【摘要】 本试验旨在探究早期断奶对新疆褐牛生长发育及犊牛腹泻的影响,为新疆褐牛科学饲养提供参考。试验选取出生日期、体重相近的新疆褐牛犊牛180头,随机分为两组,每组90头,在舍饲条件下通过特定营养配方方案,分别在4月龄(试验组)与6月龄(对照组)时进行断奶处理,比较试验两组生长发育情况差异并对饲养成本进行核算比较。结果表明,试验组与对照组在体尺、体重与日增重上差异均不显著(P>0.05);试验组比对照组节省饲养成本339.70元,日节省饲养成本1.90元;试验组腹泻率与粪便指数两项指标均优于对照组。本试验方案下新疆褐牛犊牛在4月龄断奶时犊牛生长发育与对照组无明显差异,但早期断奶饲喂成本较低,能有效降低腹泻发生。更多还原

【Abstract】 The aims of this experiment is to investigate the effects of early weaning on the growth and development of Xinjiang brown cattle and the occurrence of diarrhea, and to provide reference for the feeding of Xinjiang brown cattle breeds in Xinjiang. In the experiment, 180 Xinjiang brown calves with similar birth dates and similar body weights were randomly divided into two groups, 90 in each group. The specific nutritional formula was adopted under the conditions of house feeding, respectively at 4 months of age(test group) and June. At the age of the control group, the weaning treatment was carried out, and the differences in growth and development between the two groups were compared and the feeding costs were compared. The results showed that there was no significant difference in body weight, body size and daily weight gain between the experimental group and the control group(P>0.05). The experimental group saved 339.70 Yuan for the feeding cost and 1.90 Yuan for the daily feeding cost. The diarrhea rate of the experimental group was both indicators of fecal index were superior to the control group. There was no significant difference in growth and development between Xinjiang brown calf and control group at weaning age of 4 months, but the early weaning feeding cost was lower, which could effectively reduce diarrhea.更多还原