EN
On the base of metabolic unit body size an analysis of heat produced by broiler chickens was made. Three schemes for determination of total heat loss were analyzed. Equation 1 and 2 were described in the literature, and equation 3 was worked out by the authors. They were used to determine equation 4, which was consistent with that recommended by the International Organization of Agricultural Engineering. The balance of farm buildings requires definition of sensible heat. The authors suggest to calculate its values from own empirical equation 7, which is a result of data obtained from other papers and mathematical analysis of data obtained on the base of own research. The presented equations specify the amount and character of heat transmitted to the environment and may be used for designing air conditioning systems for broiler buildings.