Iodotironine totali e libere nella Cavalla gravida nel primo trimestre di gravidanza

The thyroid function was evaluated in 20 healthy mares, two to six years old. The mares were divided in two groups, on the basis of their physiological state: Group A= no. 10 pregnant mares; Group B= 10 non-pregnant mares. For group A, blood samples were taken after the ovulation (this is the baseline sample) and then, every 7 days, for 12 consecutive weeks. Blood tests were performed on the Group B following the same schedule. One way RM-ANOVA showed significant effects of time (F=15,82; P<0,0009) on the changes of T3 only. In the first quarter of pregnancy, total and free iodothyronines showed higher levels in pregnant mares than control ones.