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FWS Seeks Public Comment on Plan
to Restrict Giant Invasive Snakes
| » Publication : J Herpe Med Surg : J Herpe Med Surg Fall'03 Vol. 13 No. 3 |
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J Herpe Med Surg
Sonographic Determination of Pregnancy in Amazon Tree Boas, Corallus hortulanus * Hock Gan Heng, DVM, MVS, Robert H. Wrigley, BVSc, MS, Cord F. Offermann, DVM
* Department of Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences Colorado State University, Fort Collins, CO 80523, USA Three Amazon tree boas, Corallus hortulanus, were evaluated sonographically for pregnancy, four to five months post-fertilization. Sonography revealed hyperechoic, segmented, linear structures (the fetal spine) and presence of cardiac activities as flickering motion. Fetus presentation varied, some curled concentrically and others folded back on themselves. Differing amounts of amniotic and/or allantoic anechoic fluid and residual echogenic yolk were present. Sonography of unfertilized ova revealed a homogeneous echogenic mass surrounded by a linear hyperechogenic membrane. [Abstract] |