全混合颗粒饲料对安格斯幼龄犊牛生长性能的影响

Effects of total mixed pellet feed on growth performance of young Angus calves

[目的]研究不同饲粮对安格斯犊牛开食补料和断奶后一段时间内生长性能的影响。[方法]选用初生安格斯犊牛30头,随机分为3组,饲喂180 d。对照组精料开食补料,断奶后精粗分饲;试验1组精料开食补料,断奶后全混合颗粒饲料饲喂;试验2组全混合颗粒饲料开食补料,断奶后全混合颗粒饲料饲喂。[结果]180 d体重试验1组较对照组高7.78%,但差异不显著;试验2组显著高于试验1组和对照组。断奶后的生长速度(90-180 d日增重),试验1组显著高于对照组;试验2组显著高于试验1组和对照组。[结论]精料型和全混合型颗粒饲料开食补料对犊牛断奶重和哺乳期日增重影响差异不显著,全混合颗粒饲料可显著提高安格斯犊牛断奶后的生长速度,哺乳期开食补料采用全混合颗粒饲料对其日增重的提高更为显著。

[Objectives]To study the effects of different diets on the growth performance of Angus calves after weaning and supplementation.[Methods]Thirty newborn Angus calves were randomly divided into 3 groups and fed for 180 days.In the control group,the concentrate was fed with supplementary feed,and the concentrate and coarse were fed separately after weaning.In group 1,concentrate was fed with supplementary feed and all mixed granular feed was fed after weaning.The two groups were fed with total mixed pellet feed after weaning.[Results]The body weight test in group 1 was 7.78%higher than that in control group on day 180,but the difference was not significant.Experimental group 2 was significantly higher than experimental group 1 and control group.The growth rate(daily gain of 90 to 180 days)after weaning in test group 1 was significantly higher than that in control group.Experimental group 2 was significantly higher than experimental group 1 and control group.[Conclusions]There is no significant difference between concentrate and full mixed pellet diets on weaning weight and daily gain of calves during lactation.The total mixed pellet diet can significantly improve the growth rate of Angus calves after weaning,and the total mixed pellet diet during lactation has a more significant increase in daily gain.