Enviado a publicar: Probiotic lactobacilli as supplementation feed to Salmonella prophylaxis in chicks

GUSILS CARLOS; GONZÁLEZ SILVIA

AVIAN PATHOLOGY

TAYLOR & FRANCIS LTD

Lugar: Londres; Año: 2017

0307-9457

Trabajo enviado a publicar, en espera e resultados de la revisiónProcedures currently used to rear chicks, where these animals are in close contact with adult chicken feces, are an important factor in these young animals susceptibility to infections by pathogenic bacteria, for example Salmonella. To overcome these difficulties, chicks diets can been supplemented with natural compounds and/ or probiotic bacteria. Several methods such as oral inoculation (resuspension in the drinking water or inclusion in the feed) or spraying have been developed for administering viable lactobacilli to these animals. The three strains used in this work were isolated from healthy chickens to day-of-hatch broiler chicks (ISA breed line) and identified as Lactobacillus animalis CRL1014, L. fermentum CRL1015 and L. cellobiosus CRL1016. We conclude that the probiotic formula, administered during the first 12 days after hatching, had preventive effects on host-specific (S. Pullorum and S. Gallinarum) and non-specific (S. Enteritidis and S. Typhimurium) Salmonella colonization. It should be noted that the daily administration as probiotic + food mixture was the preferred method to promote body weight increase (11%) with a reduced feed conversion rate, plus the additional advantage of easy application.