研究简报 Short Communications

不同粗饲料来源饲粮对湖羊生长性能、瘤胃发酵及血清生化指标的影响

  • 吴天佑 ,
  • 赵睿 ,
  • 罗阳 ,
  • 王洪荣
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  • 扬州大学动物科学与技术学院, 扬州 225009

收稿日期: 2015-12-21

  网络出版日期: 2016-06-27

基金资助

公益性行业(农业)科研专项(201303144);苏北科技发展计划-科技富民强县项目(BN2014004)

Effects of Different Dietary Sources of Roughage on Performance, Ruminal Fermentation and Serum Biochemical Parameters of Hu Sheep

  • WU Tianyou ,
  • ZHAO Rui ,
  • LUO Yang ,
  • WANG Hongrong
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  • College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China

Received date: 2015-12-21

  Online published: 2016-06-27

摘要

本试验在相同能量和蛋白质水平下,研究了不同粗饲料来源的饲粮对湖羊生长性能、瘤胃发酵功能及血清生化指标的影响。选用体况良好、体重相近的湖羊18只,随机分为3组,每组6只。在相同能量和蛋白质水平饲粮条件下,分别饲喂以花生藤(PV组)、豆秸(BS组)和甘蔗渣(SM组)作为单一粗饲料配制3种不同粗饲料来源的饲粮。试验期60 d,其中预试期15 d,正试期45 d。结果显示:1)PV组平均日增重显著高于BS组和SM组(P<0.05)。2)SM组湖羊瘤胃液乙酸、丁酸、总挥发性脂肪酸含量及乙酸/丙酸显著或极显著低于其他2组(P<0.05或P<0.01);丙酸含量在9 h显著或极显著高于其他2组(P<0.05或P<0.01),但在24 h组间差异不显著(P>0.05)。3)SM组的血清中尿素氮含量显著高于PV组(P<0.05),肌酐含量显著高于BS组(P<0.05)。结果提示,在相同能量和蛋白质水平饲粮条件下,相比于豆秸和甘蔗渣,以花生藤为粗饲料来源的饲粮能够改善湖羊生长发育及瘤胃发酵功能,提高氮的利用率,从而减少精饲料的补充量。

本文引用格式

吴天佑 , 赵睿 , 罗阳 , 王洪荣 . 不同粗饲料来源饲粮对湖羊生长性能、瘤胃发酵及血清生化指标的影响[J]. 动物营养学报, 2016 , 28(6) : 1907 -1915 . DOI: 10.3969/j.issn.1006-267x.2016.06.034

Abstract

This study was conducted to study the effects of different dietary sources of roughage on performance, ruminal fermentation and serum biochemical parameters of Hu sheep under the same energy and protein conditions. Eighteen healthy Hu sheep with similar body weight were randomly divided into three groups with six sheep per group, and sheep in different groups were fed three diets with peanut vine (PV group), beanstalk (BS group) and sugarcan molasses (SM group) as the only dietary roughage source, respectively, under the same energy and protein levels. The test had a 15-day pre-experiment and a 45-day experiment. The results showed as follows: 1) average daily gain of Hu sheep in PV group was significant higher than that of BS and SM groups (P<0.05). 2) Acetate, butyrate, total volatile fatty acid contents and the ratio of acetate to propionate in rumen fluid of SM group were significantly lower than those of the other groups (P<0.05 or P<0.01); propionate content of SM group was significantly higher than that of PV group at 9 h (P<0.05 or P<0.01), but there was no significant difference among groups at 24 h (P>0.05). 3) Serum urea nitrogen content of SM group was significantly higher than that of PV group (P<0.05), and serum creatinine content was significantly higher than that of BS group (P<0.05). In conclusion, under the same dietary energy and protein levels condition, compared to BS and SM, PV as the only dietary roughage source can improve performance, ruminal fermentation and nitrogen utilization rate, and save the supplementation of concentrate.

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