This presentation summarizes pathological changes that can occur in the integumentary, respiratory, digestive, and excretory systems of fish. It focuses on changes in the integumentary system, including cuticular changes from protozoal infections, epidermal changes that reflect pathological processes in underlying tissues, and dermal and hypodermal changes like inflammatory lesions, ulceration, and parasitic lesions. Hyperplasia of the epidermis can occur due to various stimuli and low temperatures. The presentation was given by group A, consisting of 20 students with ID numbers.

1. Welcome To Our Presentation

2. SYSTEMATIC PATHOLOGY
INTEGUMENTARY SYSTEM
RESPIRATORY SYSTEM
DIGESTIVE SYSTEM
EXCRETORY SYSTEM

3. SYSTEMATIC PATHOLOGY
THE INTEGUMENTARY SYSTEM
In the normal environment the fish integument is subtly adapted for
its physiological requirements. Changes in skin are the most readily
observed clinical features of fish by lesions and color change.

4. INTEGUMENTARY SYSTEM
Cuticular change
Epidermal change
Dermal and hypodermal
change

5. CUTICULAR CHANGE
Protozoal infection
Mucus secretion from dermal layer
Fail to prevent colonization of the skin surface
Trichodina sp. , Thiecamoeba sp. , Saprolegnia sp.
overcome the basic cuticular defense
(MacMillan,1985,Roberts 1992)

6. EPIDERMAL CHANGE
Epidermis is avascular
Its changes reflect pathological process in tissue
Degeneration is found

7. INFLAMMATORY RESPONSE

10. HYPERPLASIA
Increase number of cell in tissue
Phenomenon in fish epidermis accompanied by spongiosis
Include chemical pollutants,hormonal stimuli, Flexibacter sp.
It is frequent at low temperature
Occurred if the fish are retained in salt water over spawning

12. DERMAL AND HYPODERMAL CHANGE
Dermal inflammatory lesions are associated with the acromonal
disease
Such lesion releases infectious material into water
ulceration
parasitic lesions

13. ULCERATION

14. PARASITIC LESIONS

15. THAT’S ALL ABOUT OUR TOPIC
GROUP-A
Id:
1403004, 1403005,
1403006,1403007,
1403008,1403009,
1403010, 1403011,
1403013, 1403014,
1403015, 1403016,
1403017, 1403018,
1403019,1403020

16. THANKS TO ALL