Avaliação do uso de mananoligossacarídeos sobre o desempenho e morfometria intestinal de frangos de corte

Abstract

The objective of this study was to evaluate diets containing a commercial prebiotic, mannanoligosaccharides (MOS) as an additive alternative to growth promoters by studying the growth performance and intestinal morphometry of broilers. The experiment was conducted in the poultry sector of the Federal University of Bahia Recôncavo - UFRB, Cruz das Almas - Ba, using 1248 broiler chicks, male Cobb a day old and reared until 38 days old in design completely randomized design with eight treatments and six repetitions. To submit birds to the health challenge, we adopted reused litter, cleaning of drinkers three times a week and contamination of drinking water twice a week. The parameters weight gain, feed conversion, feed consumption and productive efficiency index were used to evaluate the performance of birds. We also evaluated the villus height and crypt depth two sections of intestine (duodenum and ileum). The addition of MOS studied did not significantly affect (P> 0.05) on the performance and crypt depth in the poultry intestinal sections and promotes positive effect on villus height.