响应面法优化复合益生菌发酵仔猪配合饲料工艺的研究OA

This experiment was designed to optimize the fermentation process of compound probiotic solid-state fermentation for piglet compound feed.Taking the crude fiber degradation rate as the main indicator,single-factor experiments and response surface optimization experiments were carried out on the inoculation amount(I),fermentation temperature(t),and fermentation time(T),respectively.The results indicated that the single-factor inoculation amount,fermentation temperature,or fermentation time had a significant impact on the crude fiber degradation rate of the fermented piglet compound feed(P＜0.05),and the optimal ranges were:3％≤I≤9％,26 ℃≤t≤32 ℃,and 24 h≤T≤48 h.The quadratic response surface regression model predicted the optimal fermentation process parameters as:I=5.8％,t=29.62 ℃,T=42.55 h,with the crude fiber degradation rate being 16.30％,and the verification was feasible(P＞0.05).Therefore,the research results could provide experimental and theoretical support for the process of compound bacteria solid-state fermentation of piglet compound feed.