The development of the reproductive organs of the male giraffe, Giraffa camelopardalis.
J Reprod Fertil
; 52(1): 1-7, 1978 Jan.
Article
em En
| MEDLINE
| ID: mdl-621681
ABSTRACT
The reproductive organs of the male giraffe differ little in morphology and histology from those of other ungulates. There is some indication that gonadal hypertrophy occurs in late fetal life. Spermatogenesis begins at 3-4 years of age and coincides with a rapid increase of testicular weight and seminiferous tubule diameter. In the fetal testis the main hormone is androsteredione (2.73 microgram/g) but in adult testes testosterone is predominant (less than 10.08 microgram/g) and delta' testosterone may also be present.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Artiodáctilos
/
Testículo
Limite:
Animals
Idioma:
En
Ano de publicação:
1978
Tipo de documento:
Article