Morfología del oviducto y el ovario de atractus sp. (serpentes, colubriade)
La información acerca de la reproducción de las serpientes que habitan las tierras altas de los trópicos y más aún de aquellas que poseen hábitos fosoriales es escasa. En este trabajo se describe la morfología macro y microscópica del oviducto y el ovario de Atractus sp, y se estudia la actividad re...
- Autores:
-
Calvo Castellanos, Maria Fernanda
- Tipo de recurso:
- http://purl.org/coar/version/c_b1a7d7d4d402bcce
- Fecha de publicación:
- 2016
- Institución:
- Universidad Industrial de Santander
- Repositorio:
- Repositorio UIS
- Idioma:
- spa
- OAI Identifier:
- oai:noesis.uis.edu.co:20.500.14071/34250
- Palabra clave:
- Atractus Sp
Infundíbulo Posterior
Receptáculos De Esperma
Transición Útero Vagina
Madurez.
It is scarce the information about the reproductive biology of the highland tropical snakes and even more if they are fossorial. This work describes the morphology of the female reproductive tract of a population of Atractus sp
and its reproductive activity during some months. Atractus sp has a paired and asymmetric tract. The vitellogenic females exhibit a maximum of 12 ovarian follicles of different sizes; these follicles are grouped in series of two follicles of similar size and growth state per ovary. Thus
the clutch size varies from two to four eggs. Histologically
the oviduct is divided in infundibulum
uterus
transition uterus-vagina
and vagina. The luminal epithelium of the entire oviduct is columnar to cuboidal with ciliated and nonciliated cells in constant secretory activity. Abundant shell glands are found in the uterus; they have increased secretory activity in vitellogenic females. Sperm storage was found in vitellogenic females in the posterior infundibulum at the bottom of sacs formed by invaginations of the luminal epithelium. Sperm was also found in adult females (vitellogenic and no vitellogenic) in the transition uterus-vagina and in the vagina
located sparse in the lumen and organized in the basal areas of epithelial folds in which the luminal epithelium is mainly ciliated. The minimum size of sexual maturity was 216 mm and during the sampling time reproductive females were ever found
suggesting a continuous reproductive activity
- Rights
- License
- Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)