Micrometrical Observations of Various Tunics of Intestine in Quail

Abstract

The present study was conducted on 48 Japanese quail birds (Coturnix coturnix japonica) irrespective of sex. The intestine was collected from 12 (twelve) birds each at end of 7th, 14th, 21st and 42nd day of age. The maximum thickness values of tunica mucosa and tunica serosa were recorded in duodenum while tunica muscularis including three layers was thicker in ileum at 42nd day of age. The thickness of tunica mucosa was increased from proximal to distal parts of caecum, however, tunica submucosa and tunica muscularis were thicker in middle part of caecum as compared with other parts of caecum at 42nd day of age. The thickness of tunica mucosa was found to be highest in colo-rectum at 42nd day of age in Japanese quail.