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首页> 外文学位 >Effects of mechanical processing and variations in chop length on feedlot performance and digestive function of growing cattle fed corn silage and the effect of grain content on the nutritive value of grain sorghum silage.
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Effects of mechanical processing and variations in chop length on feedlot performance and digestive function of growing cattle fed corn silage and the effect of grain content on the nutritive value of grain sorghum silage.

机译：机械加工和排骨长度的变化对饲喂玉米青贮饲料的生长牛的肥育性能和消化功能的影响以及谷物含量对高粱青贮饲料营养价值的影响。

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摘要

he objective of the first study was to determine the effect of mechanical processing on feedlot performance and digestive function in growing heifers and steers fed a corn silage-based diet. In Trial 1, 60 crossbred heifers were fed three corn silages: (1) processed with an in-line kernel processor at the time of harvest, (2) processed after the storage phase and prior to feeding; and (3) unprocessed. The silage was 90% of the diet (DM basis), and the feeding period was 80 days. Heifers fed the processed silages gained significantly faster and more efficiently than heifers fed the unprocessed silage. In Trial 2, 12 ruminally cannulated steers were fed the diets described above in a completely randomized design metabolism trial. Processing did not affect rumen pH, ruminal digesta weight and composition, or liquid dilution rate, but several components of the ruminal fermentation profile were affected
机译：第一项研究的目的是确定机械加工对饲喂玉米青贮饲料的小母牛和ste牛的饲育性能和消化功能的影响。在试验1中，给60头杂种小母牛饲喂了三种玉米青贮饲料：（1）在收获时用在线果仁处理器加工，（2）在贮藏阶段之后和饲喂之前进行加工； （3）未经处理。青贮饲料为日粮的90％（以DM为基准），喂养期为80天。饲喂加工过的青贮饲料的小母牛比饲喂未加工过的青贮饲料的母牛要快得多，效率更高。在试验2中，在完全随机设计的代谢试验中，给12只反刍动物插管的ers牛喂食了上述日粮。加工过程不会影响瘤胃的pH值，瘤胃消化物的重量和组成或液体稀释率，但是会影响瘤胃发酵过程的几个组成部分

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  • 作者

    Young, Mark Alan.;

  • 作者单位

    Kansas State University.;

  • 授予单位 Kansas State University.;
  • 学科 Agriculture Animal Culture and Nutrition.;Agriculture Agronomy.
  • 学位 Ph.D.
  • 年度 1998
  • 页码 80 p.
  • 总页数 80
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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