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玉米粒度对滩羊羔羊日粮养分消化的影响

Effects of Corn Particle Size on Dietary Nutrient Digestibility of Tan Sheep Lamb
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摘要 为研究玉米粒度对滩羊羔羊养分消化率的影响,选择体重相近的4月龄滩羊公羔24只,随机分为2组,每组12只。在饲料组成完全相同的基础上,试验组羔羊饲喂整粒玉米,对照组羔羊饲喂粉碎玉米。结果表明,玉米粒度对滩羊羔羊日粮干物质、有机物、粗蛋白和中性洗涤纤维的表观消化率影响差异均不显著(P>0.05)。提示生产实践中滩羊羔羊日粮中的玉米可以不经加工处理,采用整粒形式投喂。 In order to study the effects of corn particle size on nutrient digestibility of Tan Sheep lamb, a total of 24 four-month-old male Tan Sheep lambs with similar weight were chosen and randomly divided into two groups with 12 lambs for each group. On the basis of the same feed composition, the experimental group fed whole corn, and the control group fed crushed corn. The results showed that there were no significant effects of corn particle size on the apparent digestibility of dry material, organic matter, crude protein and neutral detergent fiber of lambs (P>0.05). The results indicate that it is unnecessary to process the corn in lamb diet, and the whole corn can be fed directly.
出处 《畜牧与饲料科学》 2015年第10期43-45,共3页 Animal Husbandry and Feed Science
基金 国家农业科技成果转化资金项目"滩羊标准化生产中试与示范(2012GB2G 300493)" 宁夏科技攻关计划"滩羊标准化生产关键技术研究集成与示范"
关键词 滩羊 整粒玉米 粉碎玉米 表观消化率 Tan Sheep whole corn crushed corn apparent digestibility
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参考文献3

  • 1S.L. Callison,J.L. Firkins,M.L. Eastridge,B.L. Hull.Site of Nutrient Digestion by Dairy Cows Fed Corn of Different Particle Sizes or Steam-Rolled[J]. Journal of Dairy Science . 2001 (6)
  • 2Huntington G B.Starch utilization by ruminants: from basics to the bunk. The Journal of Animal Ecology . 1997
  • 3M. A. Gorocica-Buenfil,S. C. Loer.Effect of cattle age, forage level, and corn processing on diet digestibility and feedlot performance. Journal of Animal Sciences . 2005

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