AUTHOR=Li Hao , Yin Jie , He Xi , Li Zhiqing , Tan Bie , Jiang Qian , Chen Jiashun , Ma Xiaokang 

TITLE=Enzyme-Treated Soybean Meal Replacing Extruded Full-Fat Soybean Affects Nitrogen Digestibility, Cecal Fermentation Characteristics and Bacterial Community of Newly Weaned Piglets

JOURNAL=Frontiers in Veterinary Science

VOLUME=8

YEAR=2021

URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2021.639039

DOI=10.3389/fvets.2021.639039

ISSN=2297-1769

ABSTRACT=<p>The study investigated the impact of soybean protein from different processing on the performance, dietary nitrogen digestibility, cecal fermentation characteristics, and bacterial community in newly weaned piglets. The piglets were allocated to two dietary treatment and fed with the extruded full-fat soybean diet (EFS group) and enzyme-treated soybean meal diet (ESBM group), respectively. The piglets in ESBM group showed greater nitrogen digestibility and feed efficiency, and lower diarrhea rate in comparison to piglets in EFS group (<italic>P</italic> &lt; 0.05). Cecal samples from piglets in ESBM group contained greater concentration of acetate, propionate and total SCFAs (<italic>P</italic> &lt; 0.05), and lower contents of isobutyrate, isovalerate, total BCFAs, NH<sub>3</sub>-N and putrescine (<italic>P</italic> &lt; 0.05) than cecal samples from piglets in the EFS group. The cecal samples from piglets in ESBM group contained greater abundances of g_<italic>Blautia</italic>, g_<italic>Coprococcus_3</italic>, g_<italic>Fusicatenibacter</italic>, and g_<italic>Bifidobacterium</italic> than the cecal sample from piglets in the EFS group, which could promote to protect intestinal health. In summary, enzyme-treated soybean meal may enhance the growth performance of weaned piglets <italic>via</italic> increasing the dietary nitrogen digestibility, preventing protein fermentation in the hindgut, which shed light on the mechanism in regulating gut health of dietary protein.</p>