1. Ministry of Higher Education and Scientific Research
University of Al-Qadissiyia
Collage of Veterinary Medicine
Practical Poultry Diseases
Forth Stage
Infectious Laryngotracheitis (ILT)
Assist. Lecturer
Abbas Hadi Jasim Al-Mossawi

2. Infectious Laryngotracheitis ILT or LT

3. Conjunctivitis, excessive lacrymation, and swelling of sinuses.

4. conjunctivitis and nasal discharge

5. conjunctivitis and open-mouth during breathing

6. open-mouth breathing and other severe respiratory signs

7. Gasping (extending head and neck during breathing )

8. expectoration of bloody mucus

9. Hemorrhages in the trachea (bloody exudates in the tracheal lumen)

10. Blood in Trachea

11. hemorrhagic exudate in the tracheal lumen

12. Diphtheritic changes along the entire length of trachea

13. Diphtheritic changes in the trachea and focal areas of hemorrhages in the tracheal wall and larynx

14. Diphtheritic changes with hemorrhages in the trachea

15. plugs of caseous exudates occluding the upper trachea

16. Pocks on CAM

17. Pocks on CAM

18. Opaque plaques on (CAM).