Screening of Lactic Acid Bacteria Isolated from Chicken Ceca for In vitro Growth Inhibition of Salmonella enteritica Serovar Enteritidis

Surachon, Preeyaporn; Sukon, Peerapol; Chaveerach, Prapansak; Waewdee, Panya; Soikum, Chaiyaporn

doi:10.3923/javaa.2011.939.944

Cited by 6 publications

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“…Chlorellin protects against pathogenic organisms without destroying the beneficial microflora of the intestine; this in turn improves the health and productivity of broiler chickens (Jensen et al, 2001). Caecal lactic acid bacteria might be able to reduce the pathogenic micro-organisms such as Salmonella enteritidis (Surachom et al, 2011), thereby improving the health status and productivity of hosts (Tables 5-7). Villus height increased (linear and quadratic, p < 0.05) with inclusion level of CBP in diets.…”

Section: Resultsmentioning

confidence: 99%

Effects of dietary supplementation with a chlorella by‐product on the growth performance, immune response, intestinal microflora and intestinal mucosal morphology in broiler chickens

Kang

Park

Kim

2016

Animal Physiology Nutrition

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This study aimed to determine the effect of different dietary levels of a Chlorella by-product (CBP) on the growth performance, immune response, intestinal microflora and intestinal mucosal morphology of broilers. In total, 480 one-day-old broiler chickens were randomly allotted to four dietary treatments with four replicated pens consisting of 30 chicks. The basal diet was formulated to be adequate in energy and nutrients. Three additional diets were prepared by supplementing 25, 50 or 75 g/kg of CBP to the basal diet. The diets were fed to the broilers ad libitum for 35 days. Result indicated that increasing inclusion level of CBP improved BW gain (linear, p < 0.05). There was no effect of inclusion level of CBP in diets on total cholesterol, triglyceride, aspartate aminotransferase and alanine aminotransferase levels during the 35 days. Plasma IgG, IgM and IgA concentrations increased (linear, p < 0.05) with inclusion level of CBP in diets. Supplementation of CBP in the diets increased (linear, p < 0.05) the concentrations of Lactobacillus in the caecal content and decreased (linear, p < 0.05) the concentrations of Escherichia coli and Salmonella in the caecal content. Villus height increased (linear and quadratic, p < 0.05) with inclusion level of CBP in diets. Crypt depth increased (quadratic, p < 0.05) with inclusion level of CBP, and a decreased villus height: crypt depth ratio (quadratic, p < 0.05) was observed as inclusion level of CBP in diets increased. The results of the current experiment indicate that dietary supplementation of CBP improves growth performance of birds. Dietary CBP has improving Lactobacillus spp. concentrations in the gastrointestinal tract, plasma immunoglobulin concentrations and intestinal mucosal morphology.

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Section: Resultsmentioning

confidence: 99%

Effects of dietary supplementation with a chlorella by‐product on the growth performance, immune response, intestinal microflora and intestinal mucosal morphology in broiler chickens

Kang

Park

Kim

2016

Animal Physiology Nutrition

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“…The beneficial effect of dietary CBT ® on egg production presented in Table 2 might be related to the positive effect of dietary CBT ® on intestinal microflora. Cecal lactic acid bacteria might affect pathogenic microflora such as S. enteritidis ( Surachon et al, 2011 ), thus improve host’s health status and productivity.…”

Section: Resultsmentioning

confidence: 99%

The Dietary Effects of Fermented Chlorella vulgaris (CBT) on Production Performance, Liver Lipids and Intestinal Microflora in Laying Hens

