منابع مشابه
Malignant Melanoma in a Female Mallard Duck (Anas platyrhynchos)
Melanomas are malignant neoplasms originating from melanocytes. They reported in birds. In this case, macroscopic and microscopic (the histopathologic and IHC) findings supported a final diagnosis of cutaneous malignant melanoma in a mallard duck (Anas platyrhynchos). A female mallard duck (Anas platyrhynchos) was observed with a mass on the ventral portion of the neck. Th...
متن کاملDescription of the mallard duck (Anas platyrhynchos) karyotype.
The karyotype of the mallard duck, Anas platyrhynchos, was characterised on the basis of R and C bands. Chromosomal preparations obtained from in vitro blood lymphocyte cultures were RBG- and CBG-stained. The structures of nine and 14 pairs of chromosomes were analysed by the RBG and CBG chromosome banding techniques, respectively. The location of R bands, as well as the size and arrangement of...
متن کاملTracheal resection and anastomosis in a mallard duck (Anas platyrhynchos) with traumatic segmental tracheal collapse.
A male mallard duck (Anas platyrhynchos) presented for examination for acute respiratory distress and lethargy. The duck had experienced recurrent episodes of respiratory distress since being attacked by a raccoon the previous year, resulting in neck lacerations. Diagnostic tests, including a complete blood count, plasma biochemical analysis, radiography, and tracheoscopy, revealed a collapsed ...
متن کاملCranial joint histology in the mallard duck (Anas platyrhynchos): new insights on avian cranial kinesis.
The evolution of avian cranial kinesis is a phenomenon in part responsible for the remarkable diversity of avian feeding adaptations observable today. Although osteological, developmental and behavioral features of the feeding system are frequently studied, comparatively little is known about cranial joint skeletal tissue composition and morphology from a microscopic perspective. These data are...
متن کاملAfricas Role in Multilateral Trade Negotiations
1846 Countries in Sub-Saharan Africa won fewer concessions on their exports in the Uruguay Round than did other developing countries, but they still emerged facing fewer or lower restrictions than others. They should be more active in the next Round, focusing negotiations not on trade preferences but on bound most-favored-nation tariff reductions. Summary findings Openness and liberal trade pol...
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ژورنال
عنوان ژورنال: Bulletin of the African Bird Club
سال: 1996
ISSN: 1352-481X
DOI: 10.5962/p.308913