1. VIRAL DISEASES 2. BACTERIAL DISEASES  3. MYCOPLASMAL DISEASES 4. DISEASES CAUSED BY RICKETTSIAE 5. CHLAMYDIAL DISEASES 6. PATHOLOGY OF DISEASES CAUSED BY FUNGI 7. PARASITIC DISEASES 8. DISEASES CAUSED BY INSECTS AND THEIR LARVAE 9. NUTRITIONAL DISEASES 10. DISTURBANCES IN MINERAL METABOLISM 11. NUTRITIONAL DISEASES IN POULTRY 12. VIRAL DISEASES 13. BACTERIAL DISEASES 14. MYCOPLASMAL AND CHLAMYDIAL DISEASES 15. FUNGAL DISEASES 16. MYCOTOXICOSIS 17. PARASITIC DISEASES 18. DISEASES CAUSED BY ECTOPARASITES 19. METABOLIC DISEASES 20. VICES AND MISCELLANEOUS DISEASES 21. INFLAMMATORY REACTION IN CHICKEN 22. COMMON PATHGOLOGIAL CONDITIONS SEEN IN WILD AND ZOO ANIMALS AND BIRDS