| Title: | Changes with age in the occurrence of C19 steroids in the testis and submaxillary gland of the boar |
| ISSN/ISBN: | 0022-4251 (Print) 0022-4251 (Linking) |
| Abstract: | "After extraction from the testes of boars of different ages, C19 steroids including 16-androstenes were determined by gas-liquid chromatography. Similarly, 16-androstenes were determined in the submaxillary glands of these boars. A high concentration of testosterone was found in the testes of 84-day-old fetuses, and this might be significant in the differentiation of male behaviour. The amount of testosterone exceeded that of androstenedione during postnatal development, and dehydroepiandrosterone and 5-androstenediol as free and sulphates were found in high concentrations particularly in postpubertal boars, suggesting that the 5-ene pathway for the synthesis of testosterone might be important. There was a change in the predominance of individual 16-androstenes in the testis during development, which closely paralleled the sequence for the biosynthesis of these compounds proposed from previous studies in vitro. Whereas the amount of 5alpha-androst-16-en-3beta-ol exceeded that of 5alpha-androst-16-en-3alpha-ol in post-pubertal testes, 5alpha-androst-16-en-3alpha-ol was predominant in the submaxillary glands at all ages. The high concentration of 16-androstenes found in the mature boar, are discussed in relation to their release as pheromones and as factors responsible for taint in boar meat" |
| Keywords: | "Age Factors Androstenediols/analysis Androstenedione/analysis Androstenes/*analysis Androstenols/analysis Animals Chromatography, Gas Dehydroepiandrosterone/analysis Female Fetus Infertility Leydig Cells/cytology Male Organ Size Submandibular Gland/*analy;" |
| Notes: | "MedlineBooth, W D eng England 1975/03/01 J Reprod Fertil. 1975 Mar; 42(3):459-72. doi: 10.1530/jrf.0.0420459" |
