Crecimiento de terneros Hereford y Angus pedigrí desde el nacimiento hasta el destete

Goal. Study the growth of calves of the Angus and Hereford races from birth to weaning. Methods. The experiment consisted of the control of the evolution of the living weight of calves of the Cueva del Tigre Cabaña born in the spring of 2020, being 22 Hereford calves and 17 Angus calves. Heavy were performed from birth to weaning monthly from september 2020 to may 2021, at which time the definitive weaning of calves was performed. The heavy one at birth was made with mechanical balance, while for the following heavy a tru test, model s2, digital brand balance was used. Results. It was observed how the EPD is a key tool to be able to select and get a genetic advance towards the goal you want to achieve, without losing the phenotypic point of view trying to achieve a balance between these two aspects, genotype and phenotype. Conclusions. The growth curves for both races from birth to weaning, presented linear adjustments of order 1 without statistically significant differences. The sex of the calf affects both weights at birth and weaning