Zheng¹,

Oh²,

Jeon³

et al. 2011

Asian Australas. J. Anim. Sci

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Fermented Chlorella vulgaris CBT® was evaluated for its effects on egg production, egg quality, liver lipids and intestinal microflora in laying hens. One hundred and eight Hy-line Brown layers (n = 108), 80 wk of age, were fed a basal diet supplemented with CBT® at the level of 0, 1,000 or 2,000 mg/kg, respectively for 42 d. Egg production was measured daily and egg quality was measured every two weeks. Five eggs from each replicate were collected randomly to determine egg quality. Egg production increased linearly with increasing levels of CBT® supplementation (p<0.05), although there was no significant effect of treatment on feed intake. Egg yolk color (p<0.001) and Haugh unit (p<0.01) improved linearly with increasing dietary CBT®. Hepatic triacylglycerol level was linearly decreased with increasing dietary CBT® (p<0.05). The supplemental CBT® resulted in linear (p<0.001) and quadratic (p<0.01) response in population of cecal lactic acid bacteria. In conclusion, fermented Chlorella vulgaris supplemented to laying hen diets improved egg production, egg yolk color, Haugh unit and positively affected the contents of hepatic triacylglycerol and the profiles of cecal microflora.

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“…In the group whose log concentrations increased significantly, Bifidobacterium and Lactobacillus , genera predominantly found in the gastrointestinal tracts of animals, including chickens, are beneficial to the host and generally regarded as safe [ 15 ]. Increasing their concentrations would therefore confer health benefits to the host, which has led to extensive investigation of their probiotic potentials in a variety of animal species [ 16 , 17 ]. Twenty-three of the 42 studies used Lactobacillus in DFM supplementation, indicating its popularity for application in broiler chickens.…”

Section: Discussionmentioning

confidence: 99%

Effect of direct-fed microbials on culturable gut microbiotas in broiler chickens: a meta-analysis of controlled trials

Heak

Sukon

Sornplang

2018

Asian-Australas J Anim Sci

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ObjectiveThis meta-analysis was conducted to evaluate the overall effect of direct-fed microbial (DFM) or probiotic supplementation on the log concentrations of culturable gut microbiota in broiler chickens.MethodsRelevant studies were collected from PubMed, SCOPUS, Poultry Science Journal, and Google Scholar. The studies included controlled trials using DFM supplementation in broiler chickens and reporting log concentrations of the culturable gut microbiota. The overall effect of DFM supplementation was determined using standardized mean difference (SMD) with a random-effects model. Subgroups were analyzed to identify pre-specified characteristics possibly associated with the heterogeneity of the results. Risk of bias and publication bias were assessed.ResultsEighteen taxa of the culturable gut microbiota were identified from 42 studies. The overall effect of DFM supplementation on the log concentrations of all 18 taxa did not differ significantly from the controls (SMD = −0.06, 95% confidence interval [−0.16, 0.04], p = 0.228, I2 = 85%, n = 699 comparisons), but the 18 taxa could be further classified into three categories by the direction of the effect size: taxa whose log concentrations did not differ significantly from the controls (category 1), taxa whose log concentrations increased significantly with DFM supplementation (category 2), and taxa whose log concentrations decreased significantly with DFM supplementation (category 3). Category 1 comprised nine taxa, including total bacterial counts. Category 2 comprised four taxa: Bacillus, Bifidobacterium, Clostridium butyricum, and Lactobacillus. Category 3 comprised five taxa: Clostridium perfringens, coliforms, Escherichia coli, Enterococcus, and Salmonella. Some characteristics identified by the subgroup analysis were associated with result heterogeneity. Most studies, however, were present with unclear risk of bias. Publication bias was also identified.ConclusionDFM supplementation increased the concentrations of some beneficial bacteria (e.g. Bifidobacterium and Lactobacillus) and decreased those of some detrimental bacteria (e.g. Clostridium perfringens and Salmonella) in the guts of broiler chickens.

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Screening of Lactic Acid Bacteria Isolated from Chicken Ceca for In vitro Growth Inhibition of Salmonella enteritica Serovar Enteritidis

Cited by 6 publications

References 0 publications

Effects of dietary supplementation with a chlorella by‐product on the growth performance, immune response, intestinal microflora and intestinal mucosal morphology in broiler chickens

Effects of dietary supplementation with a chlorella by‐product on the growth performance, immune response, intestinal microflora and intestinal mucosal morphology in broiler chickens

The Dietary Effects of Fermented Chlorella vulgaris (CBT) on Production Performance, Liver Lipids and Intestinal Microflora in Laying Hens

Effect of direct-fed microbials on culturable gut microbiotas in broiler chickens: a meta-analysis of controlled trials

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