EFECTO PROBIÓTICO DE BIOADITIVO OBTENIDO A PARTIR DE RESIDUOS AGROINDUSTRIALES SOBRE EL COMPORTAMIENTO BIOPRODUCTIVO Y CAMBIOS HISTOLÓGICOS DE POLLITOS

The objective of the study was to evaluate the different doses of bioadditive obtained from agroindustrial residues, on bioproductive behavior and histological changes of chickens (1- 21 days of age). A total of 400 COBB 500 hybrid chickens were used, distributed in four groups of 100 chicks. The doses evaluated were: T1, control; T2, 0.25; T3, 0.35 and T4, 0.50 mL of bioadditive, respectively. The bioadditive is obtained from a mixture of vinegar must and cane molasses with prior treatment, incubated at 37 ° C for 36 hours. Through a completely randomized design, weight gain (GP), feed conversion (CA), occurrence of diarrhea, mortality and histological changes of the chicken intestine with 21 days of age were evaluated. For the histological study, 10 house chickens were sacrificed. The GP in chicks of group T3 and T4 (50 and 80 g) were higher (P <0.0015) compared to the others. As for CA, it was superior in T3 (P <.0001) compared to other treatments. The occurrence of diarrhea and mortality was lower (P <0.05) in all the groups that received treatments, of these the best was in T3; In this same group there was no mortality from 1 to 21 days of age. The size and weight of the intestine was higher (164 cm and 43 g) in T3 (P <0.0001) compared to the other groups under study. The animals that consumed diets containing 0.35 mL of bioadditive (T3), the size of the duodenum, jejunum and ilium was higher (P <0.05). In conclusion, the inclusion of bioadditive with probiotic action obtained from agro-industrial waste improves weight gain, reduction of diarrheal disorders, mortality and intestinal health of the chick (1- 21 days of age) in the critical period of the animal.