家畜生态学报2023，Vol.44Issue(12)：30-34,5.DOI:10.3969/j.issn.1673-1182.2023.12.006
复合益生菌发酵玉米-豆粕型日粮对羊体外瘤胃发酵参数的影响
Effect of Fermented Corn-Soybean Mixed Feed by Compound Probiotics on Rumen Fermentation in vitro
摘要
Abstract
The study aimed to detect the effects of fermented corn-soybean mixed feed by compound probiotics on rumen fermentation in vitro,and to provide a basis for the application of compound probiot-ics fermentation feed in production.The experiment was divided into fermented feed group and unferment-ed feed group,and the artificial rumen fermentation gas production,ammoniacal nitrogen(NH3-N),bac-terial protein(MCP),pH and volatile fatty acid(VFA)concentration were measured.The nutritional con-tents of dry matter(DM),crude protein(CP),energy(GE),neutral detergent fiber(NDF)and acid de-tergent fiber(ADF)in the fermentation residue were determined.The results showed that compared with the unfermented feed group,the gas production was significantly reduced(P＜0.01)in the fermented feed group after incubation for 8 h,12 h,24 h and 48 h;the level of DM significantly decreased(P＜0.01),CP content significantly increased by 26.61％(P＜0.01),while ADF and NDF content significantly decreased by 37.20％and 41.86％(P＜0.01),GE significantly decreased(P＜0.05).The content of NH3-N in-creased by 22.49％(P＜0.01)and the content of bacterial protein decreased by 12.23％(P＜0.01).The content of acetic acid and butyric acid decreased by 42.18％(P＜0.05)and 30.77％(P＜0.01)respective-ly,the content of total volatile acid decreased by 28.18％(P＜0.01),the ratio of acetic acid to propionic acid decreased by 52.29％(P＜0.01),and the content of propionic acid significantly increased by 30.17％(P＜0.01).The results showed that probiotic fermented feed can increase the content of propionic acid and total volatile acid,regulate the rumen metabolic parameters,and decrease the B/C,which is beneficial to the formation of propionic acid type fermentation.关键词
益生菌发酵饲料/体外瘤胃发酵/发酵参数Key words
probiotic fermentation feed/rumen fermentation in vitro/fermentation parameters分类
农业科技引用本文复制引用
徐艳辉,王圆圆,郗艳菊,陆安,郭云霞,郝庆红..复合益生菌发酵玉米-豆粕型日粮对羊体外瘤胃发酵参数的影响[J].家畜生态学报,2023,44(12):30-34,5.基金项目
河北省重点研发专项(21322907D （）
21322910D) （）
河北省自然基金项目(C2022204174) （C2022204174）
大学生科技创新能力专项(22E50050D,2022113) （22E50050D,2022113）
国家肉羊产业技术体系和国家绒毛用羊产业技术体系(CARS-39 （）
CARS-39-23) （）
