Effect of Bacillus subtilis var. natto Fermented Soybean on Growth Performance, Microbial Activity in the Caeca and Cytokine Gene Expression of Domestic Meat Type Chickens
Effect of Bacillus subtilis var. natto Fermented Soybean on Growth Performance, Microbial Activity in the Caeca and Cytokine Gene Expression of Domestic Meat Type Chickens
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DOI：
10.2141/jpsa.46.116
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发表时间：
2009-04-01
影响因子：
1.5
通讯作者：
Nakamura, Yutaka
中科院分区：
文献类型：
--
作者：
Fujiwara, Ken-ichiro;Yamazaki, Makoto;Nakamura, Yutaka
实验研究了枯草芽孢杆菌变种的作用。纳豆发酵大豆对肉鸡生长性能、盲肠微生物活性和脾脏细胞因子基因表达的影响。从0至80日龄，饲喂添加有0（对照）、1或2%FS的商业饮食80天，并且第四组雏鸡从0至27日龄饲喂对照饮食，然后从28至80日龄饲喂2%FS饮食。与对照组相比，添加FS并没有降低鸡的采食量，并且由于饮食处理，体重增加和饲料效率没有显著差异。FS的补充没有影响油胴体重，胸部和大腿肉的组成，或腹部脂肪沉积。各组盲肠内容物的pH、NH3-N浓度和微生物数量无显著差异。从0 ~ 80日龄，日粮中添加2%FS可显著提高雏鸡体内总乙酸浓度（P < 0.05）。添加FS对肉鸡脾脏IFN-γ、IL-4和IL-13基因表达无明显影响，说明日粮中添加FS对肉鸡生长性能无不良影响。并且如通过VFA浓度的增加所观察到的，对肠微生物活性具有有益作用。
Experiments were conducted to investigate the effect of the Bacillus subtilis var. natto fermented soybean (FS) on growth performance, microbial activity in the caeca and cytokine gene expression in spleen of domestic meat type chickens. Chicks were fed commercial diets supplemented with 0 (control), 1 or 2% FS for 80 days from 0 to 80 days of age, and a fourth group of chicks were fed control diet from 0 to 27 days of age, and then fed a 2% FS diet from 28 to 80 days of age. Supplementation with FS did not decrease feed intake compared to chicks fed the control diet, and there were no significant differences in body weight gain and feed efficiency due to dietary treatment. FS supplementation had no effect oil carcass weight, breast and thigh meat composition, or abdominal fat deposition. There were no significant differences in pH. NH3-N concentration, or number of microorganisms in the cecum content in each group; however. total acetic acid concentration increased (P < 0.05) in chicks fed the 2% FS Supplemented diet from 0 to 80 days of age. Supplementation with FS did not affect IFN-gamma, IL-4 and IL-13 gene expression in spleens.It can be concluded from this study that supplementing FS to meat type chicken diets has no deleterious effect on the growth performance. and has beneficial effects on intestinal microbial activity, as observed by increases in VFA concentration.