DEVELOPMENT OF A RADIOIMMUNOASSAY FOR CANINE LUTEINIZING HORMONE

Abstract

SUMMARY A double antibody radioimmunoassay for canine luteinizing hormone (LH) was devised. The assay can measure immunoreactive LH in the peripheral plasma of the normal male and female dog. An increase in hormone concentration was found on the 2nd day of oestrus in the female. Ovariectomy raised plasma concentrations of the hormone to levels greater than those observed during oestrus. The administration of LH-releasing factor induced a rapid increase in the plasma concentrations of LH.