Effects of zinc bacitracin, bird age and access to range on bacterial microbiota in the ileum and caeca of broiler chickens

Abstract This study has been carried out to evaluate the use of drinking water-soluble probiotics as an alternative to Zinc bacitracin Antibiotic Growth Promoter (AGP) in an effort to reduce the concentration of ammonia excreta as a result of increased feed digestibility. The probiotic used contains 2.0 × 107 CFU mL−1 Lactobacillus sp, 1.6 × 107 CFU mL−1 Bacillus sp, and 7.4 × 109 CFU mL−1 Streptomyces sp. The excreta sample was obtained from 15 male Lohmann strain broiler chickens aged 35 days from a total population of 300 chickens that had previously been reared since Day Old Chick. The chickens were distributed into three treatments and five replications in a metabolic cage with a size of 50 cm × 30 cm × 56 cm for three days. This study used Completely Randomized Design (CRD) with Analysis of Variance (ANOVA). The addition of probiotic significantly reduced (P <0.01) water content and ammonia concentration of broiler chicken excreta. The addition of drinking water-soluble probiotics significantly increased (P <0.01) the feed intake and feed digestibility of broiler chicken. The use of probiotics was better than Zinc bacitracin in reducing excreta ammonia concentration and feed digestibility.

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Probiotic and synbiotic in broiler diet: performance and Enterobacteriaceae

Arquivo Brasileiro de Medicina Veterinária e Zootecnia ◽

10.1590/1678-4162-12035 ◽

2020 ◽

Vol 72 (6) ◽

pp. 2365-2372

Author(s):

P.R.S.C. Leite ◽

H.B. Oliveira ◽

V.B.L. Souza ◽

F.O. Rocha ◽

T.H. Oliveira

Keyword(s):

Broiler Chickens ◽

Positive Control ◽

Negative Control ◽

Broiler Chicks ◽

Broiler Performance ◽

Randomized Design ◽

Colony Forming Units ◽

Completely Randomized Design ◽

Zinc Bacitracin ◽

Experimental Treatments

ABSTRACT The objective of this study was to evaluate the effects of probiotics and synbiotics on the performance and Enterobacteriaceae count of broiler chickens. A total of 640 one-day-old male broiler chicks were distributed in a completely randomized design with four treatments and eight replicates with 20 birds each. The treatments were: ration with performance enhancer (zinc bacitracin; positive control); ration without performance enhancer and probiotic/synbiotic (negative control); ration with probiotics; and ration with synbiotics. At 35 days, five birds from each treatment were euthanized and intestinal contents were harvested for determining the Enterobacteriaceae count. The performance data and average colony-forming units (CFUs) transformed as log CFU/g were subjected to analysis of variance and Tukey’s test. The effects of probiotics and synbiotics were observed in the initial phase, with supplemented birds exhibiting comparable weight gain to those supplemented with bacitracin. No effect of the treatment on broiler performance was observed after 42 days. The enterobacterial count was comparable among all experimental treatments. Supplementation with probiotics and synbiotics did not compromise the performance of broilers and did not alter the Enterobacteriaceae count.

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Effect of Lactobacillus acidophilus and zinc bacitracin as dietary additives for broiler chickens

British Poultry Science ◽

10.1080/00071669987890 ◽

1999 ◽

Vol 40 (1) ◽

pp. 91-94 ◽

Cited By ~ 20

Author(s):

S. M. ABDULRAHIM

Keyword(s):

Lactobacillus Acidophilus ◽

Broiler Chickens ◽

Zinc Bacitracin

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Response of Broiler Chickens to Addition of Zinc Bacitracin to Diets Containing Salinomycin and Roxarsone

Poultry Science ◽

10.3382/ps.0651278 ◽

1986 ◽

Vol 65 (7) ◽

pp. 1278-1280 ◽

Cited By ~ 10

Author(s):

P.W. WALDROUP ◽

H.M. HELLWIG ◽

Z.B. JOHNSON ◽

R.V. FELL ◽

R.A. PRIMO ◽

...

