Comportamento ingestivo de novilhos f1 retinto-nelore e nelore suplementados em pastagem braquiária

Abstract

The objective of this work was to evaluate the ingestive behavior of F1 Retinto-Nelore and Nellore steers, supplemented on brachial pasture with a semi-intensive system and submitted to supplementation composed of corn bran, soybean bran and biscuit bran. The experiment was carried out in the beef cattle sector, located in the Campus of Engineering and Agricultural Sciences of the Federal University of Alagoas. Twenty cattle were used, 10 F1 Retinto-Nelore and 10 Nelore steers, one and a half years old, not castrated and with an average initial weight of 350kg. The behavioral variables that were evaluated were: grazing, ruminating (standing and lying down), idleness (standing and lying down), drinking water, ingesting supplements and walking. Notes were taken every 10 minutes in 2 days of observation, 12 hours a day. There was difference (P<0.05) in the variables: grazing, ruminating while standing and ingesting supplement. Idle standing, lying down, walking and drinking water did not show differences (P>0.05). Thus, comparative criteria were obtained to assess which racial group stands out, which in the present study were the F1 Retinto-Nelore animals.

Keywords: Performance; grazing; idleness; ruminating; use.