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首页> 外文学位 >Effect of nutritional regimen and breed on growth performance, carcass characteristics and meat quality in beef cattle.
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Effect of nutritional regimen and breed on growth performance, carcass characteristics and meat quality in beef cattle.

机译：营养方案和品种对肉牛生长性能，car体特性和肉品质的影响。

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摘要

The effects of nutritional regimen, breed and their interaction on growth performance, carcass attributes, and meat quality were evaluated in 72 crossbred Angus (AN) and Charolais (CH) steers fed to a 10 mm backfat endpoint. Cattle were managed on one of three nutritional regimens which involved ad libitum feeding of a 77% high moisture corn diet from the start of the trial or after limit feeding of the 77% HMC diet for 84 days or backgrounding on haylage for 154 days. Backgrounding decreased (P 0.001) DMI and gains in AN vs. CH steers compared with grain feeding. Shear force in the longissimus and semintendinosus muscles was increased with a period of limit feeding in CH vs. AN steers versus continuously fed steers. Limit feeding a high energy diet may be used as an appropriate management regimen for cattle of British background to reduce feed input costs, while ensuring meat quality and tenderness.
机译：在饲喂10毫米后脂肪终点的72头杂交安格斯（AN）和夏洛来牛（CH）ers牛中，评估了营养方案，品种及其相互作用对生长性能，car体属性和肉品质的影响。在三种营养方案之一中对牛进行管理，这三种方案涉及从试验开始时或在限制饲喂77％HMC饲喂84天或限制饲喂154天后随意饲喂77％高水分玉米饮食。与谷物饲喂相比，本底降低了（P <0.001）DMI，而AN和CH转向的增重。在CH饲喂，AN饲喂和连续饲喂的ers牛皮中，随着一定限饲期的增加，最长肌和半semi肌的剪切力增加。限制饲喂高能量饮食可以用作英国背景牛的适当管理方案，以减少饲料投入成本，同时确保肉质和嫩度。

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  • 作者

    McGregor, Elizabeth Margaret.;

  • 作者单位

    University of Guelph (Canada).;

  • 授予单位 University of Guelph (Canada).;
  • 学科 Agriculture Animal Culture and Nutrition.;Agriculture Animal Pathology.
  • 学位 M.Sc.
  • 年度 2009
  • 页码 106 p.
  • 总页数 106
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 饲料;动物医学（兽医学）;
  • 关键词

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