Functional Oligosaccharides Affect Rumen Fermentation and Microbial Growth Efficiency of Jingjiang Cattle

  • GE Tingting ,
  • QU Mingren ,
  • ZHANG Hui ,
  • LI Guanhong ,
  • ZHONG Zhiyong ,
  • LIU Guangbin
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  • Jiangxi Agricultural University, Nanchang 330045, China

Received date: 2011-09-21

  Online published: 2012-02-28

Supported by

现代农业产业技术体系项目(CARS-38);国家自然科学基金(30960254);江西省教育厅项目(GJJ10405,2009GJJ10409)

Abstract

The objective of this study was to determine the effects of functional oligosaccharides on rumen fermentation and microbial growth efficiency of Jingjiang cattle. An in vitro batch culture method was used in the study, and a basal diet with concentrate to forage ratio of 2∶8 was supplemented with mannanoligosaccharides (MOS), fructo-oligosaccharides (FOS) and soybean oligosaccharides (SBOS), respectively. The supplemental levels of each oligosaccharide were 0, 0.80%, 1.00%, and 1.20%, respectively. The results showed that rumen pH was not influenced (P>0.05); however, the total volatile fatty acid and bacterial crude protein concentrations were significantly increased by dietary functional oligosaccharides (P<0.05). The daily microbial nitrogen production and growth efficiency were also increased (P>0.05). The quadratic curve model between microbial growth efficiency and supplemental level of functional oligosaccharide was developed. Calculated by the model, the maximum microbial growth efficiency were 59.72 and 59.50 g/kg when the supplemental levels of MOS and SBOS were 1.17% and 1.03%, respectively. In conclusion, rumen microbial growth in Jianjiang cattle can be improved when supplemental levels of functional oligosaccharides are varied from 1.00% to 1.20%.

Cite this article

GE Tingting , QU Mingren , ZHANG Hui , LI Guanhong , ZHONG Zhiyong , LIU Guangbin . Functional Oligosaccharides Affect Rumen Fermentation and Microbial Growth Efficiency of Jingjiang Cattle[J]. Chinese Journal of Animal Nutrition, 2012 , 24(3) : 557 -562 . DOI: 10.3969/j.issn.1006-267x.2012.03.024

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