This work was carried out with the purpose to evaluate the minerals retention during the pregnancy of goats with one or two foetus. The estimate of retention was based in the difference between the total of each mineral stored in the foetus, uterus, membranes, fetals fluids and mammary gland of animals in the differents stages of pregnancy and the total of each mineral stored in the empty goats, using the model of prediction: ln Y = A - B e -C X ; Y = A e B X and ln Y = A+Bx+Cx2, where x = time of pregnancy. The comparison of the estimative with the real values obtained show that the suggest model explained with coherence and precision the biological behavior of minerals retention during all pregnancy.
goats; pregnancy; minerals; minerals retention
