Effects of Drinking Saccharomycetes Fermented Inoculants on Growth Performance, Digestive Enzyme Activities and Cecal Microbiota Structure of Dwarf Yellow Broilers

LI Lulin, CAO Zhen, ZHONG Shan, LIAO Xindi, WANG Yan, WU Yinbao

doi:10.3969/j.issn.1006-267x.2018.09.050

2018 , Vol. 30 >Issue 9: 3781 - 3790

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.09.050

Molecular Nutrition

Effects of Drinking Saccharomycetes Fermented Inoculants on Growth Performance, Digestive Enzyme Activities and Cecal Microbiota Structure of Dwarf Yellow Broilers

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1. College of Animal Science, South China Agricultural University, Guangzhou 510642, China;
2. Guangdong Wens Foodstuffs Group Co., Ltd., Xinxing 527400, China;
3. Key Laboratory of Tropical Agriculture Environment, South China, Ministry of Agriculture, Guangzhou 510642, China

Received date: 2018-02-26

Online published: 2018-09-20

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Abstract

Using dwarf yellow broilers as research object, this paper was conducted to discuss the effects of drinking two kinds of fermented microorganism inoculants with main active ingredient of Saccharomyces from different days of age on growth performance, digestive enzyme activities and cecal microbiota structure to providing basis for the application of fermented microorganism inoculants in broiler production. A total of 1 680 1-day-old healthy female dwarf yellow broilers were randomly allotted into 6 groups with 4 replicates per group and 70 broilers per replicate. Broilers in antibiotic control group (group A) were fed a basal diet supplemented with 30 mg/kg virginiamycin, and that in blank control group (group B) were fed a basal diet, and the others in 4 experimental groups (groups C, D, E and F) were fed basal diets and began to supplement 3% of one of the two fermented microorganism inoculants in daily drinking water from 14-day-old or 27-day-old. The feeding period lasted for 78 days. The growth performance, digestive enzyme activities in duodenal contents and bacterial diversity in cecal contents and so on were measured at 26, 56 and 78 days of age. The results showed as follows:1) compared with blank control group, the ratio of feed to gain (F/G) of broilers drinking fermented microorganism inoculants 2 from 27 days of age was significantly decreased from 27 to 56 days of age (P<0.05), and F/G of broilers drinking fermented microorganism inoculants 1 and fermented microorganism inoculants 2 from 14 days of age was significantly decreased from 57 to 78 days of age and 14 to 78 days of age (P<0.05). 2) Compared with blank control group, amylase activity in duodenal contents of broilers drinking fermented microorganism inoculants 2 from 27 days of age was significantly increased at 56 days of age (P<0.05), and trypsin activity in duodenal contents of broilers drinking fermented microorganism inoculants 1 from 14 days of age was significantly increased at 26 and 78 days of age (P<0.05). 3) The diversity index of bacteria in cecal contents of broilers drinking fermented microorganism inoculants 2 from 14 days of age and drinking fermented microorganism inoculants 1 from 27 days of age was significantly higher than that in blank control group at 78 days of age (P<0.05). Drinking fermented microorganism inoculants made the bacterial community structure in cecal contents of broilers to be uniform, and the bacterial community structure was more similar with the experiment progresses. In conclusion, drinking fermented microorganism inoculants with main active ingredient of Saccharomyces from 14 days of age can be helpful for changing the composition of cecum microbial, improving the activity of trypsin, then effectively reducing F/G and increasing the breeding efficiency of the dwarf yellow broiler.

Key words： dwarf yellow broiler; fermented microorganism inoculants; Saccharomyces; growth performance; cecal microorganisms

Cite this article

LI Lulin, CAO Zhen, ZHONG Shan, LIAO Xindi, WANG Yan, WU Yinbao . Effects of Drinking Saccharomycetes Fermented Inoculants on Growth Performance, Digestive Enzyme Activities and Cecal Microbiota Structure of Dwarf Yellow Broilers[J]. Chinese Journal of Animal Nutrition, 2018 , 30(9) : 3781 -3790 . DOI: 10.3969/j.issn.1006-267x.2018.09.050

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