Plasma milieu of triiodothyronine and thyroxine in normally calving and dystocia affected buffaloes

Abstract

The plasma triiodothyronine (1₃) and thyroxine (1₃) concentrations were estimated to study the thyroid status around parturition and in dystocia affected buffaloes. Six normally calving buffaloes (group 1) and 26 dystocia affected buffaloes subjected to fetotomy (group 2) under epidural anaesthesia (5) or epidural anaesthesia and chlorpromazine (CPZ) tranquilization (5) or caesarean section (group 3) under local infiltration analgesia(6) or local infiltration and CPZ tranquilization (10) were utilized. In group 1, plasma 1₃ and 1₃ concentrations which fluctuated nonsignificantly prepartum increased by levels were significantly lower at presentation than controls. Plasma 1₃, levels in group 2 buffaloes were significantly lower at presentation, however, these did not differ from controls in group 3 buffaloes. The animals which survived following obstetrical manipulations had higher 13 and T₃ levels, whereas, those which died later on continued to have depressed thyroid hormone levels.