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Effects of distiller's grains on performance and meat quality in steers at 70% inclusion

机译:夹杂物含量为70%时酒糟对公牛性能和肉品质的影响

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摘要

The objective of this study was to examine the effects of 70% (DM) inclusion of dried distillers' grain with solubles (DDGS) on performance and meat quality. Ninety-six Angus steers (276 kg +/- 7.5 kg initial BW) were used in an completely randomized design with incomplete replication. Steers were stratified by BW to pens and pens were randomly assigned to one of 6 treatments: 1) 80% corn; 5% soybean meal; 15% corn silage, fed as a negative control ( CON); 2) 40% DDGS: 45% corn: 15% corn silage, fed as a positive control (PCON); 3) steers received PCON (0-84d) then switched to a diet of 70% DDGS: 15% corn: 15% corn silage until finished (40/70); 4) steers started on 70% DDGS: 15% corn: 15% corn silage (0-84d) then switched to PCON until finished (70/40); 5) CON + soybean meal, isonitrogenous to PCON (N40); 6) CON + corn oil, isocaloric to PCON ( E40). Steers were fed respective treatments until 80% of them reached low choice or higher by visual appraisal, providing their genetics allowed (168 and 213 days). Dry matter intake, DMI, (P ≥ 0.82) was not affected by treatment, isocaloric, or isonitrogenous diets. End weight was greater (P = 0.04) for PCON steers compared to N40 steers. However, no treatment effect (P ≥ 0.15) on G:F. Dietary treatment did not affect HCW, quality grade, %KPH, or liver score ( P ≥ 0.12). Yield grade was not affected (P = 0.12) by treatment but tended to be lower (P = 0.06) for N40 steers compared to PCON steers. However, N40 steers had a larger ( P = 0.04) ribeye area and greater rib fat (P = 0.05) when compared to PCON and ribeye tended (P = 0.06) to be smaller in 70/40 and E40 steers compared to all other treatments. Minotola color, % cook loss, shear force, total SFA, total PUFA, total MUFA or lipogenic activity were not affected (P ≥ 0.08) by treatment. The data of this study suggests that it is possible to feed 70% DDGS in feedlot rations with little to no adverse effects on growth performance or meat quality.
机译:这项研究的目的是研究将干酒糟与可溶物(DDGS)掺入70%(DM)对性能和肉质的影响。九十六只安格斯ste牛(276 kg +/- 7.5 kg初始体重)用于完全随机设计,复制不完全。 B牛通过BW分层成钢笔,然后将钢笔随机分配到6种处理方法之一中:1)80%玉米; 5%豆粕15%玉米青贮饲料,用作阴性对照(CON); 2)40%DDGS:45%玉米:15%玉米青贮饲料,作为阳性对照饲喂(PCON); 3)ers牛皮接受PCON(0-84d),然后改用日粮DDGS为70%,玉米为15%,青贮饲料为15%直至日粮(40/70); 4)在70%DDGS:15%玉米:15%玉米青贮饲料(0-84d)上开始ers牛皮,然后切换到PCON直到完成(70/40); 5)CON +大豆粉,与PCON(N40)等氮6)CON +玉米油,对PCON(E40)等温。对牛进行相应的治疗,直到通过目测鉴定,其中80%达到低选择或更高水平,并提供其遗传学允许(168天和213天)。干物质摄入,DMI(P≥0.82)不受治疗,等热量或等氮饮食的影响。与N40牛相比,PCON牛的最终体重更大(P = 0.04)。但是,对G:F没有治疗作用(P≥0.15)。饮食治疗不影响HCW,质量等级,%KPH或肝功能评分(P≥0.12)。与PCON ers牛相比,N40 ers牛的产量等级不受处理的影响(P = 0.12),但往往更低(P = 0.06)。然而,与PCON相比,N40 ers牛的核眼面积更大(P = 0.04),肋骨脂肪更大(P = 0.05),与其他所有处理相比,在70/40和E40 ers牛中,R40的ers眼趋向(P = 0.06)更小。 Minotola的颜色,蒸煮损失百分比,剪切力,总SFA,总PUFA,总MUFA或生脂活性不受治疗影响(P≥0.08)。这项研究的数据表明,以饲喂日粮饲喂70%DDGS是可能的,而对生长性能或肉质几乎没有不利影响。

著录项

  • 作者

    Reader, Scott W.;

  • 作者单位

    Southern Illinois University at Carbondale.;

  • 授予单位 Southern Illinois University at Carbondale.;
  • 学科 Animal sciences.
  • 学位 M.S.
  • 年度 2010
  • 页码 61 p.
  • 总页数 61
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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