Technological factors of intensification of the use of sows

Abstract

In a single biosystem «animal-environment» the determinant factor of the environment is a complex of technological aspects. The optimum ratio between the biological features of sows and the specific conditions of their management form that level of intensity of use which within the production groups and herds as a whole makes it necessary to define an objective method for the selection of intensive type of sows, mostly adapted for use in specific conditions of industrial technology. At the same time the most important condition for obtaining high efficiency products in pig production is the use of highly productive animals, including imported ones and good adapted and acclimatized to the conditions of industrial technologies. Also advantage of the wet type of feeding over dry type for sows at farrowing was determined: on indicators of litter weight loss during suckling period - 40 %, on reduction of backfat thickness on withers - 39 % ,on the back - 43 %, on the loin - 57,5 %, sows multiple pregnancy - 3,1 %, piglet weight at birth - 8,3 %, litter safety by weaning on 35^th day - 8,4 %, weight of piglet at weaning - 8,1 %.