午,罗晓林..暖季补饲代乳粉对犊牦牛生长性能的影响[J].现代畜牧兽医,2025,(1):37-41,5.基金项目
科技部国家重点研发计划:牦牛产业关键技术研究与应用示范(2021YFD1600201) （2021YFD1600201）
优质牛育种材料和方法创新及新品种选育(2021YFYZ000) （2021YFYZ000）
西藏自治区"十四五"重大科技专项(XZ202101ZD0002N) （XZ202101ZD0002N）
