Feed supplementation with avian Propionibacterium acidipropionici contributes to mucosa development in early stages of rearing broiler chickens.

Autor: Martínez EA; 1 Universidad Nacional de Tucumán, Ayacucho 471, (T4000ILC) San Miguel de Tucumán, Argentina.; 2 Centro Científico Tecnológico (CCT) Tucumán-CONICET, Crisóstomo Álvarez 722, (T4000CHP) San Miguel de Tucumán, Argentina., Babot JD; 2 Centro Científico Tecnológico (CCT) Tucumán-CONICET, Crisóstomo Álvarez 722, (T4000CHP) San Miguel de Tucumán, Argentina., Lorenzo-Pisarello MJ; 1 Universidad Nacional de Tucumán, Ayacucho 471, (T4000ILC) San Miguel de Tucumán, Argentina., Apella MC; 1 Universidad Nacional de Tucumán, Ayacucho 471, (T4000ILC) San Miguel de Tucumán, Argentina.; 3 Centro de Referencia para Lactobacilos (CERELA)-CCT-CONICET, Chacabuco 145, (T4000ILC) San Miguel de Tucumán, Argentina., Chaia AP; 1 Universidad Nacional de Tucumán, Ayacucho 471, (T4000ILC) San Miguel de Tucumán, Argentina.; 3 Centro de Referencia para Lactobacilos (CERELA)-CCT-CONICET, Chacabuco 145, (T4000ILC) San Miguel de Tucumán, Argentina.
Jazyk: angličtina
Zdroj: Beneficial microbes [Benef Microbes] 2016 Nov 30; Vol. 7 (5), pp. 687-698. Date of Electronic Publication: 2016 Sep 29.
DOI: 10.3920/BM2016.0077
Abstrakt: Different studies in animal rearing claim the probiotic potential of species of the genus Propionibacterium. The effects of strains of Propionibacterium acidipropionici isolated from poultry intestine on microbiota activity and intestinal mucosa development were investigated in the early stage of rearing chicks and the safety of the dose used was investigated. The strains P. acidipropionici LET105 and LET107, administered as monoculture to chicks from the 1 st to 14 th day of life in a daily dose of 106 cfu/ml administered in the drinking water resulted harmless. The animals arrived at the expected weight for age and no differences were observed with respect to the food intake and water consumption related to control without bacteria administration. The analysis of microbiota composition revealed the presence of propionibacteria at the middle and end of the trial only in treated groups. Normal development of lactic acid bacteria and bifidobacteria, and slow colonisation by Bacteroides at the 7 th day of the study was observed in the same groups. Analysis of the organic acids concentrations in the caecal content of birds revealed higher lactic acid and lower butyric acid production. Lower short chain fatty acids total concentration than expected during treatment was related to a better development of the gut mucosa. Increase in length of villus-crypt units, goblet cells counts and neutral mucins production were evidenced. Higher mucus secretion produced by dietary supplementation with propionibacteria could provide increased protection against pathogens.
Databáze: MEDLINE
Externí odkaz: