《中国畜牧兽医》---唯一指定的官方网站 ›› 2015, Vol. 42 ›› Issue (6): 1443-1448.doi: 10.16431/j.cnki.1671-7236.2015.06.018

• 动物营养与饲料科学 • 上一篇    下一篇

日粮中青贮甘蔗尾叶替代不同比例王草对海南黑山羊生长性能、养分表观消化率及血清生化指标的影响

周雄, 周璐丽, 王定发, 周汉林, 冀凤杰, 李茂   

  1. 中国热带农业科学院热带作物品种资源研究所, 儋州 571737
  • 收稿日期:2014-09-25 出版日期:2015-06-20 发布日期:2015-07-23
  • 通讯作者: 周汉林 E-mail:zhouhanlin8@163.com
  • 作者简介:周 雄(1989-),男,湖北天门人,学士,研究方向:热带动物营养与饲料科学,E-mail:418865944@qq.com
  • 基金资助:

    公益性行业(农业)科研专项经费项目(201203072);海南省应用技术研究与示范推广专项应用研究及产业化项目(ZDXM2014053)

Effect of Silage Sugarcane Leaf Replacing Different Ratio of King Grass on Growth Performance,Nutrient Apparent Digestibility and Serum Biochemical Indices of Hainan Black Goats

ZHOU Xiong, ZHOU Lu-li, WANG Ding-fa, ZHOU Han-lin, JI Feng-jie, LI Mao   

  1. Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China
  • Received:2014-09-25 Online:2015-06-20 Published:2015-07-23

摘要: 本试验旨在研究日粮中青贮甘蔗尾叶替代不同比例王草对海南黑山羊生长性能、养分表观消化率及血清生化指标的影响.选用20只平均体重(6.96±0.49)kg的3月龄海南黑山羊羔羊(公、母各半),随机分为5组,每组4个重复,每个重复1只羔羊.对照组饲喂基础日粮,基础日粮包括精饲料和粗饲料,粗饲料为王草;试验1~4组分别在粗饲料中以青贮甘蔗尾叶替代25%、50%、75%、100%王草.预试期5 d,正试期30 d.结果表明,与对照组相比,试验3组粗饲料干物质采食量和平均干物质日采食量显著升高(P< 0.05),各组间平均日增重、精饲料干物质采食量和料重比均无显著差异(P> 0.05);与对照组相比,试验3组粗灰分、磷表观消化率显著升高(P< 0.05),试验4组粗灰分、中性洗涤纤维、酸性洗涤纤维、钙表观消化率显著升高(P< 0.05),试验3、4组间差异不显著(P> 0.05);各组间黑山羊血清生化指标均无显著差异(P> 0.05).综上所述,粗饲料中青贮甘蔗尾叶替代一定比例王草可在一定程度上改善黑山羊生长性能,提高养分表观消化率,且对其血清生化指标无不利影响,其中粗饲料中用青贮甘蔗尾叶替代75%王草时饲喂效果最佳.

关键词: 海南黑山羊; 青贮甘蔗尾叶; 生长性能; 养分表观消化率; 血清生化指标

Abstract: The aim of this study was to investigate the effect of silage sugarcane leaf replacing different ratio of King grass on growth performance,nutrient apparent digestibility and serum biochemical indices of Hainan Black goats.A total of 20 3-month-old Hainan Black goats with an average weight of (6.96±0.49) kg were selected (half male and hale female) and randomly divided into 5 groups with 4 replicates per group and 1 goat per replicate.The goats in the control group were fed the basal diet including concentrate and roughage,roughage was King grass.The goats in the groups 1 to 4 were fed with the equal concentrate,roughage (fresh King grass) was replaced with 25%,50%,75% and 100% silage sugarcane leaf,respectively.The pre-test period lasted for 5 days and the trial period lasted for 30 days.The results showed that compared with control group,the average feed intake of crude feed and average feed intake of total dry matter in group 3 were significantly increased (P< 0.05),there were no significant differences in the average daily gains,average feed intake of concentrate and F/G among all groups (P> 0.05).Compared with control group,the apparent digestibility of Ash and P in group 3 were significantly increased (P< 0.05),the apparent digestibility of Ash,NDF,ADF and Ca in group 4 were significantly increased (P< 0.05).No significant difference was showed between groups 3 and 4 (P> 0.05).There were no significant differences in serum biochemical indices among all groups (P> 0.05).In conclusion,silage sugarcane leaf replaced certain percentage of King grass in roughage could improve the growth performance and nutrient apparent digestibility to some extent,and had no bad effect on the serum biochemical indices of goats,the optimal proportion of silage sugarcane leaf in roughage was 75%.

Key words: Hainan Black goats; silage sugarcane leaf; growth performance; nutrient apparent digestibility; serum biochemical indices

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