Efecto de probioticos sobre el rendimiento productivo de pollitas criollas de la linea araucana.

Abstract

The objetive was to evaluate the productive performance of Araucanian Creole pullets from 12 to 24 weeks of age by the effect of different strains of comercial probiotics PC1 and PC2 (400 g/Tn) on a base diet (Balanced), where the chemical composition of the experimental diets was determined, and the benefit/cost of each treatment was also analyzed; An experimental methodology was carried out under a completely randomized design, using two treatments and a control treatment with five replicates each, each replicate consisting of 25 Araucanian pullets for a total of 375 birds for 120 days, the research was carried out in the Bayushig parish, in the community of Colaytus, located in the Penipe canton inthe province of Chimborazo. No statistical differences were recorded, however, there was a similarity in the numerical means on productive performance, being better the T1(PC1+DB) with a final weight of 1533 g, weight gain of 869,20 g, feed conversión of 7,74, laying percentage of 67,97%, and energy consumption of 0,22 Mcal/day. Meanwhile, dietary dry matter intake of 80,43 g/day, protein intake of 12,82 g/day was remarkable at T0 (DB). From these preliminary results it is concluded that the net profitability index reports better results in T2 with 1,10 USD. It is concluded that the use of commercial probiotic T1 (PC1+DB) in the diet improves the productive performance and intestinal health of the birds. It is recommended to backyard poultry producers the implementation of probiotics at early ages in the feed to establish a beneficial intestinal microbiota, which will favor the optimization of the feed.