This document discusses fish diseases categorized into parasitic, nutritional, protozoan, helminth, crustacean, fungal, bacterial, and viral diseases. It provides detailed information on the causative agents, symptoms, and recommended treatments for various diseases that affect fish, such as ichthyophthiriasis, costiasis, whirling disease, gyrodactylus, saprolegniasis, furunculosis, tuberculosis, and infectious pancreatic necrosis. The document is authored by Dr. K. Rama Rao and appears to be a reference text on fish pathology and diseases.

1. Dr. K. Rama Rao
Department of Zoology

2. FISH DISEASES
Dr. K. Rama Rao

3. Fish Diseases
1.Parasitic: Protozoan, Helminthes,
Leeches, Crustaceans, Fungal,
Bacterial, Viral Diseases
2.Nutritional: Pin heads, Rickets,
Vitaminosis, Limphoid hepatic
degeneration
Dr. K. Rama Rao

4. A)Protozoan Diseases
1. Ichthyophthiriasis: Single cell
ectoparasites, White patches on body,
Itching, Rubbing on the surface.
Treatment: 1: 5000 Formaldihyde,
2% common salt, 2 ppm methalin
blue, for 1 week .
1.5-2.0 ppm malakhite green or 5-10
ppm acriflavin dip treatment.
Dr. K. Rama Rao

5. Protozoan Diseases
costiasis disease :
Ectoparasite, Flagella protozoan,
Lives on skin and fins, Red
patches on body, Brown color
gills, Low apatite and Acidic
water
Treatment: 3% Common salt sol.
1:2500 Formalin for 10 min.
Dr. K. Rama Rao

6. Protozoan Diseases
Whirling disease: Endo parasite,
Sporazoan (Mixosoma sininsis), Lives
in Nervous system, Loss of balance
and round wandering.
Treatment: Quick lime or Formalin
wash
Dr. K. Rama Rao

7. Protozoan Diseases
Knot Disease: Knots on the
Body, Ecoparasite, Mixobolus,
Sporozoans
Treatment: Quick lime or
Formalin wash Dr. K. Rama Rao

8. Protozoan Diseases
Trichodiniasis disease: Lives on Gills and Body,
Ciliate ectoparasite, wounds on body,
Respiratory problems
Treatment: 8ppm Cu So4 or 2% common salt
for 10 mint bath
Pond Cleaning with 0.7 ppm Cu So4 & Fe so4
Mixture 5:2 ratio
Dr. K. Rama Rao

9. Helminth Diseases: 3
1. Gyrodactylus: Platihelmenthis-
Trimatoda, Ectparasite, Livs on Gills and
Fins.
Body pale colour , smooth Scales, Slime
at gills and fins, finally dead.
Treatment: 5% Na Cl or 1: 5000 Formalin
sol. Dip for 5 mits
Dr. K. Rama Rao

10. Helminth Diseases
2. Dactylogyrus: Gill Flukes,
Platihelmenthis- Trimatoda, Ectparasite,
Lives on Gills and Fins.
Slime production on body, Pale color body,
Increasing Respiration, Gills swelling, Gill
destroy
Treatment: Na Cl sol 3-5 mint, 10 ppm
acriflavin or 2-4 ppm methyle blue or 0.25
ppm formalin sol for 2-3 days
Dr. K. Rama Rao

11. Helminth Diseases
3. Ligulosis: (Tapeworm)
Internal cistoda parasite, Swelling of
intestine, Pale color body
Treatment: 1: lakh Picric acid sol. bath
Dr. K. Rama Rao

12. CRUSTACIAN DISEASES
1. Argulosis
2. Lerniosis
3. Caligus
4. sinergacilosis
Dr. K. Rama Rao

13. CRUSTACIAN DISEASES
1.Argulosis
Fish lice, Ecto parasite, Sucking of
blood, Anemia, Red spots on body,
Gill damage
Treatment: 3-5% Na Cl or 250 ppm
formalin dip for 1 hour . 0.2-0.3 gr
Kmno4 mixing in the pond
Dr. K. Rama Rao

14. CRUSTACIAN DISEASES
Lerniosis: Anchor worm
Ecoparaste, Penitration in muscle, Red
patches on Body, Males not harmful, Spots on
body, attack bacteria and Fungus.
Treatment: 10-20 ppm Kmno4 bath for 2 hours
Dr. K. Rama Rao

15. CRUSTACIAN DISEASES
Caligus:
Ectoparaste, Fish lice, Red spots on body,
attach on Hooks with Fish Body
Treatment: 1: 1000 Glacial acitic Acid bath
for 5 mints.
Dr. K. Rama Rao

