Effect of Tannation on Ovine Follicle Stimulating Hormone

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Abstract
Tannates of ovine pituitary follicle stimulating hormone (NIH-FSH-S1 and NIH-FSH-S2) were prepared and assayed simultaneously with equal amounts of untannated FSH. Three assay systems were employed[long dash]a general gonadotropin assay utilizing both ovarian and uterine weights of intact, immature female rats, the standard augmentation reaction assay, and modifications of both assays conducted at different time intervals with either single or multiple injection schedules. FSH activity as determined by standard or modified assay systems was not potentiated by tannation.