EN
The content of unsoaped substances, carotene and vitamin A in fats rendered from perinephral and mane fat tissues from car, casses belonging to three qualitative classes was examined. It was found that this fat is characterized by a similar level of unsoaped substances (an average for the perinephral fat 0.60% and for the mane fat 0.57%). A significantly higher content of carotene and vitamin A in the perinephral fat was found, an average 254.2 ug and 73.7 ug per 100 g of fat, respectively, compared to the mane fat (an average 161.4 ug and 62.6 ug per 100 g of fat, respectively). However, the fat gained from carcasses belonging to various qualitative classes does not differ significantly by the content of the examined constituents.