Abstract
The study includes six adult healthy hen turkey. The cloaca has three compartments separated by two circular folds and next to rectum is the coprodeum which the largest and measured (2.5±0.2cm) in length and (2.1±0.1cm) in diameter. The middle and smallest is the urodeum that measured about (1.01±0.2cm) in length and (1.2±1cm.) in diameter, that receives the ureter and left oviduct. Posteriorly, the proctodeum that measured about (1.4±0.1cm) in length and (1.6±1cm.) in diameter. The coprodeum mucosa has short and flat villi. The urodeum mucosa has tall branching pyramidal mucosal villi. The mucosa of proctodeum has lost the villi pattern. The three compartments were lined with mucous secreting columnar cells, most of these epithelial cells were positive for Alcian blue (2.5pH) stain and few were positive for PAS stain. The epithelial tubular glands showed positive reaction for Alcian blue satin only. The lamina propria of these compartments was cellular loose connective tissue displayed numerous of lymphatic nodules. The muscular mucosa is lost in proctodeum only. Tunica muscular is composed of two layers of smooth muscles fibers in coprodeum and urodeum and turned into skeletal type in proctodeum. The mean height of mucosal villi has significantly increased in urodeum.
Highlights
(2.5±0.2 cm) in length and (2.1±0.1cm) in diameter
Acoprourodeal fold separated the coprodeum and urodeum (Fig.[1]). This result was similar to the finding of (9) in Gallus domesticus, and the present result suggests that the largest size of coprodeum make it a temporary site as storage for a large quantity of fecal contents and give a suitable time for microflora to recycle some of body nitrogenous and electrolytes requirements
On other hand observation has agree with result of (10) whom studied the cloaca of 67 avian species, which included both sexes, with different habitats and differing dietary habits, found that in all species the ureters have been opened into the urodeoum except those in Rhea bird and several tinamous species their ureters have been opened into the proctodeum and their urodeum was received the ductus deferens or oviduct
Summary
(2.5±0.2 cm) in length and (2.1±0.1cm) in diameter. The middle and smallest is the urodeum that measured about (1.01±0.2 cm) in length and (1.2±1cm) in diameter, and receives the ureter and left oviduct. The cloaca was a bulbous structure and its internal chamber showed three separate compartments; the coprodeum, urodeum and proctodeum (Fig.[1]). The length and the height of the primary and secondary cloacal folds showed the same significant differences (Table, 1).
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