动物营养学报 >

2014 , Vol. 26 >Issue 8: 2373 - 2378

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.08.044

研究简报 Short Communications

苍术精油对锦江黄牛瘤胃体外发酵及养分降解率的影响

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  • 江西农业大学动物科学技术学院, 南昌 330045
徐振松（1988-），女，江西上饶人，硕士研究生，研究方向为动物营养与中药添加剂。E-mail：xuzhensong1112@126.com

收稿日期: 2014-02-19

  网络出版日期: 2014-08-13

基金资助

国家自然科学基金项目（31201823）；现代农业产业技术体系资助项目（nycytx-38）

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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

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摘要

为了研究苍术精油对锦江黄牛瘤胃体外发酵指标及养分降解率的影响，3头供试肉牛在夏季高温条件下饲养，通过瘤胃瘘管取其瘤胃液混合后，采用体外批次培养法，在精粗比为20：80的基础饲粮中添加苍术精油，添加水平分别为0（对照组）、0.25%、0.50%、0.75%和1.00%。结果表明：1）与对照组相比，饲粮中添加苍术精油体外培养24 h后，各添加组瘤胃液总产气量、pH、氨态氮、各个挥发性脂肪酸（VFA）和总VFA浓度及乙酸/丙酸均没有显著变化（P>0.05），各添加组瘤胃液微生物蛋白质（MCP）含量总体呈现增加趋势，其中添加0.75%精油组瘤胃液MCP含量最高，比对照组提高了9.48%（P<0.05）；2）与对照组比较，各添加组瘤胃液中培养底物的干物质（DM）和中性洗涤纤维（NDF）降解率差异均不显著（P>0.05）；而酸性洗涤纤维（ADF）和粗蛋白质（CP）降解率显著上升（P<0.05），其中，0.50%精油添加组ADF降解率比对照组提高了16.13%（P<0.05），0.75%精油添加组的CP降解率比对照组提高了31.58%（P<0.01）。综上，添加0.75%的苍术精油可促进锦江黄牛瘤胃液MCP的合成，提高CP的降解率。

关键词： 苍术精油; 体外培养; 锦江黄牛; 瘤胃发酵; 高温

本文引用格式

徐振松, 瞿明仁, 宋小珍, 赵向辉, 黄涛, 陈玉敏 . 苍术精油对锦江黄牛瘤胃体外发酵及养分降解率的影响[J]. 动物营养学报, 2014 , 26(8) : 2373 -2378 . DOI: 10.3969/j.issn.1006-267x.2014.08.044

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.

Key words： Rhizoma Atractylodis oil; in vitro culture; Jinjiang yellow cattle; rumen fermentation; high temperature

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