Effects of environmental modification on some physiological and production responses of butana COWS

Abstract

the present study involved ten early lactating multiparous cows divided into two groups to 
investigate the influence of shading condition on the performance of Butana cows in Atbara 
livestock Research Station. The two groups were assigned to two treatments shaded versus 
unshaded cows. IV shaded yard demonstrated significantly (P00.01) a lower temperature 
compared to the non - shaded counterparts which resulted in reducing the respiration rate 
(1,.0.05). The shading condition also tended to alleviate the impact of high temperature thereby 
improved the lactation yield and its component percentages of fat, protein, solids - not -fat and 
ash as well as cow's body weight. Thus the convenient environment provided by the shading 
condition demonstrated a better physiological and production responses compared with the 
non - shading counterparts.