PROBIÓTICOS NA ALIMENTAÇÃO DE FRANGOS DE CORTE NA FASE PRÉ- INICIAL

Abstract

The objective was to evaluate the use of probiotics, on performance, biometry of the gastrointestinal tract and bones (tibia and femur), biochemical profile of blood, liver and pancreas of broilers at seven days of age. A total of 168 one-day-old chicks were used, distributed in 24 cages, reared up to 7 days of age. The design was completely randomized, with 4 treatments and 6 replications containing 7 birds per replicate. The treatments consisted of: Control based on corn and soybean meal; Control + Single strain of probiotic (Bacillus subtilis (LOFU160)); Control + Blend 1 (Enterococcus faecium (LOFU 84, LOFU 124, LOFU 140, LOFU 145, LOFU 146, LOFU 158), Lactobacillus acidophilus (LOFU 63), Lactobacillus delbrueckii (LOFU 65), Lactobacillus plantarum (LOFU 79, LOFU 83, LOFU 147), Lactobacillus reuteri (LOFU 18, LOFU 21, LOFU 22, LOFU 35, LOFU 48), Lactobacillus salivarius (LOFU 44), Pediococcus acidilactici (LOFU 57, LOFU 58, LOFU 82), Bacillus subtilis (LOFU 160)) ; Control + Blend 2 (Undefined culture of microorganisms (CBMAI 1064)). The data were submitted to analysis of variance and the parameters that showed differences by the F test at 5% probability with the tukey test. The single-strain probiotics and Blend 1 had a beneficial effect on the biometry of the gastrointestinal tract (length and weight of the small and large intestines), in addition to not affecting liver weight. There were also changes in the biochemical profile of the blood and in the bone metabolism of the tibia and femur of the broiler chicks, as calcium and phosphorus may have been mobilized to the bones.