“Evaluación de la inclusión de dos fuentes de fosfato dicálcico en dietas de pollos de engorde en la Ciudad de Santo Domingo, Ecuador”

The following investigation had the objective of evaluating the inclusion of two sources of dicalcium phosphate, through the implementation of different levels of calcium and phosphorus in broilers’ diets with the purpose of evaluate the zootechnical parameters, taking as evaluation criteria: body weight, weight gain, food consumption, feed conversion, accumulated mortality, and the percentage in the broilers’ bone ash at 14 days of age. The broilers were fed ad libitum for 34 days. 2816 mixed male and female chickens were used from the Ross 308 breed; they were distributed in experimental units according to the Randomized Complete Block Design (RCBD) in 4 treatments in which each had 16 repetitions. The Tukey’s range test was used at 5% to determine the differences between the treatments. The four treatments were the following: two control with an input of total Ca (%) and P available (%) at 100% of inclusion in all broilers’ diets, while the other two alternative treatments with total Ca and P available at: 91% Ca/80% P in diet 1; 87% Ca/91%P in diet 2; 111% Ca/103% P in diet 3, and 107% Ca/99% P in diet 4. The study shows significant statistical differences in several parameters of zootechnics like body weight, weight gain, and the total feed intake at the ages of 7 to 28 days. Adjusting diets can improve the broiler's yield during the mentioned growing period. Although several significant differences were found in the accumulated feed conversion at the ages of 21 to 28 days, it couldn’t be concluded with precision how the productive broilers’ yield could be affected. However, adjusting the diet could improve the broilers’ yield. The two levels of inclusion of Ca and P did not affect the mortality of the broilers. Regarding treatment, A: Control expressed a major percentage of bone ash which significantly improved the bone quality in the broilers.

The following investigation had the objective of evaluating the inclusion of two sources of dicalcium phosphate, through the implementation of different levels of calcium and phosphorus in broilers’ diets with the purpose of evaluate the zootechnical parameters, taking as evaluation criteria: body weight, weight gain, food consumption, feed conversion, accumulated mortality, and the percentage in the broilers’ bone ash at 14 days of age. The broilers were fed ad libitum for 34 days. 2816 mixed male and female chickens were used from the Ross 308 breed; they were distributed in experimental units according to the Randomized Complete Block Design (RCBD) in 4 treatments in which each had 16 repetitions. The Tukey’s range test was used at 5% to determine the differences between the treatments. The four treatments were the following: two control with an input of total Ca (%) and P available (%) at 100% of inclusion in all broilers’ diets, while the other two alternative treatments with total Ca and P available at: 91% Ca/80% P in diet 1; 87% Ca/91%P in diet 2; 111% Ca/103% P in diet 3, and 107% Ca/99% P in diet 4. The study shows significant statistical differences in several parameters of zootechnics like body weight, weight gain, and the total feed intake at the ages of 7 to 28 days. Adjusting diets can improve the broiler's yield during the mentioned growing period. Although several significant differences were found in the accumulated feed conversion at the ages of 21 to 28 days, it couldn’t be concluded with precision how the productive broilers’ yield could be affected. However, adjusting the diet could improve the broilers’ yield. The two levels of inclusion of Ca and P did not affect the mortality of the broilers. Regarding treatment, A: Control expressed a major percentage of bone ash which significantly improved the bone quality in the broilers.

La presente investigación, tuvo como objetivo evaluación de la inclusión de dos fuentes de fosfato dicálcico a través de la implementación de diferentes niveles de calcio y fósforo en dietas para de pollos de engorde con el fin de evaluar los parámetros zootécnicos tomando como criterios de evaluación: peso corporal, la ganancia de peso, el consumo de alimento, la conversión alimenticia, mortalidad acumulada y determinaron el porcentaje de cenizas en hueso del ave al día 14 de edad. Las aves fueron alimentadas ad libitum durante 34 días. Se utilizaron 2816 pollos mixtos machos y hembras de la línea Ross 308, fueron distribuidos en unidades experimentales según el diseño de bloques Completamente al Azar (DBCA) en 4 tratamientos con dieciséis repeticiones cada uno, Se utilizó la prueba estadística de Tukey al 5% para determinar las diferencias entre medias de tratamientos. Los cuatro tratamientos fueron los siguientes: dos de control con un aporte de Ca total (%) y P disponible (%) al 100% de inclusión en todas las dietas del ave mientras que los otros dos tratamientos alternativos con Ca total y P disponible al: 91% Ca/80% P en la dieta 1; 87% Ca/91% P en la dieta 2; 111% Ca/103%P en la dieta 3 y 107%Ca/99%P en la dieta 4. El estudio muestra cómo se encontraron diferencias estadísticamente significativas en varios parámetros zootécnicos como Pc, GDP y consumo de alimento total a las edades de 7 a 28 días. Ajustar las dietas en consecuencia puede mejorar el rendimiento de los pollos durante este período de crecimiento. Aunque se encontraron diferencias significativas en la conversión alimenticia acumulada a las edades de 21 y 28 días, no se pudo concluir con precisión cómo afectaría el rendimiento productivo de las aves. Sin embargo, ajustar la dieta puede mejorar el rendimiento de los pollos. Los dos niveles de inclusión de Ca y P no afectaron la mortalidad de las aves. En cuento a El tratamiento A: Control expresaron un mayor porcentaje de cenizas lo que mejoró significativamente la calidad ósea en pollos de engorde.