[Effect of the barn environment with and without windows in the rearing of pigs].

In the years 1979 and 1980 the microclimate in two types of calving rooms AGRA was studied: rooms with and without windows. A comparison demonstrated that in the rooms with windows the air flow in the zone of abode of animals was higher, rather cooling the piglets, which was not desirable. The light and working conditions in this calving room were better. The temperature and moisture regime in the calving room with windows was influenced negatively because in spring and autumn the stable was cooled by cold outside air and in winter the air temperatures were reduced by heat removal through the windows. In the stable with windows the number of weaned piglets per sow was higher and the mortality rate was lower. The results of rearing are also influenced by the quality of piglet management.