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Effects of Rhizoma Atractylodis Oil on Rumen Fermentation and Nutrient Degradability in Vitro in Jinjiang Yellow Cattle

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  • College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China

Received date: 2014-02-19

  Online published: 2014-08-13

Abstract

This study was conducted to determine the effects of Rhizoma Atractylodis oil on rumen ferment parameters and nutrient degradability in vitro in Jingjiang yellow cattle. Three beef cattle were fed under high temperature environment in summer, and their rumen fluid were collected by rumen fistula and then mixed. An in vitro batch culture method was used in the study, and a basal diet with the concentrate to forage ratio of 20:80 was supplemented with Rhizoma Atractylodis oil by 0 (control group), 0.25%, 0.50%, 0.75% and 1.00%, respectively. The results showed as follows: 1) compare with the control group, the total gas production, pH, ammonia nitrogen, volatile fatty acid (VFA), total VFA concentration and acetic acid to propionic acid ratio in all supplemental groups were not significantly influenced (P>0.05), however, the rumen fluid microbial protein (MCP) content was tended towards increase compared with control group. The rumen fluid MCP content in the group supplemented with 0.75% Rhizoma Atractylodis oil was increased by 9.48% (P<0.05) compared with control group. 2) No significant difference was noticed about the degradability of dry matter (DM) and neutral detergent fiber (NDF) among all groups (P>0.05), but the degradability of crude protein (CP) and acid detergent fiber (ADF) in rumen fluid culture substrate supplemented with Rhizoma Atractylodis oil were significantly increased (P<0.05), especially, the degradability of ADF in group supplemented with 0.50% Rhizoma Atractylodis oil was increased by 16.13% (P<0.05), and the degradability of CP was significantly increased by 31.58% in group supplemented with 0.75% Rhizoma Atractylodis oil (P<0.01) compared with control group. In conclusion, the diet supplemented with 0.75% Rhizoma Atractylodis oil can promote the rumen fluid MCP synthesis and increase the degradability of CP in Jinjiang yellow cattle.

Cite this article

XU Zhensong, QU Mingren, SONG Xiaozhen, ZHAO Xianghui, HUANG Tao, CHEN Yumin . Effects of Rhizoma Atractylodis Oil on Rumen Fermentation and Nutrient Degradability in Vitro in Jinjiang Yellow Cattle[J]. Chinese Journal of Animal Nutrition, 2014 , 26(8) : 2373 -2378 . DOI: 10.3969/j.issn.1006-267x.2014.08.044

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