...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Professional Animal Scientist >CASE STUDY: Effects of Delaying Implant and Programmed Rate of Gain on Performance and Carcass Characteristics of Yearling Beef Steers
【24h】

CASE STUDY: Effects of Delaying Implant and Programmed Rate of Gain on Performance and Carcass Characteristics of Yearling Beef Steers

机译：案例研究:推迟植入和的影响程序的性能和获得一岁的牛肉引导的尸体特征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ninety-six steers (average BW = 335 +- 36 kg) were allotted in a completely randomized design with a 2 x 2 factorial arrangement of treatments. Factors were 1) implant on d 1 or no implant and 2) ad libitum access to feed on d 1 or programmed-fed fora target BW gain of 1A kg/d during the first 62 d of the feeding period. On d 63, all steers were implanted with Revalor-S~(R) (Hoechst Roussel Vet, Overland Park, KS) and provided ad libitum access to feed until harvest. From d 63 to 116, ADG and gain efficiency (g gain/kg DMI) for steers programmed-fed to gain slowly were greater (P<0.05) than those for steers fed to gain rapidly during the first 62 d of the trial. Restricting feed intake to limit ADG during the first 62 d of the finishing period increased ADG during the remaining portion of the finishing period, Gain efficiency was increased (P=0.097) throughout the entire finishing period by limiting ADG during the first 62 d of the experiment. Steers implanted twice and fed to gain rapidly had theleast fat in the 9th to 11th rib section; steers with a delayed implant and programmed-fed to gain slowly had the most fat in this same section. In this experiment, no significant interactions occurred except for fat weight in the 9th to llth rib sections, although steers implanted on d 1 and fed to gain rapidly tended to have fewer days on feed.
机译：九十六年引导(平均BW = 335 + - 36公斤)规定在一个完全随机设计2 x 2的阶乘安排治疗。因素1)植入1 d或没有植入和2)以d 1或随意访问programmed-fed论坛目标BW增加1公斤/ d在第一次62 d的喂养。63年,所有引导植入Revalor-S ~(右)(赫斯特Roussel兽医,Overland Park, KS)和直到收获随意访问提供饲料。从d 63年到116年,ADG并获得效率(g获得/公斤DMI)引导programmed-fed获得慢慢被比为大(P < 0.05)引导美联储迅速获得第一次62 d的审判。ADG第一62 d的完成时期增加ADG在剩下的部分完成期间,获得效率提高(P = 0.097)在整个加工周期通过限制ADG在第一次的62 d实验。迅速获得最少脂肪9日11日肋骨部分;programmed-fed慢慢获得最胖相同的部分。重要的相互作用发生除了脂肪在9日11肋骨部分,虽然引导植入1 d和美联储迅速增加倾向于少天饲料。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号