Efecto de la Enterogermina (Esporas de Bacillus clausii) en el Comportamiento Productivo de Pollos de Engorde

The effect of a commercial probiotic, Enterogermina (Bacillus clausii spores) in the drinking water on the productive performance of broilers was evaluated. A total of 280 male broilers, Cobb line, of one day of age were used for 49 days. The chicks were distributed in four treatments with seven replicates per treatment: T0 = balanced feed (control), T1, T2 and T3 = balanced feed + 0.25, 0.50 and 0.75 ml of enterogermina per liter of water, respectively, in a randomized complete block design. T2 showed a better body weight gain (2973 g) as compared to T0, T1 and T3 (2627, 2687 and 2831 g, respectively) (p<0.05). Feed intake was similar between treatments (from 6102 to 7084 g/bird); however, T2 obtained the best feed conversion (2.02, p<0.05) and higher carcass yield (75.3%) than the other treatments. The economic analysis reported a profitability of 25.84% for T2, compared with 0.19, 8.21 and 15.44% for T0, T1 and T3, respectively. It is concluded that the application of enterogermina in doses of 0.50 ml/l of drinking water improves the productive performance and economic return in broilers.En la presente investigación se evaluó el uso de un probiótico comercial, la Enterogermina (esporas de Bacillus clausii) en el comportamiento productivo de pollos de engorde suministrado en el agua de bebida. Se utilizaron 280 pollos de engorde machos de la línea Cobb de un día de edad y por 49 días. Las aves fueron distribuidas en cuatro tratamientos con siete repeticiones por tratamiento: T0 = balanceado (control), T1, T2 y T3 = balanceado + 0.25, 0.50 y 0.75 ml de enterogermina por litro de agua, respectivamente, en un diseño de bloques completamente al azar. T2 mostró una mejor ganancia de peso (2973 g) con relación a T0, T1 y T3 (2627, 2687 y 2831 g, respectivamente) (p<0.05). El consumo de alimento fue similar entre tratamientos (entre 6102 y 7084 g/ave); no obstante, T2 obtuvo la mejor conversión alimenticia (2.02; p