VetSRev
Database of veterinary systematic reviews
Database of veterinary systematic reviews
Brazilian Journal of Poultry Science (2006) 8: 89–98
DOI: 10.1590/S1516-635x2006000200004
This study was conducted to evaluate the efficacy of probiotic utilization as growth promoters in broiler chicken feeding using systematic literature review and meta-analysis. 35 studies were recovered by 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; and (3) results included performance data with the respective coefficient of variation. Meta-analysis revealed 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 to the whole duration of the study (1 to 35-48 days). Weight gain and feed conversion were similar between probiotics fed and the positive control (with antimicrobial) birds in the initial and whole experimental period. Sensitivity analysis showed that the results of meta-analysis were coherent. The funnel plots and the Egger regression method revealed that the studies published in Brazil do not present biased results. It is concluded that the probiotics are technically viable alternative to antimicrobial growth promoters in broiler feeding. Nevertheless, further studies are necessary to identify the differences among the commercially available probiotics in Brazil.
Faria Filho, D. E., Torres, K. A. A., Faria, D. E., Campos, D. M. B., & Rosa, P. S. (2006). Probiotics for broiler chickens in Brazil: systematic review and meta-analysis. Brazilian Journal of Poultry Science, 8(2), 89–98. https://doi.org/10.1590/S1516-635x2006000200004 [Indexed using CAB Thesaurus terms], animals, Chordata, eukaryotes, reviews, vertebrates, meta-analysis, Developing Countries, America, Animal Nutrition (Production Responses) [LL520], Brazil, Latin America, liveweight gain, liveweight gains, South America, Threshold Countries, Animal Nutrition (General) [LL500], diets, feed conversion, Meat Producing Animals [LL120], birds, broiler performance, broilers, chickens, domesticated birds, fowls, Galliformes, Gallus, Gallus gallus, Phasianidae, poultry, Sao Paulo, feed additives, efficacy, probiotics, growth promoters, growth stimulants, Feed Additives [RR130]