Indian Journal of Animal Research

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Indian Journal of Animal Research, volume 49 issue 6 (december 2015) : 860-862

Gross anatomical features of the sternum of green-winged macaw (Ara Chloroptera) 

A.R. Sreeranjini*, N. Ashok, V.R. Indu, K.M. Lucy, S. Maya1, J.J. Chungath1
1<p>Department of Veterinary Anatomy and Histology, College of Veterinary and Animal Sciences,&nbsp;Mannuthy, Thrissur- 680 651, India.&nbsp;</p>
Cite article:- Sreeranjini* A.R., Ashok N., Indu V.R., Lucy K.M., Maya1 S., Chungath1 J.J. (NaN). Gross anatomical features of the sternum of green-wingedmacaw (Ara Chloroptera) . Indian Journal of Animal Research. 49(6): 860-862. doi: 10.18805/ijar.7051.

ABSTRACT

The present study was conducted on the sternum of an eight year old, male Green-winged Macaw. The sternum was quadrilateral with dorsal concave and ventral convex surfaces and four borders. The dorsal surface presented numerous pneumatic foramina. The ventral surface furnished a large, boat shaped keel. The anterior extremity showed two facets for coracoid. The anterior and posterior borders were convex. The lateral border on either side presented six costal facets. Two distinct oval foramina were seen near the posterior border.  Craniolateral processes were short and stump-like. Caudolateral processes fused with the median trabecula on either side. The rostrum was distinct. The morphological features of the sternum of Green-winged Macaw conformed to that of flying group of birds. It was almost similar to that of goose in its anterior half and to that of pigeon in its posterior half. 

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