Estudio del peso al nacimiento en terneros Wagyu puros y cruzas con Holando y Aberdeen Angus

The objective of this work was to measure the birth weight of purebred Wagyu calves and crossbred Wagyu calves with Aberdeen Angus and Wagyu with Holland. With this information we were able to establish significant differences between the pure Wagyu calves that weighed 25.93 Kg and the two crosses, the offspring of the Wagyu crosses with Angus weighed 31.91 Kg while that of Wagyu with Holando weighed 29.72 Kg. body condition at calving was a factor that significantly affected the weight of calves at birth, the higher the body condition, the higher the weight at birth. The category of the mother also affected birth weight significantly, the calves born to pure Wagyu heifers weighed 26.35 kg while the calves of pure Wagyu cows weighed 29.44 kg. The incidence of dystocic births was 11%. Regarding the sex of the calves, we found significant differences in birth weight between them, the males weighed 28.75 kg while the females weighed 27.05 kg, which represents 6% more weight in favor of the male. There were no significant differences when comparing the weight at birth of calves born in July, August and September, nor were there significant differences in the NP when comparing the offspring of the different bulls used, there was no paternal effect.