Para Bronchial System of Kadaknath Fowl - Corrosion Cast

Abstract

Background: Corrosion cast is an efficient technique used to demonstrate the anatomical structures which are difficult to observe during dissection. Air sacs are unique structures that are present in the avian respiratory system not in other air-breathing vertebrates. Air sacs are very delicate structures to dissect because they are made up of fine squamous cell membranes. They are hard to display unaccompanied by corrosion cast. Perception of the air sac anatomy was unable to succeed in two-dimensional diagrams. Methods: In this study, adult Kadaknath fowl were collected to demonstrate its air sacs by using 70% rubber latex solution through the corrosion cast method. The shape and size of four paired and one unpaired air sac was observed. The relationship between air sacs, lungs and pneumatic bones was also recorded. Air sacs cast were tinged, laminated and displayed in Museum. Result: Present study will be helpful to understand the anatomical structure of the air sacs of Kadaknath fowl.