The effect of testosterone on the development of the perianal glands of the guinea pigcavia porcellus (L)
โ Scribed by Harmsen, R. ;Sittig, N.
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 296 KB
- Volume
- 186
- Category
- Article
- ISSN
- 0022-104X
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โฆ Synopsis
Abstract
Daily injections into female and castrate guinea pigs resulted in an increase in size and scent production of the perianal glands. Before testosterone application the glands were significantly smaller than those of entire males. After 45 days of treatment the glands of castrates and females were indistinguishable from the glands of entire males.
The perianal glands must be considered secondary sexual characteristics. Social behaviour which is affected by exogenous testosterone may in some cases be affected via interference in the normal scent production.
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The number of glands at a constant level within the wall of the common bile duct was measured in the foetus, infant, child and adult. The number of glandular acini increases from foetal life to reach a maximum within the 1st year of life. Thereafter it remains remarkably constant. This is in contras