Efeito da inclusão de monensina sobre os níveis de glicose, desempenho produção e respostas fisiológicas de ovinos mestiços ½ Dorper + ½ Santa Inês no Semiárido Paraibano.

Abstract

This study aimed to evaluate the monensin inclusion of the effect on glucose levels, production performance and physiological responses of crossbred sheep Dorper ½ + ½ Santa Inês in Paraiba semiarid. 24 male sheep were used, not castrated crossbred Dorper ½ + ½ Santa Inês, average weight of 25 kg and approximate age of five months, raised in intensive system. A standard isoproteic and complete isoenergetic made up 60% of Maniçoba hay and elephant grass ground e40% of soybean meal diet was used, ground corn, mineral salt and vegetable oil, plus three levels of ionophores (30, 60 and 90 mg / animal / day). The design was the randomized blocks composed of 4 treatments and 8 repetitions. The animals were individually fed at 8 and 14 hours. The physiological variables were recorded once a week with two daily measures: the 9 and 15 hours and every other day. For evaluation of glucose were performed collections of venous whole blood samples from all animals two hours after morning feeding, biweekly, both for laboratory and kinetic evidence for the portable glucometer. Data were subjected to analysis of variance using the statistical program SAEG 9.1 and the averages compared by Tukey test at a significance level of 5% probability. A monensin did not affect blood glucose levels among the treatments. Treatment with 30 mg of monensin had the best performance in relation to weight gain. The difference between the techniques used to determine glucose demonstrates that further studies should be conducted to determine the reliability of the use of glucometer technique in ruminants.