Performance and organ morphology of broilers fed microbial or antimicrobial additives and raised in batteries or floor pens

Pedroso, Adriana Ayres; Menten, José Fernando Machado; Racanicci, Aline Mondini Calil; Longo, F. A.; Sorbara, Job; Gaiotto, J. B.

doi:10.1590/s1516-635x2003000200004

Cited by 7 publications

(7 citation statements)

References 5 publications

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“…The dietary supplementation of broilers with B. subtilis as probiotic significantly increased the relative weight of spleen by 3.8% without significantly affecting the relative weights of liver and bursa of Fabricius 43 . In agreement with our study, Pedroso et al reported that the dietary inclusion of Lactobacillus reuteri and L. johnsonii as probiotics significantly increased intestinal weight in 21-day old broilers 44 . Probiotics effect on the weight of visceral organs and intestines of animals is inexplicit, and can also be determined by the nature and amount of microbial strains used as probiotics.…”

Section: Discussionsupporting

confidence: 93%

Novel multi-strain probiotics reduces Pasteurella multocida induced fowl cholera mortality in broilers

Reuben

Sarkar²,

Ibnat³

et al. 2021

Sci Rep

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Pasteurella multocida causes fowl cholera, a highly contagious poultry disease of global concern, causing significant ecological and economic challenges to the poultry industry each year. This study evaluated the effects of novel multi-strain probiotics consisting of Lactobacillus plantarum, L. fermentum, Pediococcus acidilactici, Enterococcus faecium and Saccharomyces cerevisiae on growth performance, intestinal microbiota, haemato-biochemical parameters and anti-inflammatory properties on broilers experimentally challenged with P. multocida. A total of 120 birds were fed with a basal diet supplemented with probiotics (108 CFU/kg) and then orally challenged with 108 CFU/mL of P. multocida. Probiotics supplementation significantly (P < 0.05) improved growth performance and feed efficiency as well as reducing (P < 0.05) the population of intestinal P. multocida, enterobacteria, and mortality. Haemato-biochemical parameters including total cholesterol, white blood cells (WBC), proteins, glucose, packed cell volume (PCV) and lymphocytes improved (P < 0.05) among probiotic fed birds when compared with the controls. Transcriptional profiles of anti-inflammatory genes including hypoxia inducible factor 1 alpha (HIF1A), tumor necrosis factor- (TNF) stimulated gene-6 (TSG-6) and prostaglandin E receptor 2 (PTGER2) in the intestinal mucosa were upregulated (P < 0.05) in probiotics fed birds. The dietary inclusion of the novel multi-strain probiotics improves growth performance, feed efficiency and intestinal health while attenuating inflammatory reaction, clinical signs and mortality associated with P. multocida infection in broilers.

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Section: Discussionsupporting

confidence: 93%

Novel multi-strain probiotics reduces Pasteurella multocida induced fowl cholera mortality in broilers

Reuben

Sarkar²,

Ibnat³

et al. 2021

Sci Rep

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“…Such findings have been reported in the literature. For example, Pedroso et al (2003) added Lactobacillus reuteri and L. johnsonii into drinking water and reported a significant increase in intestinal weight in 21-day-old broilers. The mechanism by which this occurs is not known as the effect of probiotics on organ weights in animals is equivocal.…”

Section: Discussionmentioning

confidence: 99%

Novel probiotics: Their effects on growth performance, gut development, microbial community and activity of broiler chickens

Olnood¹,

et al. 2015

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A total of 294 one-day-old Cobb broiler chickens were used to investigate the effects of four Lactobacillus strains on gut microbial profile and production performance. The six dietary treatments, each with 7 replicates were: 1) basal diet (negative control), 2) one of four strains of Lactobacillus (tentatively identified as Lactobacillus johnsonii, Lactobacillus crispatus, Lactobacillus salivarius and an unidentified Lactobacillus sp.) and 3) basal diet with added zinc-bacitracin (ZnB, 50 mg/kg). Results showed that the addition of probiotic Lactobacillus spp. to the feed did not significantly improve weight gain, feed intake and feed conversion rate (FCR) of broiler chickens raised in cages during the 6-week experimental period, but tended to increase the number of total anaerobic bacteria in the ileum and caeca, and the number of lactic acid bacteria and lactobacilli in the caeca; and to significantly increase the small intestinal weight (jejunum and ileum). Furthermore, all 4 probiotics tended to reduce the number of Enterobacteria in the ileum, compared with the control treatments. The probiotics did not affect the pH and the concentrations of short chain fatty acids (SCFA) and lactic acid in both the ileum and caeca.

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“…Some studies tested more than one type of probiotic, so that some treatments did not meet the inclusion criteria: only spray administration of probiotic (Leandro et al, 2001), and probiotic administered only via drinking water (Pedroso et al, 2003;Pelicano et al, 2004 b;Teixeira et al, 2003).…”

Section: Systematic Reviewmentioning

confidence: 99%

“…A) Lactobacillus reuteri and Lactobacillus jonhsonii in the drinking water at one day of age + Bacillus subtilis in the diet (Loddi, 2003;Pedroso et al, 2003;Sato, 2001 and Saccharomyces cerevisiae in the diet (Cavalcanti, 1995;Henrique, 1998;Teixeira et al, 2003). G) Bacillus toyoi in the diet (Zuanon et al, 1998a,b Hedges, 1982.…”

Section: Systematic Reviewmentioning

confidence: 99%

Probiotics for broiler chickens in Brazil: systematic review and meta-analysis

Filho

Torres

Faria

et al. 2006

Rev. Bras. Cienc. Avic.

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This study evaluated the efficacy of probiotic utilization as growth promoters in broiler chicken feeding using systematic literature review and meta-analysis. Thirty-five studies were recovered by the systematic review, 27 of which met the following criteria to be included in the meta-analysis: (1) Brazilian studies published between 1995 and 2005; (2) probiotics administered in the diet without growth promoter; (3) results included performance data with the respective coefficient of variation. Meta-analysis have shown that the probiotics promoted better weight gain and feed conversion than the negative control (no antimicrobial) in the initial phase (1 to 20-28 days); nevertheless, results were similar in the total period (1 to 35-48 days). Weight gain and feed conversion were similar between probiotics and the positive control (with antimicrobial) both in the initial and in the total periods. Viability in the total period improved with the use of probiotics in comparison to the negative or positive controls. Sensitivity analysis showed that the results of meta-analysis were coherent. The funnel plots and the Egger regression method evidenced that the studies published in Brazil do not present biased results. It is possible to conclude that the probiotics are a technically viable alternative to antimicrobial growth promoters in broiler feeding. Nevertheless, further studies are necessary to identify eventual differences among the probiotics commercially available in Brazil.

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Performance and organ morphology of broilers fed microbial or antimicrobial additives and raised in batteries or floor pens

Cited by 7 publications

References 5 publications

Novel multi-strain probiotics reduces Pasteurella multocida induced fowl cholera mortality in broilers

Novel multi-strain probiotics reduces Pasteurella multocida induced fowl cholera mortality in broilers

Novel probiotics: Their effects on growth performance, gut development, microbial community and activity of broiler chickens

Probiotics for broiler chickens in Brazil: systematic review and meta-analysis

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