Growth performance, gastrointestinal microbial activity, and immunological response of piglets receiving microencapsulated Enterococcus faecalis CG1.0007 and enzyme complex after an oral challenge with Escherichia coli (K88)

文献类型: 外文期刊

第一作者: Chen, H. S.

作者: Chen, H. S.;Feng, Z.;Liu, D.;Chen, H. S.;Velayudhan, D. E.;Nyachoti, C. M.;Li, A.;Yin, Y. L.

作者机构:

关键词: enzyme;Escherichia coli;diarrhea;probiotic;piglets

期刊名称:CANADIAN JOURNAL OF ANIMAL SCIENCE ( 影响因子:1.015; 五年影响因子:1.094 )

ISSN:

年卷期:

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收录情况: SCI

摘要: The aim of this study was to determine effects of dietary microencapsulated Enterococcus faecalis CG1.0007 probiotic and multienzyme complex (MC) in Enterotoxigenic Escherichia coli K88 (ETEC) challenged piglets. Thirty-six, 21-d-old weanling pigs were randomly allotted to four dietary treatments: a wheat-barley based negative control (NC), NC + MC, NC + probiotic, and NC + MC + probiotic. After 7-d acclimatization to treatments, pigs were weighed, blood was sampled, and then the pigs were orally challenged with an ETEC inoculum. After the challenge, blood was sampled at different time points; performance measures and fecal consistency scores were recorded; and on day 14, all pigs were killed to obtain intestinal tissue samples. During prechallenge, pigs receiving enzyme, probiotic, and a combination of both showed a significant improvement in daily gain (P = 0.03) and feed efficiency (P = 0.04) compared with control. During the postchallenge period, a greater (P = 0.05) ileal villus height was observed for diets supplemented with probiotic alone. Overall, pigs fed diets with probiotic alone also showed less incidence of diarrhea (P = 0.04) compared with control. In summary, the results indicate that dietary supplementation with microencapsulated Enterococcus faecalis CG1.0007 in weaned piglets challenged with ETEC was effective in controlling diarrhea.

分类号: Q95

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