现代畜牧兽医Issue(4)：51-56,6.DOI:10.20154/j.cnki.issn1672-9692.2026.04.010
体外法研究恰玛古提取物对绵羊瘤胃发酵和营养物质降解率的影响
In vitro study on the effects of Qamgur extract on rumen fermentation and nutrient degradation rate in sheep
摘要
Abstract
The experiment aimed to investigate the effects of different levels of Qamgur extract(QE)on the characteristics of in vitro rumen fermentation,nutrient degradation rate,and gas production kinetics.A single-factor experimental design was adopted,with one control group(CON group)fed only the basal diet,and four experimental groups fed the basal diet supplemented with 0.5%,1.0%,1.5%,and 2.0%of QE(QE0.5 group,QE1.0 group,QE1.5 group,QE2.0 group),respectively.Each group had three replicates,and each sample was tested three times.The in vitro gas production method was used to cultivate for 48 hours,and the nutrient degradation rate,fermentation parameters,and dynamic gas production volume were determined.The results showed that the dry matter degradation rate(DMD)of the QE1.5 group and QE2.0 group was significantly higher than that of the CON group(P<0.05),and the neutral detergent fiber degradation rate(NDFD)of the QE1.5 group was significantly higher than that of the CON group and QE0.5 group(P<0.05).The acetic acid(AA)concentration of the QE1.5 group was significantly higher than that of the CON group and QE0.5 group(P<0.05),the total volatile fatty acid(TVFA)concentration was significantly higher than that of the CON group,QE0.5 group,and QE1.0 group(P<0.05),the ammonia nitrogen(NH ₃-N)concentration was significantly lower than that of the CON group,QE0.5 group,and QE1.0 group(P<0.05),and the microbial protein(MCP)production was significantly higher than that of the CON group and QE2.0 group(P<0.05).The total gas production of the QE1.5 group and QE2.0 group at 12 hours was significantly higher than that of the CON group(P<0.05).The total gas production of each addition group at 24 and 36 hours was significantly higher than that of the CON group(P<0.05).The total gas production of the QE1.0 group,QE1.5 group,and QE2.0 group at 48 hours was significantly higher than that of the CON group and QE0.5 group(P<0.05).The study demonstrated that in vitro fermentation conditions,adding QE can effectively optimize the rumen fermentation mode,improve the degradation efficiency of fiber substances and nitrogen utilization efficiency,and the effect is best when the addition level is 1.5%.关键词
恰玛古提取物/体外瘤胃发酵/养分降解率/挥发性脂肪酸Key words
Qamgur extract/In vitro rumen fermentation/Nutrient degradation rate/Volatile fatty acids分类
农业科技引用本文复制引用
姜楠,段耀辉,魏晨,石晓雷,柏妍..体外法研究恰玛古提取物对绵羊瘤胃发酵和营养物质降解率的影响[J].现代畜牧兽医,2026,(4):51-56,6.基金项目
山东省中央领导地方科技发展资金项目(YDZX2023012) （YDZX2023012）
青海大学青年科研基金项目(2023QNY3) （2023QNY3）
