Effect of thermal exposure on physiological adaptability and seminal attributes of rams under semi-arid environment

摘要: Abstract Thermal stress in hot semi-arid environment is a major limitation of sheep production tropical and sub-tropical climatic condition. The animals tend to maintain homeostasis through physiological adjustments (maximum temperature reaches up 47.5 °C). Therefore, the present study was carried out assess effect thermal exposure on adaptability seminal attributes rams under environment. experiment conducted for eight weeks involving sixteen Malpura crossbred (GMM: Garole X Malpura). were divided equally into two groups, designated as G1 G2, respectively. (Control) group kept shed naturally prevailing without artificial manipulation ambient (Temperature 30.48±0.38 °C; Relative Humidity 28.59±1.15%). G2 exposed different at hours day (38 °C 1000–1100 h; 40 °C 1100–1200 h; 42 °C 12:00–1300 h; 43 °C 1300–1400 h; 44 °C 1400–1500 h 1500–1600 h) chamber exposure. Physiological responses, blood biochemical profile, endocrine sexual behavior measured both groups. significantly (P