Comportamiento de amamantamiento de terneros en las razas Angus, Hereford, Brangus y Braford.

The objective of the study was to determine the suckling behavior and growth of calves from the Angus, Hereford, Brangus, and Braford breeds. The research was conducted at Estancia La Magdalena, owned by "Los Tordos SA," located 17 km from kilometer 52 of route 31 in the 12th Police Section of the Department of Salto, Uruguay.

The survey was carried out from March 2023 until the end of August of the same year. It's worth noting that the animals were kept under the same conditions throughout the experiment. A total of 24 cows and 24 calves were used for the study; the mothers were primiparous, born in the spring of 2020. The sample consisted of 6 pairs of mother and calf for each breed, including 3 male and 3 female calves.

Regarding feeding, the animals grazed on natural pasture throughout the experiment. The land of the establishment is relatively high in natural fertility.

From birth to weaning, monthly observations were conducted throughout the day to monitor the activities of the calves, including suckling, resting and grazing. A total of 5 observations were made. The results indicate that there are no significant differences in suckling, resting and grazing behaviors among calves of the different breeds evaluated.