Effects of Sporolactobacillus on Performance, Intestinal Development and Microflora of Broilers

LIU Lei, ZHU Lixian

doi:10.3969/j.issn.1006-267x.2011.12.014

Chinese Journal of Animal Nutrition >

2011 , Vol. 23 >Issue 12: 2136 - 2142

DOI: https://doi.org/10.3969/j.issn.1006-267x.2011.12.014

Molecular Nutrition

Effects of Sporolactobacillus on Performance, Intestinal Development and Microflora of Broilers

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1. College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China;
2. College of Food Science and Technology, Shandong Agricultural University, Tai'an 271018, China

Received date: 2011-07-19

Online published: 2011-12-14

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Abstract

This experiment was conducted to investigate the effects of dietary Sporolactobacillus level on the performance, intestinal development and microflora of broilers. A total of 2 400 one-day-old broiler chickens (Arbor Acres) were randomly allocated to 4 groups with 6 replicates per group and 100 chickens per replicate. The broilers were randomly subjected to one of the following 4 treatments for 42 days: control group (fed a basal diet) and three treatments (fed the basal diet with 200, 100 and 50 mg/kg Sporolactobacillus, respectively). The results showed as follows: 1) adding 200 mg/kg Sporolactobacillus significantly decreased feed/gain of broilers at weeks 1 to 3 (P<0.05), and adding 100 mg/kg Sporolactobacillus significantly decreased feed/gain and mortality of broilers at weeks 1 to 6 (P<0.05). 2) Adding 200 mg/kg Sporolactobacillus significantly increased the weight correction length of duodenum and jejunum of broilers on day 21 (P<0.05). Adding 100 mg/kg Sporolactobacillus significantly increased the duodenal relative weight of broilers on day 42 (P<0.05). 3) Adding 100 mg/kg Sporolactobacillus significantly increased villus length, crypt depth, mucosal thickness and V/C value in jejunum of broilers on day 21 (P<0.05). 4) Adding 200, 100 and 50 mg/kg Sporolactobacillus all decreased significantly the number of E. coli in chyme of jejunum of broilers (P<0.05). In conclusion, adding both of 200 and 100 mg/kg Sporolactobacillus can decrease feed/gain and mortality of broilers, and the effects are better than those of adding 50 mg/kg Sporolactobacillus; adding 100 mg/kg Sporolactobacillus can improve intestinal development and the function of digestion and absorption; all supplemental levels of Sporolactobacillus can inhibit the reproduce of E. coli in jejunum of broilers.

Key words： Sporolactobacillus; broilers; performance; intestinal development; microflora

Cite this article

LIU Lei, ZHU Lixian . Effects of Sporolactobacillus on Performance, Intestinal Development and Microflora of Broilers[J]. Chinese Journal of Animal Nutrition, 2011 , 23(12) : 2136 -2142 . DOI: 10.3969/j.issn.1006-267x.2011.12.014

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