枣渣对肉牛养分表观消化率、血液生化指标和肥育性能的影响
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摘要
为了研究枣渣在肥育肉牛日粮中的添加效果,试验选择体况相近的黑安格斯去势公牛24头,随机分为4组,每组6头,对照组饲喂基础日粮,试验组在基础日粮中添加3%、6%和9%枣渣,试验期为67 d,对肉牛养分表观消化率、血液生化指标和肥育性能进行测定和分析。结果表明:日粮干物质(DM)和无氮浸出物(NFE)表观消化率随枣渣的添加而显著提高(P<0.05),粗蛋白(CP)和粗脂肪(EE)消化率也呈升高的趋势;血糖、总蛋白、尿素氮、三酰甘油、天门冬氨酸氨基转移酶和丙氨酸氨基转移酶等血液生化指标各组间无显著变化(P>0.05),但3%、6%枣渣组超氧化物歧化酶活性较对照组显著升高(P<0.05),总抗氧化能力随枣渣的添加量增加呈上升趋势;与对照组比较,干物质采食量、平均日增重均显著改善(P<0.05),3%和6%枣渣组饲料利用效率较对照组显著提高(P<0.05)。说明枣渣用于肉牛育肥日粮有益于改善其健康状况,提高生产性能,其添加量以占日粮干物质的6%为宜。
引文
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[2] 王会战.红枣加工下脚料与烘干苹果渣饲喂奶牛试验[J].中国奶牛,2006(2):17-18.
[3] 杨增,张英杰,刘月琴,等.枣渣在肉羊育肥中的应用效果研究[C]//2017年全国养羊生产与学术研讨会暨养羊学分会第七次全国会员代表大会论文集.河北:中国畜牧兽医学会养羊学分会,2017.
[4] 陈晓琳,孙娟,李艳玲,等.常见果渣和花生壳在肉羊瘤胃中的降解特点[J].饲料研究,2014(17):58-61.
[5] 张丽英.饲料分析及饲料质量检测技术[M].北京:中国农业大学出版社,2007.
[6] 薄叶峰.枣粉日粮对肉牛瘤胃发酵及生产性能的影响[D].太原:山西农业大学,2015.
[7] HASSAN S A,AL-BAIATI H Y,ALMOSAWY J E.Effect of substitution of barley by whole dates on performance and digestion of awassi lambs[J].KSU J Nat Sci,2013,16(3):12-15.
[8] AL-DABEEB S N.Effect of feeding low quality date palm on growth performance and apparent digestion coefficients in fattening Najdi sheep[J].Small Rumin Res,2005,57(1):37-42.
[9] 郝婕,王艳辉,董金皋.金丝小枣多酚提取物的生理功效研究[J].中国食品学报,2008,8(5):22-27.
[10] 刘秀芳,高文华,赵忠良,等.大枣枸杞提取物抗脂质过氧化作用[J].中华预防医学杂志,1994,28(4):254-255.
[11] 王留,张代,刘秀玲.大枣多糖对断奶仔猪血液生理生化指标及抗氧化能力的影响[J].中国猪业,2013,8(4):60-62.
[12] NOMBEKELA S,MURPHY M,GONYOU H,et al.Dietary preferences in early lactation cows as affected by primary tastes and some common feed flavors[J].J Dairy Sci,1994,77(8):2393-2399.
[13] BRODERICK G A,RADLOFF W J.Effect of molasses supplementation on the production of lactating dairy cows fed diets based on alfalfa and corn silage[J].J Dairy Sci,2004,87(9):2997-3009.
[14] AL-ANI A N,HASSAN S A,AL JASSIM R A M.Dried date pulp in fattening diets for Awassi lambs[J].Small Rumin Res,1991,6(1/2):31-37.
[15] ALHOMIDY S N,BASMAEIL S,AL- OWAIMER A N,et al.Effect of feeding different amounts of discarded dates on growth and efficiency of digestion in sheep[J].Aust J Basic Appl Sci,2011,5(3):636-640.