How To Evaluate Effect Of The Shade Type On Feedlot Cattle Performance : Growth, Body Reactions, Physiological Responses and Economical Comparison

All animal life sides are influenced by surroundings. Inappropriate Surroundings represents sizable economic losses. The most important stresses are those that have resulting from housing, the rational use of Housing technologies is crucial to the survival and profitability of livestock enterprises. The good house is which meets both the needs of the animal and the stockman at a reasonable cost. In tropical and subtropical arias, open loose housing is preferable; central shed is essential structure part in the corral; traditional sheds may be costs more than 45% from the total cost of the open yard unit. Study of the physiological responses under three different types of shading models, effect of hot humid season on calves responses and comparing the three models of shading economically to determine which consequences are reflected on the real growth of the calves, to decide whether these models are satisfactory in their conditions or should be remodeled, or abandoned and replaced by economically way, were the main objectives of the present work, to approaching from stockman who still have a real problem in selection of appropriate housing to manage adverse weather economically.