诺丽果原粉对绒山羊体外瘤胃发酵功能的影响

本试验利用体外批次培养法,通过测定培养各时间点的瘤胃发酵参数并结合多项组合效应值(MFAEI),研究向底物中添加不同剂量的诺丽果原粉对绒山羊体外瘤胃发酵功能的影响,为绒山羊生产中新型替抗产品的开发及诺丽果资源的合理利用提供理论支撑.试验以2周岁内蒙古阿尔巴斯白绒山羊为瘤胃液供体动物,采用完全随机区组试验设计,分别向发酵...

Effects of Noni Fruit Raw Powder on in Vitro Rumen Fermentation Function of Cashmere Goats

The objective of this study was to evaluate the effect of different levels of noni fruit raw powder(Morinda citrigolia L.)on in vitro rumen fermentation function of cashmere goats through in vitro batch culture method and by determining the parameters of rumen fermentation in different culture time combined with multiple forages associative effect indicator(MFAEI).The results of this study could provide theoretical support for the development of new alternative antibiotic products in the production of cashmere goats and the rational utilization of noni fruit resources.The 2-year-old Inner Mongolia Albas white cashmere goats was used as rumen fluid donor animals.Five doses of noni fruit raw powder(0,1.0%,2.0%,3.5%and 5.0%)was added in the substrate cultured for 3,6,9,12 and 24 h with randomized complete block design.The results showed that different addition doses of noni fruit raw powder significantly decreased the pH,ammonia nitrogen(NH 3-N)concentration,protozoa number and acetate acid/propionic acid of rumen fermentation in vitro(P<0.05),and significantly increased the bacterial protein(BCP)concentration,total volatile fatty acid(TVFA)concentration and MFAEI(P<0.05),and the addition dose of 3.5%could better promote rumen fermentation function.It is concluded that the addition of noni fruit raw powder can promote the in vitro rumen fermentation of cashmere goats,decrease the protozoa number,and the above effects are better when the addition dose is 3.5%.