Efecto del nivel de dióxido de carbono de la incubadora sobre el desarrollo embrionario y parámetros de eclosión en pollo de engorda

Omar Prado-Rebolledo, José Castellano-Ortega, Johnatan Ruíz-Ramírez, José Zepeda-Batista, Arturo García-Casillas

Resumen

El oxígeno (O2) y el dióxido de carbono (CO2) son gases vitales para el embrión durante el proceso de incubación, su nivel es imprescindible en el momento del picaje, con la finalidad de evaluar el efecto del nivel de dióxido de carbono de la incubadora sobre el desarrollo embrionario, los parámetros de eclosión y el posterior crecimiento del pollo de engorda, se midió la pérdida de humedad, incubabilidad, peso del pollo, tamaño del pollo, glucosa sanguínea, hematocrito y proteínas plasmáticas. Un total de 600 huevos de reproductora comercial Cobb 500 de 41 semanas, se seleccionaron por peso de 65 y 70 g, se distribuyeron en dos máquinas incubadoras. Una máquina se mantuvo a 4000 ppm y la otra a 3000 ppm de CO2. Se utilizó un diseño factorial 2 x 2. La incubabilidad fue mayor a 3000 ppm de CO2 y peso de huevo de 65 g; el pollo más pesado fue con huevo de 70 g, a mayor ppm de CO2 menor pérdida de humedad, a menor ppm de CO2 se observó un pollo más grande, los niveles de glucosa no se afectaron, pero los valores de proteínas plasmáticas fueron menores a 3000 ppm de CO2. Se mejoran los parámetros de eclosión al bajar las ppm de CO2 durante el proceso de incubación.

Palabras clave

incubación; dióxido de carbono; embrión; gases

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