Effects of Lactobacillus and Saccharomycetes Compound Preparation on Growth Performance, Slaughter Performance and Intestinal Health of Broilers

ZHANG Caifeng, WANG Xiaocui, ZHANG Haijun, QI Guanghai, WU Shugeng, WANG Jing, SHI Zhaoguo, WANG Hui

doi:10.3969/j.issn.1006-267x.2017.04.021

2017 , Vol. 29 >Issue 4: 1248 - 1256

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.04.021

Molecular Nutrition

Effects of Lactobacillus and Saccharomycetes Compound Preparation on Growth Performance, Slaughter Performance and Intestinal Health of Broilers

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1. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
2. Key Laboratory for Feed Biotechnology of Ministry of Agriculture, National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
3. Xiamen Honghegu Biotechnology Co. Ltd., Xiamen 361000, China

Received date: 2016-10-31

Online published: 2017-04-14

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Abstract

This study was carried out to investigate the Lactobacillus and Saccharomycetes compound preparation (LS) and its combination with virginiamycin (VM) in diets on growth performance, slaughter performance and intestinal health of Arbor Acres (AA) broilers. A total of 400 one-day-old AA male broilers were randomly allotted into 4 groups with 5 replicates each and 20 broilers in each replicate. Chickens in the control group were fed a basal diet, and the others in experimental groups were fed basal diets supplemented with 30 mg/kg VM (VM group), 15 mg/kg VM+1 000 mg/kg LS (VM+LS group) and 1 000 mg/kg LS (LS group), respectively. The whole experiment period was 42 days. The results showed as follows:1) body weight of broilers at 42 days of age in VM, VM+LS and LS groups was significantly higher than that in the control group (P<0.05). The ratio of feed to gain and average daily gain of broilers in 22 to 42 days of age and 1 to 42 days of age in VM+LS and LS groups were better than those in the control group (P<0.05). 2) Breast muscle yield and eviscerated yield of broilers at 42 days of age in VM+LS group were significantly increased compared with those in the control group (P<0.05). 3) Compared with the control group, jejunum mucosal morphology of broilers at 21 days of age in LS group was significantly improved (P<0.05), and villus height and the ratio of villus height to crypt depth in duodenum of broilers at 21 days of age in the same group were significantly increased (P<0.05). Meanwhile, villus height and the ratio of villus height to crypt depth in duodenum and jejunum of broilers at 42 days of age in VM+LS and LS group were significantly increased compared with the control group (P<0.05). 4) The amount of Escherichia coli and the ratio of Escherichia coli to Lactobacillus in caecum of broilers at 42 days of age in VM+LS and LS groups were lower than those in the control group (P<0.05). In conclusion, LS alone or in combination with VM can improve intestinal health and promote growth performance of broilers.

Key words： probiotics; virginiamycin; broilers; growth performance; intestinal health

Cite this article

ZHANG Caifeng, WANG Xiaocui, ZHANG Haijun, QI Guanghai, WU Shugeng, WANG Jing, SHI Zhaoguo, WANG Hui . Effects of Lactobacillus and Saccharomycetes Compound Preparation on Growth Performance, Slaughter Performance and Intestinal Health of Broilers[J]. Chinese Journal of Animal Nutrition, 2017 , 29(4) : 1248 -1256 . DOI: 10.3969/j.issn.1006-267x.2017.04.021

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