Análisis comparativo de los niveles de proteína sanguínea y progesterona en cabras cruzadas y cabras de Damasco en la región árida de Argelia
Resumen
El estudio evaluó la influencia de la raza y el estado reproductivo sobre los perfiles de progesterona y proteínas sanguíneas en una muestra de diez cabras de entre 1,5 y 3 años. Las cabras fueron categorizadas en dos grupos iguales: la raza Damasco y un grupomestizo (Damasco x Arbia). Todos los sujetos fueron sometidos a sincronización de estros seguida de monta natural. Se recogieron muestras de sangre en varias etapas: antes de la introducción de esponjas intravaginales, al principio de la gestación (30 días después del monta), a mitad de la gestación (90 días), al final de la preñez (130 días) y en el periodo posparto a los 30 días. Los resultados revelaron un impacto significativo (P < 0,01; P < 0.001) de la etapa productiva en los niveles de progesterona en ambos grupos, junto con niveles notables de albúmina en las cabras de Damasco (P < 0,05; P < 0,01). Sin embargo, las concentraciones de proteínas totales y globulina no mostraron variaciones significativas a lo largo de las fases fisiológicas en ninguno de los grupos. Se detectaron efectos específicos relacionados con la raza en el principio y medio de la preñez para la progesterona, y en el principio de la gestación y la lactancia para los niveles de proteína total y para la globulina durante la lactancia. Los cambios en los perfiles de progesterona y proteínas en ambos grupos sugieren adaptaciones fisiológicas en las cabras para compensar las mayores demandas de la gestación y lactancia en el entorno árido de Argelia.
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