| 摘要 |
FIELD: agriculture, animal science, swine breeding. SUBSTANCE: it is necessary to conduct crossbreeding in sows and boars of three breeds: large white (LW), large black (LB) and prematurity meat of southern type (PM- 1) to obtain three-breed breeding swine at the following thorough-bred state portions: 1/4LW x 1/4LB x 1/2PM-1. Maternal foundation could be represented by sows from 1/2LW x 1/2LB crossbreed that should be crossbred with purebred boars of premature meat breed of southern type (PM-1). The suggested method considerably increases growth energy (average daily weight gain), decreases expenditures of fodders/kg body weight gain. EFFECT: higher efficiency of matching. 1 ex, 1 tbl |
