RELATIONSHIP BETWEEN ZN INTAKE, ZN ABSORP TION AND ZN CONTENT IN BODYBY PIGLETS

Nine weaned piglets were allocated to one of three experimental groups to determine the effect of different daily zinc intake (22.88, 49.7 a nd 74.5 mg). Three piglets were slaughtered after each of balance peri od. There was no significant difference in zinc content in the tissues . Zinc digestibility (23.16, 17.75 and 40.12%) and zinc absorption (20 .01, 16.40 and 39.55%) were significantly different. Zinc content in t he bristles was not affected by treatment. Zinc content in liver was l ower in the group with deficient daily zinc intake. On the basis of ou r results the following dependence was calculated: y = -19.29 + 27.69x (y = zinc content in the body in mg, x = live weight in kg, I(deter.) = 97.00).