Morphological study of laying and non-laying female genital system in peacock (Pavo cristatus)

Abstract

Although the avian female genital system has been studied in several birds, it's yet not been done regarding peacocks. Thus, this study approved recognizing its morphological architecture of it during laying and non-Laying periods with blood supply. The left ovary during active season showed three types of follicles: small, medium, and large; the same in non-laying with less measurement. The left oviduct was more convoluted in laying than in non-laying; its length is double that of non-laying. Both included six regions. The infundibulum had two parts; funnel and neck. The funnel internally showed a translucent rough surface, with not very well noTable folds changed into obviously distinguished folds towards the neck. Neck: very low longitudinal mucosal folds started to increase in depth towards the magnum, which was the longest and the most highly coiled part, compared to other regions with huge mucosal folds of wavy borders separated by indentations. Isthmus appeared shorter, thinner, and less coiled, with longitudinally mucosal folds straighter and lower than magnum; however, they were more prominent in laying than in non-laying. The uterus was the thickest and the widest region, its mucosal folds arranged longitudinally, intersected by 4-5 transverse furrows, in non-laying it was less thickness and size with the same arrangement. The (UVJ) in both laying and non-laying peahens is a very short region connecting the uterus into the vagina and protruding above lumens, characterized by numerous short mucosal folds. The vaginal mucosal folds were continuation to those of the junction region and appeared whitish and longitudinally oriented.

Keywords

• peahen
• ovary
• oviduct
• anatomy
• blood supply