16. FUNGAL DISEASES
(Mycosis diseases)
1.Gill Rot
2.Saprolegniasis
Dr. K. Rama Rao

17. FUNGALDISEASES
(Mycosis diseases)
1. Gill Rot
BRANCHIOMYSIS FUNGI
Gill blood vassals blocked and dried, fall down
the dried parts, Blood vassals destroyed, Red
spots, Lack of Oxygen
Treatment: Adding of Quick Lime to ponds, 5
ppm KMno4 dip for 5- 10 mints.
Dr. K. Rama Rao

18. COMMON FUNGAL DISEASES OF FISH
Saprolegniasis:
Fungus of Saprolegnia parasitica
It is known as Dermetomycosis
More production of slime
Tumors on Body
Loss of vision
Treatment: 1:1000 KMno4 or
Malakhite green dip for 3 Seconds.
Dr. K. Rama Rao

19. BACTERIAL DISEASES
Dr. K. Rama Rao

20. Cotton Mouth Diseases:
Fexibacteria: filamentus
Cotton filament bacteria around the
mouth
Treatment:
Dissolved 10 ppm Chloramfinacol or
0.1-0.3 ppm Furanase Antibiotics
Dr. K. Rama Rao

21. Bacterial ulceration
Furunculosis disease:
Aeromonous salmonida bacteria
Blood, Puss and Boils on the body and with in the
body, Heavy infectin leads to mortality
Treatment:
Application of Lime
Sulphonimide antibiotics
1% Providon- Iodin solution for 3-4 days dip
Dr. K. Rama Rao

22. Caudal and Fins Erosion
Protius vagaris bacteria
Tilapia, Etroplus, Chonnas etc
White line on fins to identify this disease
Blood secretion on fins and caudal
Treatment:
0.5 % CuSo4 dip for 2 mits,
Niomysin, Oxytetracyclin through food to heel
internal woonds
Dr. K. Rama Rao

23. Tuberculosis disease:
Microbacterium
Slowly weaken, Folding fins, pale
colour, Destroy the endoskleton
Treatment:
Canamysin or Zentamysin 75gr /kg
food for 7-21 days
Dr. K. Rama Rao

24. Dropsy disease:
Psuomonous punctata bacteria
Yellow color liquid in the Body, Abdomen swelling
Protrusable scales
Liver, Duodenum swelling
Protrusable Eyes
Treatment: 5 ppm KMno4 bath for 2 mits.
Oxytetracycline, Sipromycine through food
Dr. K. Rama Rao

25. Enteritis disease:
Aeromonous punctatus bacteria
Carps and Grass carps
Red spots on abdomen
Abdomen widen
Red color at Anal area,
Round movement on surface water
Treatment: Sulphothayozole through food for 6 days
Dr. K. Rama Rao

26. A) :VIRAL DISEASES
1. Viral Hemaresic septicemia (VHS)
2. Infectious Pancreatic Necrosis (IPN)
3. Infectious Hematopoietic Hypodermal Necrosis
(IHHN)
4. Epizootic Ulcerative Syndrome
Dr. K. Rama Rao

27. Viral Hemaresic septicaemia
RNA Virus, Rain bow Trout Fishes
Anemia, Pale Gills, Loosen of Anus, Effect to Liver and
Kidneys
No Treatment, Remove the dead fishes from the pond
Viral Hemaresic septicaemia
Dr. K. Rama Rao

28. Infectious pancreatic necrosis (IPN)
RNA Virus, Effect to Embryonic Stages, Protrusable
Eyes, White solution store in Stomach and Intestine,
Liver, Gallbladder, Pancreas effect to necrosis
Dr. K. Rama Rao

29. INFECTIOUS HAEMATOPOIETIC HYPODERMAL DISEASE
(IHHN)
SEMBV (Systemic Ectodermal and Mesodermal Baculo
Virus)
1967 Canada in Trouts
Kidneys damage, Pale Gills, Red Fins, Black skin,
Stomach swelling
Dr. K. Rama Rao

30. Epizootic ulcerative syndrome
Effect on rabdovirus, Fish Cancer
Effect to Indian Major Carps
Hemarezic tumors on body, Gills and Fins
Effect to Kidneys and Liver , Respiration problems
Treatment: Quicklime adding to ponds
Chloromphinicol bath for 2 min or Erythromycine antibiotics
through food
Dr. K. Rama Rao

31. nutritional deficiency disease in fishes
Dr. K. Rama Rao

32. Pin heads disease
aLck of proper food in larval stages
Narrow body and Big heads
Dr. K. Rama Rao

33. Rickets disease
More quantity of coconut oil cake leads to Rickets
Dr. K. Rama Rao

34. Vitaminosis A disease
Imbalance of Vitamin A in Food
Caratomalecia (Blindness)
Dr. K. Rama Rao

35. Dr. K. Rama Rao