当前位置:主页 > 医学论文 > 畜牧兽医论文 >

早期断奶不同哺育方案对2~6月龄犊牛生长发育与DMI的影响

发布时间:2018-06-15 19:54

  本文选题:中国荷斯坦犊牛 + 哺育方案 ; 参考:《饲料工业》2017年09期


【摘要】:为研究中国荷斯坦犊牛早期断奶不同哺育方案对断奶后2~6月龄生长发育与DMI的影响,选择品种来源一致、初生~2月龄(61日龄)阶段采用代乳料-犊牛料不同过渡时间哺育方案、实测平均体重(81.96±9.06)kg的健康中国荷斯坦公犊36头,按体重相近的原则随机分9组,以前期哺育方案、能量饲料构成,以及甘露寡糖、微生态制剂不同添加水平为试验因子,采用L9(34)正交试验设计,探索犊牛早期断奶代乳期代乳料-犊牛料不同过渡时间哺育方案对2~6月龄生长发育及DM采食能力的影响。结果显示,试验犊牛2~6月龄的生长强度依次为体重胸围≈体斜长管围体高,以体重为最大,其次为胸围和体斜长;体重估测回归方程为:体重(kg)=胸围2(m)×体斜长(m)×84.06+13.48。对ADG的调控效果,2~4月龄以0.08%甘露寡糖最佳,"7+1"过渡与之相近,比设定水平可提高ADG 10.95%(P0.05)以上;4~6月龄以"7+1"过渡为优,0.08%甘露寡糖与之相近,比设定水平可提高ADG 11.12%(P0.05)以上。对DMI的调控效果,2~4、4~6月龄均以"7+1"过渡最优,比设定水平相对提高DMI 10.00%以上;0.08%甘露寡糖与之相似。以能量饲料构成的调控效果相对为小。结果表明,中国荷斯坦犊牛早期断奶代乳期采用7周代乳料+1周犊牛料过渡的前期哺育方案,断奶后犊牛料添加0.08%甘露寡糖、0.10%复合微生态制剂,犊牛料能量饲料构成采用普通玉米可显著提高ADG和增强青粗饲料采食能力。
[Abstract]:In order to study the effects of different feeding schemes on the growth and development of Chinese Holstein calves at the age of 2 to 6 months after weaning, the varieties were selected from the same source, and the different transitional feeding schemes were used in the stage of milk substitute and calves feeding at the age of 2 months or 61 days. 36 healthy Chinese Holstein bulls with an average body weight of 81.96 卤9.06)kg were randomly divided into 9 groups according to the principle of similar body weight. The experimental factors were pre-feeding plan, energy feed composition, mannose oligosaccharide and different levels of microecological agents. By using L9 / 34) orthogonal design, this paper explores the effects of different transitional feeding schemes on the growth and development of 2-6 months old and the feeding capacity of DM in the early weaning stage of calves. The results showed that the growth intensity of the test calves at the age of 2 ~ 6 months was in turn the body height of body weight chest 鈮,

本文编号:2023378

资料下载
论文发表

本文链接:https://www.wllwen.com/yixuelunwen/dongwuyixue/2023378.html


Copyright(c)文论论文网All Rights Reserved | 网站地图 |

版权申明:资料由用户0d042***提供,本站仅收录摘要或目录,作者需要删除请E-mail邮箱bigeng88@qq.com