基于精料和粗料对牦牛瘤胃液发酵饲料参数优化研究  

Optimisation of Yak Rumen Fluid Fermented Feed Parameters Based on Concentrates and Roughage

作　　者：申迪 张曼 廖扬 王书祥 秦燕 刘文辉[1,3] 杨英魁 柴沙驼 SHEN Di;ZHANG Man;LIAO Yang;WANG Shuxiang;QIN Yan;LIU Wenhui;YANG Yingkui;CHAI Shatuo(College of Animal Husbandry and Veterinary Science,Qinghai University,Qinghai Xining 810016,China;Key Laboratory of Animal Nutrition and Feed,Qinghai Xining 810016,China;Key Laboratory of Utilisation of Excellent Pasture Germplasm Resources on the Tibetan Plateau,Qinghai Province,Qinghai Xining 810016,China)

机构地区：[1]青海大学畜牧兽医科学院,青海西宁810016 [2]动物营养与饲料重点实验室,青海西宁810016 [3]青海省青藏高原优良牧草种质资源利用重点实验室,青海西宁810016

出　　处：《饲料工业》2025年第4期83-87,共5页Feed Industry

基　　金：青海省自然科学基金项目[2020-ZJ-974Q]。

摘　　要：为研究牦牛瘤胃液在体外对精料和粗料的发酵参数,试验添加了25%的牦牛瘤胃液,并通过调节温度、水料比、pH和发酵时间来进行正交试验。试验结果表明,牦牛瘤胃液对精饲料的最佳发酵参数为温度39.5℃、pH 7.1、水料比1.4∶1以及发酵时间24 h;对粗饲料的最佳发酵参数为温度39.0℃、pH 6.9、水料比1.0∶1以及发酵时间24 h。这些结果有助于确定牦牛瘤胃液体外发酵的最佳条件,为瘤胃液发酵饲料的研究提供重要参考。In order to study the fermentation parameters of yak rumen fluid on concentrate and roughage in vitro,25% of yak rumen fluid was added in this experiment and the experiment was carried out by adjusting the temperature,water/feed ratio,pH and fermentation time.The experimental results showed that the opti-mal fermentation parameters for concentrate were temperature 39.5℃,pH 7.1,water/feed ratio 1.4∶1,and fermentation time 24 h.The optimal fermentation parameters of yak rumen liquor for roughage under the conditions of this study were temperature 39.0℃,pH 6.9,water/feed ratio 1.0∶1,and fermentation time 24 h.These results help to determine the optimal conditions for extra-liquid fermentation in the rumen of yaks and provide an important reference for future research.

关 键 词：瘤胃液发酵饲料 发酵时间 发酵温度 发酵pH 水料比 发酵参数 

分 类 号：S823.5[农业科学—畜牧学]