Measurement of plasma oestradiol after an injection of a gonadotrophin as a test for neutered bitches

作     者：Jeffcoate, IA McBride, M Harvey, MJ Aughey, E 

作者机构：Univ Glasgow Sch Vet Div Physiol Glasgow G61 1QH Lanark Scotland Univ Glasgow Sch Vet Dept Vet Clin Studies Glasgow G61 1QH Lanark Scotland Univ Glasgow Sch Vet Div Anat Dept Vet Preclin Studies Glasgow G61 1QH Lanark Scotland 

出 版 物：《VETERINARY RECORD》 (兽医记录)

年 卷 期：2000年第146卷第21期

页      面：599-602页

核心收录：

学科分类：0906[农学-兽医学] 09[农学] 

主　　题：狗/生理学 雌二醇/血液 动情期/生理学 促性腺素类/投药和剂量 卵巢切除术/兽医学 动物 女(雌)性 

摘      要：Twenty-eight bitches with unknown reproductive histories were injected intravenously with either human chorionic gonadotrophin (hcc) or equine chorionic gonadotrophin (eCG) (pregnant mare s serum gonadotrophin) and their oestradiol responses were measured at the time of the injection and 90 minutes later. They were at various stages of the oestrous cycle as determined by histology and a progesterone assay for luteal function. Twenty-six of them were considered to be entire because they showed either an increase in plasma oestradiol over preinjection values or steady high values. The ovaries were removed from 25 of these animals and the other probably had a remnant of ovary because it came into oestrus some weeks later. In two remaining bitches no oestradiol could be detected either before or after the injection of gonadotrophin and they were predicted to have been neutered, which was confirmed at laparotomy. in the entire bitches, the highest plasma oestradiol concentration was measured during metoestrus and the lowest during anoestrus.