[Thermal stability of paneled swine-breeding structures]

Veterinary and hygienic evaluation was made of the thermal stability of panel buildings of the standard BS-70 for the breeding and fattening of pigs. A low correlation was established between the temperature amplitude in- and out-doors, i.e., the thermal stability of the ethologic totality of the buildings was considerable. The correlation between the temperature outdoors and the temperature difference (deltat) as regards the temperature indoors was high and negative, i.e., at lower outdoor temperature the gradient deltat rose, and vice versa. Buildings without heating, having a BS-70 construction retained an optimal temperature regime in the sections for breeding sows, which was within the range of -15 degrees C up to +26 degrees C and in those for fattening--from -21 degrees C up to +24 degrees C. Summer droughts constitute a technologic and technical problem.