PROTEIN-VITAMIN-MINERAL ADDITIVE Russian patent published in 1997 - IPC

FIELD: feeding the farm animals, pigs and poultry, in particular. SUBSTANCE: additive contains meat-and-bone meal and/or fish meal in amount of 20-40 mas. %; cake or oil-seed meal of sunflower, and/or soya, and/or rape, 15-35 mas. %; premix 8-12 mas.%, dried sapropel, the balance. Sapropel is used as additional source of nutritive, mineral and biologically active substances. EFFECT: higher efficiency. 2 cl, 5 tbl