Share
دراسة نسجية مقارنة للامعاء بين طائر الحمام الضاحك وطائر الرفراف == Comparative Histological Study of Intestine Between Laughing Dove And Kingfisher
Author name:
علي نديم جواد الشباني
Supervisor name:
عدنان وحيد البديري
General topic:
Biology
Specific topic:
Zoology
Degree:
Master
University:
University of Al-Qadisiyah - Faculty Of Education - Department Of Biology
Language:
Arabic
University location:
Qadisiyah
First pages:
24T2981 - p.pdf
Abstract:
هما طائر الحمام الضاحك او فاختة النخيل Laughing dove من الطيور اكلات الحبوب وطائر الرفراف Kingfisher من الطيور اكلات اللحوم اعتمادا على طبيعة الغذاء. تضمنت الدراسة فحص مظهري ونسجي للامعاء لكلا النوعين في ثلاثين طائرا بالغا تتراوح اوزانهم بين 96.6 ± 0.87 | The study was designed for the purpose of identifying the tissues structure in the intestines of two Iraqi wild birds, Laughing dove, granivores birds and Kingfisher of birds carnivores birds depending on the nature of the food. The study included morphological and histological of intestines of both types in thirty adult birds their weights ranging between 96.6 ± 0.87 grams in the laughing and 101.8 ± 0.49 grams of Kingfisher. These birds were obtained by caught from different areas in AL - Qadisiya province regardless of their sex and then divided into two groups, every group included fifteen birds represent the order of studied birds. Five birds for the purpose of studying the morphological structure and another ten for the purpose of examining the histological structure, from each group. Birds were Seduced and opened by the abdominal area carefully. The intestines of the birds were visually described, both the small and the large intestine. Both birds intestines were separated from their bodies.Then, the weights of birds were accounted. After that, the ratio of birds intestines was recorded according to birds bodies. The results of morphological structure have showed that there are similarities in the parts and position of intestines in both studied birds.Also, it has been showed that the ratio of weight of both small and large intestines to the body was higher in kingfisher bird 2.23% and 0.42% compared with that ratio in laughing dove 1.94% and 0.52%. The intestine of laughing dove was longer than that of kingfisher.The duodenum forms single loop that encircles pancreas in both birds. There is no diverticuli vitelini that separates jejunum and ileum. It has been found that there were couple of cecaea in laughing dove bird and not found in white breasted kingfisher. The results of histological study has showed that the wall of intestine in both birds consists of four main layer different in their thickness which are mucosa layer, submucosa layer, muscularis layer and serosa layer.The mucosa layer consists of simple epithelium, lamina propria and muscularis mucosae layer.The three parts of intestine duodenum, jejunum, ileum have similarity in their histological structure in that the mucosa layer modified into a lot of villi which were longer and thicker and contain more branches in its base parts in kingfisher compared with that of laughing dove birds which was shorter and thinner, The villi were covered with a lot of columnar cells and brush border that have goblet cells which their number increase toward the of digestive canal. It has been noted that there was differences in layer thickness that form intestine wall.The mucosa layer was thinner compared with other layer. The villi of ceacae were short and flat, the villi of rectum were short in both birds.The cloaca villi were longer and clearer of laughing dove that of white breasted kingfisher. It has been concluded that the difference of food type that the birds have can have clear effect in both morphological and histological structure of intestine ; namely, the thickness of layers that forms their walls.
