Опыт разработки и внедрения технологии модифицированного трехпородного промышленного скрещивания с использованием свиноматок собственной репродукции
2011
Mordechko, P.P., Grodno State Agrarian Univ. (Belarus)
In the conditions of the Republic of Belarus there was studied, introduced and evaluated the efficiency of the technology of a modified three-breed commercial cross breeding and replacement breeding of swine with the use of national reproduction sows at the swine production complex 'Rosskij kombikormovoi zavod ' (Belarus). An introduction of modified technology of a three-breeding rotational terminal industrial crossing with use of own reproduction sows showed the following advantages: simplicity in the organization; absence of necessity to purchase repair sows from other facilities; possibility of wide use for pork production thoroughbred and crossbreeding male pigs of specialized meat breeds; use of a principle of 'floating kernel' when only the best sows of herd could be used for obtaining of replacement sows; full use of the selection effect, direct effect of heterosis and complementary effect from use of fatherly and parent forms in crossing and on 2/3 - parent effect of heterosis; rhythmical repair of herd and rational use of a livestock. The proposed technology made it possible to increase the average pregnancy of sows by 11,3%, to lower quantity of dead born piglets on 64,1% and the cost price of a pig at a birth on 10,1%.
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