Effects of castration and sex on the performance [growth and weight] of fattening lambs

agneau animal animal domestique animales animales de carne animales laniferos animals artiodactyla artiodactyle augmentation de rendement aumento del rendimiento biological development bovidae bovide breeding breeding aims castration cordero crecimiento croissance domestic animals fisiologia fonction physiologique gain de poids ganado ganancia de peso gonadectomia gonadectomie gonadectomy growth jeune animal lambs livestock mammals meat animals objetivo de mejoramiento ovin ovinos physiological functions physiologie physiology rumiante ruminant ruminants sex sexe sexo sheep sterilisation sterilization surgical operations vertebrados vertebrates vertebre weight gain young animals