期刊
RESEARCH IN VETERINARY SCIENCE
卷 94, 期 1, 页码 62-68出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.rvsc.2012.07.025
关键词
Probiotics; Bacillus subtilis; Lactobacillus salivarius; Mucosal immunity; Interaction; Piglet
资金
- National Science Grant of China [31172302]
Probiotics, including Bacillus spp. and Lactobacillus, are potential replacements for low dose in-feed antibiotics for pig. This study aimed to evaluate the effect of the co-administration of Bacillus subtilis RJGP16 and Lactobacillus salivarius B1 as potential probiotics to stimulate local immune responses. Thirty two newborn piglets were divided into four groups and orally administrated with different combination of probiotics (none; RJGP16; B1; RJGP16 and B1) at the age of 0, 7 and 11 days. We analysed the parameters of the mucosal immunity of piglets a week after weaning. Our results showed that the gene expression of interleukin (IL)-6 in the duodenum and ileum, porcine beta-defensins (pBD)-2 in the duodenum were significantly increased (p < 0.01) with co-administration of the RJGP16 and B1. Also the expression and release of TLR-2 and the number of immunoglobulin (Ig) A producing cells were increased (p < 0.01). The results demonstrate that the co-administration of the two bacteria stimulate a more intense mucosal immunity than the administration of each bacterium alone. (C) 2012 Elsevier Ltd. All rights reserved.
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