FOLLICULAR DEVELOPMENT AND OVULATION DETERMINED BY ULTRASOUND IMAGING IN THE VIVIPAROUS LIZARD BARISIA IMBRICATA (REPTILIA: ANGUIDAE)

Ovarian follicular development and ovulation were studied by ultrasound scanning in the Mexican viviparous lizard Barisia imbricata. A linear ultrasound unit with variable capacity from 5 to 10 MHz was used. Vitellogenic follicle diameters ranged from 3.3 to 9.8 mm and were present in the lizards be...

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Bibliographic Details
Published in:The Southwestern naturalist 2006-09, Vol.51 (3), p.401-406
Main Authors: Martínez-Torres, Martín, Guzmán-Rodríguez, Raymundo, Cárdenas-León, Mario, Brunner-Reynaldo, Noemí
Format: Article
Language:English
Subjects:
Anguidae
Animal vivipary
Follicles
Follicular development
Lacertilia
Laparotomy
Lizards
Ova
Ovaries
Ovulation
Reptiles
Reptilia
Ultrasonography
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Summary:Ovarian follicular development and ovulation were studied by ultrasound scanning in the Mexican viviparous lizard Barisia imbricata. A linear ultrasound unit with variable capacity from 5 to 10 MHz was used. Vitellogenic follicle diameters ranged from 3.3 to 9.8 mm and were present in the lizards between September and December. Also, corpora lutea and uterine eggs were identified. The ultrasound is an excellent non-invasive technique to determine seasonal reproductive changes and can be combined with other techniques to monitor the reproductive process.
ISSN:0038-4909
1943-6262
DOI:10.1894/0038-4909(2006)51[401:FDAODB]2.0.CO;2