Comparative Physiological   and  Anatomical  and  Histological study of  parts  of  Gastroitestinal  Tract  Between Chicken (Gallus gallus) , Geese (Anserini domestica) and Racing Pigeon (Columba livia domestica)

J. Al-yasery, Ahmed

	Comparative Physiological and Anatomical and Histological study of parts of Gastroitestinal Tract Between Chicken (Gallus gallus) , Geese (Anserini domestica) and Racing Pigeon (Columba livia domestica)
Jornal of Al-Muthanna for Agricultural Sciences
Article 1, Volume 5, Issue 1, 2017, Pages 91-101
Author
Ahmed J. Al-yasery
Abstract
This study was carried out in the laboratories of Agriculture college, Al-Muthanna University to investigate the comparative anatomical and histological structures of gastrointestinal tract in three species of avian (local poultry, local Gees and Pigeon), A18 birds was used, in which they were divided into 6 birds for each group. The anatomical results in poultry, geese and pigeon revealed that they possesses swallowing crop numerous mucous glands. In pigeon, swallowed crop was connected with muscular part of esophagus (10-15cm) length to form crop and proventriculus, which is a thick swallowing wall of conical shape. The results showed that poultry revealed significant superiorities at (P≤0.05) over geese and pigeon in anatomical dimensions of crop and gizzard, while poultry and pigeon revealed significant superiorities at (P≤0.05) over geese in proventriculus weight, length and thickness, the poultry and geese revealed a significant superiority over pigeon, while in width, the poultry revealed significant superiority on geese and pigeon
Keywords
This study was carried out in the laboratories of Agriculture college; Muthanna University to investigate the comparative anatomical and histological structures of gastrointestinal tract in three species of avian; local Gees and Pigeon

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