Effects of Fermented Feed without Antibiotic on Growth Performance, Intestinal Flora and Nutrient Apparent Digestibility of Growing-Finishing Pigs

ZHOU Yinghua, HU Xinxu, BIAN Qiao, LIU Huizhi, WANG Shengping, GAO Shufeng, ZHOU Xiaoling, ZHANG Deyuan, GUO Zhaohui

doi:10.3969/j.issn.1006-267x.2015.03.026

2015 , Vol. 27 >Issue 3: 870 - 877

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.03.026

Short Communications

Effects of Fermented Feed without Antibiotic on Growth Performance, Intestinal Flora and Nutrient Apparent Digestibility of Growing-Finishing Pigs

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1. Hunan Institute of Microbiology, Changsha 410009, China;
2. Hunan Engineering Laboratory of Microecology Preparation, Changsha 410009, China;
3. Hunan Biological and Electromechanical Polytechnic, Changsha 410127, China;
4. Hunan Research Center of Agricultural Microorganism Engineering Technology, Changsha 410009, China

Received date: 2014-10-21

Online published: 2015-03-18

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Abstract

This experiment was conducted to study the effects of fermented feed without antibiotic on growth performance, intestinal flora and nutrient apparent digestibility of growing-finishing pigs. Sixty weaner piglets with similar body weight of 18 kg were selected and randomly allotted into 2 groups with 3 replicates per group and 10 pigs per replicate. Pigs in the control group were fed the basal diet with antibiotics (contained flavomycoin 5 mg/kg), and the others in the experimental groups were fed the experimental diet which contained 80% basal diet and 20% fermented feed without antibiotic. The experiment lasted for 154 days. The results showed as follows: 1) the final weight, average daily gain and average daily feed intake in experimental group were significantly higher than those in control group (P<0.05), but the ratio of feed to gain was significantly lower than that in control group (P<0.05). 2) The logarithmic value of Lactobacillus number at mid-period and late-period in experimental group was significantly higher than that in control group (P<0.05), but the logarithmic values of Escherichia coli and Salmonella number at mid-period and late-period in experimental group were significantly lower than that in control group (P<0.05). 3)In the duodenum, the logarithmic values of Lactobacillus and Escherichia coli number of chyme in experimental group were significantly higher than that in control group (P<0.05). 4) In the duodenum, the logarithmic value of Lactobacillus number per gram and per square centimeter of mucosa in experimental group was significantly higher than that in control group (P<0.05), the logarithmic value of Escherichia coli per gram of mucosa in experimental group was significantly higher than that in control group (P<0.05). In the jejunum, the logarithmic value of Lactobacillus number per gram and per square centimeter of mucosa in experimental group was significantly higher than that in control group (P<0.05). 5) The nutrient apparent digestibility of crude protein and crude fiber in experimental group was significantly higher than that in control group (P<0.05). In conclusion, the fermented feed without antibiotic can improve the growth performance, regulate the balance of intestinal flora and enhance digestive ability of growing-finishing pigs.

Key words： fermented feed without antibiotic; growing-finishing pigs; growth performance; intestinal flora; digestive ability

Cite this article

ZHOU Yinghua, HU Xinxu, BIAN Qiao, LIU Huizhi, WANG Shengping, GAO Shufeng, ZHOU Xiaoling, ZHANG Deyuan, GUO Zhaohui . Effects of Fermented Feed without Antibiotic on Growth Performance, Intestinal Flora and Nutrient Apparent Digestibility of Growing-Finishing Pigs[J]. Chinese Journal of Animal Nutrition, 2015 , 27(3) : 870 -877 . DOI: 10.3969/j.issn.1006-267x.2015.03.026

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