Effects of Different Levels of Pogostemon cablin Essential Oil on in Vitro Rumen Fermentation Indices and Nutrient Degradability of Jinjiang Yellow Cattle

XU Zhensong; QU Mingren; SONG Xiaozhen; YI Zhonghua; HUANG Tao; CAO Hanyan

doi:10.3969/j.issn.1006-267x.2013.11.031

2013 , Vol. 25 >Issue 11: 2748 - 2754

DOI: https://doi.org/10.3969/j.issn.1006-267x.2013.11.031

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Effects of Different Levels of Pogostemon cablin Essential Oil on in Vitro Rumen Fermentation Indices and Nutrient Degradability of Jinjiang Yellow Cattle

XU Zhensong ,
QU Mingren ,
SONG Xiaozhen ,
YI Zhonghua ,
HUANG Tao ,
CAO Hanyan

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

Received date: 2013-05-06

Online published: 2013-10-27

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Abstract

The objective of this study was to determine the effects of Pogostemon cablin essential oil on in vitro rumen fermentation indices and nutrient degradability of Jingjiang cattle. An in vitro batch culture method was used in the study, and a basal diet with concentrate to forage ratio of 20:80 was supplemented with Pogostemon cablin essential oil by 0 (control group), 0.50%, 1.00%, 1.50% and 2.00%, respectively. The results showed as follows: 1) compared with control group, rumen fluid pH was not influenced by dietary supplementation of Pogostemon cablin essential oil (P>0.05), however, the concentration of ammonia nitrogen (NH₃-N) was declined, the total gas production, concentrations of acetic acid and microbial protein (MCP), and the acetic acid/propionic acid were increased. The MCP concentration in 1.00% group was increased by 47.73% (P<0.01). 2) Compared with control group, no significant difference was noticed about the degradability of dry matter (DM) and neutral detergent fiber (NDF) in experimental groups (P>0.05), but the degradability of crude protein (CP) and acid detergent fiber (ADF) in rumen fluid were increased, especially in 1.50% group. These results indicate that supplementation of 1.00% Pogostemon cablin essential oil can improve rumen fermentation, increase MCP concentration and optimize fermentation modes; but supplementation of 1.50% Pogostemon cablin essential oil can increase the degradability of ADF and CP in rumen of Jinjiang yellow cattle.

Key words： Pogostemon cablin essential oil; in vitro culture; Jinjiang yellow cattle; rumen fermentation

Cite this article

XU Zhensong , QU Mingren , SONG Xiaozhen , YI Zhonghua , HUANG Tao , CAO Hanyan . Effects of Different Levels of Pogostemon cablin Essential Oil on in Vitro Rumen Fermentation Indices and Nutrient Degradability of Jinjiang Yellow Cattle[J]. Chinese Journal of Animal Nutrition, 2013 , 25(11) : 2748 -2754 . DOI: 10.3969/j.issn.1006-267x.2013.11.031

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