文献类型： 外文期刊

作者： Chen, Liang ¹ ; Li, Bin ⁵ ; Ren, Ao ¹ ; Kong, Zhiwei ¹ ; Tan, Zhiliang ¹ ; Alagawany, Mahmoud ⁷ ; Abd El-Hack, Mohamed ¹ ;

作者机构： 1.Chinese Acad Sci, Key Lab Agroecol Proc Subtrop Reg, Minist Agr, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China

2.Chinese Acad Sci, Hunan Res Ctr Livestock & Poultry Sci, Minist Agr, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China

3.Chinese Acad Sci, South Cent Expt Stn Anim Nutr & Feed Sci, Minist Agr, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China

4.Hunan Agr Univ, Coll Anim Sci & Technol, Changsha 410125, Hunan, Peoples R China

5.Tibet Acad Agr & Anim Husb Sci, Inst Anim Sci, Lhasa 850000, Peoples R China

6.CICAPS, Hunan Coinnovat Ctr Anim Prod Safety, Changsha 410125, Hunan, Peoples R China

7.Zagazig Univ, Fac Agr, Dept Poultry, Zagazig 44511, Egypt

8.New Hope Grp, Postdoctoral Sci Res Workstn, Chengdu 610041, Sichuan, Peoples R China

关键词： Yeast culture; in vitro fermentation; Maize stover; Rice straw

期刊名称：KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI （ 影响因子：0.685； 五年影响因子：0.655 ）

ISSN： 1300-6045

年卷期： 2018 年 24 卷 5 期

页码：

收录情况： SCI

摘要： The object of this study was to evaluate the effect of different sources and supplementation levels of yeast culture on in vitro fermentation characteristics of goats. The present study was performed in a 3x4 factorial design to examine the impacts of inclusion of three kinds of yeast culture (Se-enriched, Cr-enriched, Zn-enriched yeast culture) at four dose (0, 0.1%, 0.25%, 0.40% and 0.55%) on the in vitro fermentation characteristics of cereal straw. For maize stover, the results shown that the average values of in vitro gas production, DM and NDF disappearance, pH and the ratio of acetate to propionate were increased (P<0.05), while the concentration of ammonia nitrogen (NH;-N) and butyrate were decreased (P<0.05) by the supplementation of Se-enriched yeast culture (YC-Se) compared with that of Cr-enriched yeast culture (YC-Cr) and Zn-enriched yeast culture (YC-Zn). For rice straw, the in vitro gas production, DM disappearance and pH were increased (P<0.05), and the concentration of ammonia nitrogen was decreased by the supplementation of YC-Se, while the concentration of acetate, propionate, butyrate and total VFA (TVFA) were increased (P<0.05) by the supplementation of YC-Zn. The current results indicate that YC-Se is more preferred as yeast culture supplements, and its optimal dose should be 0.25% substrates for maize stover and 0.10% substrates for rice straw in vitro. The present positive in vitro results should be tested using in vivo experiments in future. The object of this study was to evaluate the effect of different sources and supplementation levels of yeast culture on in vitro fermentation characteristics of goats. The present study was performed in a 3x4 factorial design to examine the impacts of inclusion of three kinds of yeast culture (Se-enriched, Cr-enriched, Zn-enriched yeast culture) at four dose (0, 0.1%, 0.25%, 0.40% and 0.55%) on the in vitro fermentation characteristics of cereal straw. For maize stover, the results shown that the average values of in vitro gas production, DM and NDF disappearance, pH and the ratio of acetate to propionate were increased (P<0.05), while the concentration of ammonia nitrogen (NH3-N) and butyrate were decreased (P<0.05) by the supplementation of Se-enriched yeast culture (YC-Se) compared with that of Cr-enriched yeast culture (YC-Cr) and Zn-enriched yeast culture (YC-Zn). For rice straw, the in vitro gas production, DM disappearance and pH were increased (P<0.05), and the concentration of ammonia nitrogen was decreased by the supplementation of YC-Se, while the concentration of acetate, propionate, butyrate and total VFA (TVFA) were increased (P<0.05) by the supplementation of YC-Zn. The current results indicate that YC-Se is more preferred as yeast culture supplements, and its optimal dose should be 0.25% substrates for maize stover and 0.10% substrates for rice straw in vitro. The present positive in vitro results should be tested using in vivo experiments in future.