Sistemas de Manejo em Diferentes Horários do dia com Ovinos em Pastejo Rotacionado de Capim Massai

Abstract

The aim of this study was to evaluate different hours of grazing of sheep on the productivity of pasture Massai, as well as nutritional quality, ruminal degradability, voluntary consumption and ingestive behavior. The experiment was conducted in EMVZ-UFT, using randomized block design with repeated measures in time. Treatments consisted of grazing animals from 6:30 p.m. to 6:30 p.m. (T1), from 6:30 p.m. to 9:30 p.m., and from 4:30 p.m. to 6:30 p.m. (T2), and from 9:30 p.m. H at 4:30 p.m. (T3). The studied area was constituted of 12 pickets each (300 m2), with already established pasture of Massai with standard fertilizations. The experimental area was managed under intermittent stocking, 21 sheep without defined racial pattern were used were used for pasture management. Bacteriological, agronomic and structural evaluations of the Massai grass were carried out. The consumption was evaluated through titanium dioxide as an external marker, and, from the visual observation, the ingestive behavior of the animals was verified. The different management did not change the forage yield. However, they altered the nutritional parameters, the digestibility of the grass, and the voluntary consumption and ingestive behavior. The alternative management did not negatively alter the performance of the animals, but studies that investigate the physiological parameters and their tools of adaptation to the environment should be performed.