膨化秸秆微生物发酵饲料对杜寒杂交肉羊瘤胃发酵的影响

doi:10.12160/j.issn.1672-5190.2021.02.006

畜牧与饲料科学 ›› 2021, Vol. 42 ›› Issue (2): 32-36.doi: 10.12160/j.issn.1672-5190.2021.02.006

膨化秸秆微生物发酵饲料对杜寒杂交肉羊瘤胃发酵的影响

王晓飞¹, 乌日勒格¹, 田丰¹, 薛树媛¹, 王利¹, 李九月¹, 张海鹰¹, 李明²

1.内蒙古自治区农牧业科学院,内蒙古呼和浩特 010031;
2.辽宁祥和农牧实业有限公司,辽宁阜新 123000

收稿日期:2020-09-07 出版日期:2021-03-30 发布日期:2021-04-16
通讯作者: 薛树媛（1972—）,女,研究员,博士（后）,主要研究方向为反刍动物营养与饲料资源开发。
作者简介:王晓飞（1995—）,男,硕士,主要研究方向为反刍动物营养与饲料科学。
基金资助:
国家玉米产业技术体系兴安盟综合试验站项目（CARS-02-47）; 国家重点研发计划项目“北方牧区绵羊高效安全养殖技术应用与示范”（2018YFD052101）

Effect of Extruded Straw Microbial Fermented Feed on Ruminal Fermentation of Dorper × Thin-tailed Han Crossbred Sheep

WANG Xiao-fei¹, Wurilege¹, TIAN Feng¹, XUE Shu-yuan¹, WANG Li¹, LI Jiu-yue¹, ZHANG Hai-ying¹, LI Ming²

1. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China;
2. Liaoning Xianghe Agricultural and Animal Husbandry Industry Co.,Ltd.,Fuxin 123000,China

Received:2020-09-07 Online:2021-03-30 Published:2021-04-16

摘要/Abstract

摘要： [目的] 以粗饲料作为唯一变量,研究膨化秸秆微生物发酵饲料对杜寒杂交肉羊瘤胃发酵的影响。[方法] 选择81只3月龄、体重为（23±1.0）kg的杜寒杂交羔羊,随机分为对照组（70%精料+30%干秸秆）、试验Ⅰ组（70%精料+30%膨化秸秆微生物发酵饲料）和试验Ⅱ组（70%精料+30%膨化秸秆微生物发酵饲料,再添加占日粮总蛋白浓度10%的膨化缓释尿素,NPN≥100%）,每组3个重复,每个重复9只羔羊。试验期共75 d,预饲期15 d,正饲期60 d。[结果] 试验Ⅱ组的NH₃-N和BCP的浓度与试验Ⅰ组和对照组相比显著（P<0.05）提高,试验Ⅰ组和对照组差异不显著（P>0.05）。组间VFA的各项指标差异不显著（P>0.05）。[结论] 膨化秸秆微生物发酵饲料+NPN对瘤胃发酵起到一定的促进作用。

关键词: 膨化秸秆微生物发酵饲料, 杜寒杂交肉羊, 氨态氮, 菌体蛋白, 挥发性脂肪酸

Abstract: [Objective] To assess the effect of extruded straw microbial fermented feed on ruminal fermentation of Dorper × Thin-tailed Han crossbred sheep using roughage as single factor variable. [Method] A total of 81 3-month-old Dorper × Thin-tailed Han crossbred lambs weighed （23±1.0） kg were selected, and were randomly divided into control group （70% concentrate + 30% dry straw）, experimental group Ⅰ （70% concentrate + 30% extruded straw microbial fermented feed） and experimental group Ⅱ （70% concentrate + 30% extruded straw microbial fermented feed, and then adding extruded sustained release urea accounting for 10% of dietary total protein concentration, NPN≥100%). There were 3 replicates for each group and 9 crossbred lambs for each replicate. The experimental period lasted for 75 days, including 15 days of pre-feeding and 60 days of formal feeding. [Result] The concentrations of ammoniacal nitrogen （NH₃-N） and bacterial protein （BCP） in experimental group Ⅱ were significantly （P<0.05） higher than those in experimental group Ⅰ and control group, while there was no significant （P>0.05） difference between experimental group Ⅰ and control group. No significant （P>0.05） inter-group differences in volatile fatty acid （VFA） associated indicators were observed in paired comparisons. [Conclusion] The extruded straw microbial fermented feed + NPN have a promoting effect on ruminal fermentation.

Key words: extruded straw microbial fermented feed, Dorper × Thin-tailed Han crossbred sheep;, ammoniacal nitrogen, bacterial protein, volatile fatty acid

中图分类号:

S826.926.1

王晓飞, 乌日勒格, 田丰, 薛树媛, 王利, 李九月, 张海鹰, 李明. 膨化秸秆微生物发酵饲料对杜寒杂交肉羊瘤胃发酵的影响[J]. 畜牧与饲料科学, 2021, 42(2): 32-36.

WANG Xiao-fei, Wurilege, TIAN Feng, XUE Shu-yuan, WANG Li, LI Jiu-yue, ZHANG Hai-ying, LI Ming. Effect of Extruded Straw Microbial Fermented Feed on Ruminal Fermentation of Dorper × Thin-tailed Han Crossbred Sheep[J]. Animal Husbandry and Feed Science, 2021, 42(2): 32-36.

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膨化秸秆微生物发酵饲料对杜寒杂交肉羊瘤胃发酵的影响

Effect of Extruded Straw Microbial Fermented Feed on Ruminal Fermentation of Dorper × Thin-tailed Han Crossbred Sheep

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