Keyword(s):

Broiler Chickens ◽

Zinc Bacitracin

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The Effect of Zinc Bacitracin and Roxarsone on Performance of Broiler Chickens When Fed in Combination With Narasin

Poultry Science ◽

10.3382/ps.0690898 ◽

1990 ◽

Vol 69 (6) ◽

pp. 898-901 ◽

Cited By ~ 3

Author(s):

PARK W. WALDROUP ◽

AMY L. IZAT ◽

RANDALL A. PRIMO ◽

PERRY F. TWINING ◽

JOHN A. HEBERT ◽

...

Keyword(s):

Broiler Chickens ◽

Zinc Bacitracin

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Effect of the total fraction of Bacillus subtilis GM5 lipopeptides on the growth parameters and formation of the bacterial microbiota of broiler chickens

E3S Web of Conferences ◽

10.1051/e3sconf/202022202053 ◽

2020 ◽

Vol 222 ◽

pp. 02053

Author(s):

Guzel Lutfullina ◽

Daria Pudova ◽

Natalia Gogoleva ◽

Elena Shagimardanova ◽

Ayslu Mardanova

Keyword(s):

Bacillus Subtilis ◽

Broiler Chickens ◽

Growth Parameters ◽

Feed Additive ◽

Feed Conversion ◽

Bacterial Strains ◽

Gastrointestinal Microbiota ◽

Intestinal Microbes ◽

Bacterial Microbiota ◽

Total Fraction

Intestinal microbes play a key role in the energy metabolism of broiler chickens, participate in the development of the gastrointestinal tract, including the regulation of intestinal epithelial proliferation, vitamin synthesis and ion absorption, fermentation of carbohydrates and proteins, biotransformation of bile acids, protection from pathogens and modulation of the immune system. Metagenomic analysis of the gastrointestinal microbiota allows to find approaches to improve the growth and productivity of chickens by introducing a diet based on beneficial bacterial strains or their secondary metabolites. In this paper, we studied the effect of the total fraction of Bacillus subtilis GM5 lipopeptides on the growth parameters and formation of bacterial communities in the caecum of cross Cobb 500 broiler chickens. It was found that the addition of bacillary lipopeptides to the feed resulted in an increase in chicken weight by 12.7% and a decrease in feed conversion by 6.36% compared to the control (P < 0.05). It was also shown that the introduction of a feed additive in the form of a lipopeptide fraction modulates the structure of the bacterial microbiota of the caecum of chickens. Thus, the proportion of classes Bacteroidia, Negativicutes, Betaproteobacteria, Epsilonproteobacteria, Deltaproteobacteria, Synergistia in the caecal microbiota of chickens of the experimental group increases, and the proportion of Clostridia, Methanobacteria decreases in comparison with the control.

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Influence of Pasture Rearing on the Cecal Bacterial Microbiota in Broiler Chickens

Scientia Agriculturae Bohemica ◽

10.1515/sab-2016-0018 ◽

2016 ◽

Vol 47 (3) ◽

pp. 124-128 ◽

Cited By ~ 1

Author(s):

L. Čermák ◽

E. Skřivanová

Keyword(s):

Lactic Acid ◽

Lactic Acid Bacteria ◽

Stress Reduction ◽

Broiler Chickens ◽

Bacterial Microbiota ◽

Cecal Microbiota

Abstract Differences in quantity of cecal microbiota in broiler chickens from conventional and pasture rearing were investigated by cultivation. Rearing on pasture brings stress reduction and increases comfort and bird welfare, which leads to products with better taste and flavour compared to conventionally produced broiler chickens. A difference in cecal settlement of general anaerobes, coliforms, lactic acid bacteria, and campylobacters and salmonellas in the two different rearing systems was addressed. Whereas numbers of total anaerobes and lactic acid bacteria were not affected, those of coliforms were significantly reduced in pasture rearing. Campylobacters were found only in pasture-reared chickens (in 28% of animals). Salmonellas were not detected in any of the systems.

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