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
作者： Chen, H. S. 1 ; Velayudhan, D. E. 2 ; Li, A. 3 ; Feng, Z. 1 ; Liu, D. 1 ; Yin, Y. L. 4 ; Nyachoti, C. M. 2 ;
作者机构： 1.Heilongjiang Acad Agr Sci, Inst Anim Husb, 368 Xuefu Rd, Harbin, Peoples R China
2.Univ Manitoba, Dept Anim Sci, Winnipeg, MB R3T 2N2, Canada
3.Acad State Adm Grain, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Subtrop Agr, Changsha, Hunan, Peoples R China
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：
页码：
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.
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