1.
Analyst
; 123(12): 2633-6, 1998 Dec.
Article
in English
| MEDLINE
| ID: mdl-10435314
ABSTRACT
For a number of species it is known that nortestosterone, either the alpha- or beta-epimer, can be of endogenous origin. For goats and mares similar results have not yet been published. As a follow-up on the experiments with cattle, a large number of urine samples per animal were collected from pregnant goats, sheep and mares. These samples were analysed for the presence of alpha- and beta-nortestosterone and alpha-estradiol using GC-MS. The results show that in the goats and mares studied alpha-nortestosterone is present during pregnancy. In this study no alpha-nortestosterone could be demonstrated in sheep. From our study and recently published data, however, it is proven that alpha-nortestosterone can occur endogenously.
Subject(s)
Anabolic Agents/urine , Horses/urine , Nandrolone/urine , Pregnancy, Animal/urine , Ruminants/urine , Anabolic Agents/chemistry , Animals , Chromatography, High Pressure Liquid , Female , Gas Chromatography-Mass Spectrometry , Goats/urine , Isomerism , Nandrolone/chemistry , Pregnancy , Sheep/urine , Testosterone/chemistry , Testosterone/urine
2.
Z Geburtshilfe Gynakol
; 174(2): 181-6, 1971 Apr.
Article
in German
| MEDLINE
| ID: mdl-5154485
Subject(s)
Sterilization, Tubal , Castration , Contraceptives, Oral/therapeutic use , Family Planning Services , Female , Germany, West , Humans , Jurisprudence , Male , Socioeconomic Factors , Vasectomy
3.
Z Geburtshilfe Gynakol
; 174(1): 1-8, 1971.
Article
in German
| MEDLINE
| ID: mdl-4929055