Effect of high ambient temperature on behavior of sheep under semi-arid tropical environment

摘要: High environmental temperature is a major constraint in sheep production under semi-arid tropical environment. Behavior the earliest indicator of animal’s adaptation and responses to alteration. Therefore, objective this study was assess effects high ambient on behavior The experiment conducted for 6 weeks 16 Malpura cross (Garole × (GMM)) rams. rams were divided equally into two groups, designated as C T. kept comfortable conditions served control. T exposed different at hours day climatic chamber, simulate summer tropic. behavioral observations taken by direct instantaneous observation 15-min intervals each animal individually. feeding, ruminating, standing, lying behaviors recorded twice week from morning (0800 hours) afternoon (1700 6 weeks. Exposure (T) significantly (P < 0.05) decreased proportion time spent feeding during period most compared C. rumination lower group animals more standing position overall panting hour, total higher result indicates that exposure severely modulates which directed circumvent effect stressor.