Efecto de la enterogermina (Esporas de Bacillus clausii) en comportamiento productivo de pollos de engorde

Abstract

The present research entitled “ EFFECT OF ENTEROGERMIN (spores of Bacillus clausii) IN A PRODUCTIVE BEHAVIOR OF BROILER CHICKENS”, analyzed in 280 Broiler chickens Cobb males of one day of age, evaluating productive indices, yield of the carcass and cost analysis until 49 days of age, chickens were distributed in four treatments: T0; control, T1; commercial food and 0,25 ml/lt of enterogermin in drinking water, T2; commercial food and 0,50 ml/lt of enterogermin in drinking water and T3; commercial food and 0,75 ml/lt d of enterogermin in drinking water, each one with seven repetitions, acompletely randomized design was used with analysis of variance and tukey test (5%). T2 showed better weight gain with a value of 2972,65 g to other treatments such as 2626,90 g; 2787,08 g and 2831,44 for T0, T1 y T3 respectively; also, the food consumption didn’t be affected statistically with values of T0 7083,54 g/chicken; T1 6640,16 g/chicken; T2 6102,34 g/chicken and T3 6228,82 g/chicken, however; in a numerically way T2 had the lowest food consumption and got the best greatest feed conversion with a value of 2, 02. The highest mortality was registered in Control treatment with 17,14 %.T2 had the best European efficiency with 292, as well as the higher percentage of yield of the carcass 75, 25%, follow by T3, T1 and T0 with 73,56 %; 72,54 % y 71,24 % respectively, also; the cost analysis for T2 reported the higher percentage of profitability with 25,84 %, because, the production cost of one kilogram of meat is $ 1,95 ant it has an utility of $ 0,51 per kilogram of meat sold, therefore; It is recommended that use of Enterogermin in drinking water in a dose of 0,50 ml/lt in broiler chickens to improve productive indices as an alternative the use of antibiotics growth promoters. Key words: Broiler chickens, enterogermin, probiotics, productive indices.