畜牧与饲料科学Issue(9)：35-37,40,4.
不同NFC/NDF比日粮对奶山羊瘤胃pH值动态变化的影响
Effects of Dietary Non-fiber Carbohydrate to Neutral Detergent Ratios on Ruminal pH Dynamics in Dairy Goats
摘要
Abstract
Six Guanzhong dairy goats with permanent rumen cannula were used to determine the effects of four different ratios of NFC to NDF in diets on the ruminal pH dynamics.The NFC/NDF were1.02（Ⅰ）,1.24（Ⅱ）,1.63（Ⅲ） and 2.58（Ⅳ）,respectively.In the present study ruminal pH were monitored continuously by continous ruminal pH measuring and recording system.The results showed that①Ruminal pH values were decreased significantly with the increase of NFC/NDF.②With the increase of NFC/NDF,mean duration times for pH lower than 5.2,5.5,5.8 and 6.0 were increased from 0,0,2.42 and 9.40 h to 0.33,7.50,17.06 and 20.53 h,respectively. At the save time,curve areas for pH lower than 5.5,5.8 and 6.0 were increased from 0,0.21 and 1.43 to 1.09,4.84 and 8.59.The rate and degree of pH decline post feeding and the duration of pH nadir were increased with increase of dietary NFC/NDF.关键词
NFC/NDF/瘤胃/pH值/奶山羊Key words
NFC to NDF ratios/rumen/pH/dairy goats分类
农业科技引用本文复制引用
胡红莲,卢德勋,刘大程,石岩,珊丹..不同NFC/NDF比日粮对奶山羊瘤胃pH值动态变化的影响[J].畜牧与饲料科学,2011,(9):35-37,40,4.基金项目
国家自然科学基金项目 （）
内蒙古自然科学基金项目 （）
