Differences by the number of final products from siresof foreign selection in conditions of a large industrial pig complex

Abstract

The efficiency of progeny obtained from foreign breeding boars at a large domestic pig complex was studied: OJSC "State farm-factory "SOZ" of Gomel area and Gomel region with capacity of 108 thousand animals of the annual fattening. Researches helped to determine that the indicators of quantity and quality of sperm, fertilization rate, the output of live piglets per litter do not give a reliable estimate of the productivity of hogs in large-scale industrial production conditions. The difference in actual productivity between the groups of Landrace boars of Polish and German selection by yield of the final produce was 16.5 % in favor of the Polish selection animals. Individual differences between the first and the last rank boar by the amount of obtained pork counted per 1 litter was 403 kg or 44.7 % (P <0.001).