畜牧与兽医2025，Vol.57Issue(8)：22-27,6.
补饲瘤胃源活毕赤酵母菌液对奶水牛瘤胃发酵和营养物质降解率的影响
Effects of rumen derived live Pichia kudriavzevii culture on rumen fermentation and degradation rate of feed nutrients in dairy buffaloes
摘要
Abstract
This study aimed to investigate the effects of rumen derived live Pichia kudriavzevii(YPK)culture on rumen fermentation and feed nutrient degradation characteristics in dairy buffalo.Six Murrah buffaloes with permanent rumen fistula were used in this study.The six buffaloes were randomly assigned into two groups;the control group was fed with the basal diet,while the treatment group was fed with the basal diet supplemented with YPK bacterial solution at a dose of 4 × 1011 CFU/d per head.Then,the rumen volatile fatty acids profile in the buffaloes was measured.A nylon bag method was used to evaluate the degradation characteristics of feed dry matter(DM),crude protein(CP),neutral detergent fiber(NDF),and acidic detergent fiber(ADF)in the rumen of the animals at different time points(2,4,8,12,24,48,72 hours post the beginning of the test).The results showed that YPK significantly increased the concentration of acetic acid(P＜0.001),propionic acid(P=0.002),and total volatile fatty acids(P＜0.001)in the rumen of the buffaloes;YPK significantly increased their rumen degradation rates of feed DM(P＜0.001),CP(P=0.044),NDF(P＜0.001),and ADF(P＜0.001).In conclusion,YPK significantly increased the rumen fermentation and the degradation rate of feed nutrients in dairy buffaloes.YPK has the potential to be a func-tional probiotic for ruminants.关键词
尼龙袋法/毕赤酵母/奶水牛/饲料营养物质/降解特性/瘤胃发酵参数Key words
nylon bag method/Pichia kudriavzevii/dairy buffalo/feed nutrient/degradation characteristics/rumen fermentation parame-ters分类
农业科技引用本文复制引用
肖芬,毛家真,向小娥,杨承剑,毛胜勇,金巍..补饲瘤胃源活毕赤酵母菌液对奶水牛瘤胃发酵和营养物质降解率的影响[J].畜牧与兽医,2025,57(8):22-27,6.基金项目
广西科技重大专项(桂科AA22068099) （桂科AA22068099）
