Ocena warto?ci rze?nej i jako?ci tusz jagni?t rasy czarnog?ówka pozyskiwanych w warunkach wypasu ekstensywnego na terenach górskich

摘要

The study was performed on 20 blackhead sheep lambs, after weaning held under grazing on a mountain pasture, feeding at will, slaughtered at a body weight of 35.0 kg. A high carcass quality assessment based on the EUROP classification has been shown. The lambs of both sexes mostly obtained category U, with a small percentage of R category in rams from individual litters, and a positive assessment of body fat (categories 1 and 2) and mainly white fat colour with very cohesive or cohesive consistency. The relatively long period of fattening (about 261 days) had no effect on increasing the level of fat, and the tissue composition of hind legs, pointed to the possibility of producing lambs from blackhead sheep under extensive grazing. Lamb production based on the breed, carried out in mountain conditions, allows the acquisition of high quality material with excellent quality of slaughter carcasses.