Course Contents

THEORY 1.Fish nutrition: Digestive system; Stomach less fishes; Stomach fishes; Digestion and absorption; Food; Plant origin; Animal origin; Feeding; Fresh food; Dry concentrates; Pelleted food; 2.Transportation: Blood; Blood cells (Erythrocytes, leukocytes, latelets and plasma); Circulation; Arterial system; Venous system; Capillaries; Transport of food material; 3. Respiration: Gills; Lungs; Skin; Swimbladder; Homeostasis; 4. Excretion:Kidneys; Hypo-osmotic urine;Hyper-osmotic urine; osmoregulation; 5.Reproduction: Gonads; Testes and ovaries; Maturation; Reproductive cells (egg and sperm); Artificial fertilization of sex cells; 6. Breeding: Natural (seasonal); Artificial; Hormonal induced breeding; Temperature and photoperiod; control induced breeding. 7. Growth: Extensive culture (due to the consumption of natural food); Semi-intensive culture (due to natural & artificial food); Intensive culture (due to only dry concentrates). 8. Fish health: Water quality; Hygiene of fish culture facilities; Hygiene of equipments used in fish culture; 9. Diseases and their control: Viral; Bacterial; Fungal; Parasitic; Protozoan; Helminths (trematodes, cestodes, nematodes, acanthocephalons); Crustaceans (cladocera); Annelids (leeches); Arthropods (water ticks, water flea, water mites) 10. Fish migration: To nursery ground; To maturation grounds; Freshwater to marine water; Marine water to freshwater; 11. Fish behaviour: Learning and memory; Light response for maturation; Courtship behaviour; Aquarium fish behaviour PRACTICALS 1. Study of gut contents, 2. Study of feeding modification and adaptation in fish, 3. Study of respiratory adaptation in fish, 4. Study of blood cells and their counts in normal and diseased fish, 5. Study of water quality parameters (DO, NH3, hardness, alkalinity, turbidity, transparency, temperature, salinity), 6. Study of various forms of swimbladder as hydrostatic organ, 7. Study fecundity of various fish species, 8. Study the effects of reproductive hormone (GnRH) on fish maturation, Diagnosis of bacterial infection in infected fish, 9. Study of fish parasites, 10. Visit to various fish seed hatcheries during breeding seasons. BOOKS RECOMMENDED 1. Kestin Farmed Fish Quality (2001) Multiline Books 2. Ruth Freshwater Aquaculture (2000) Multiline Books 3. Saksena Ichthyology: Recent research advances (1999) Multiline Books 4. Woo Fish Diseases and Disorder: Protozoan and Metazoan Infections (1995) Pak Book Corp. 5. Brenabe Aquaculture, Vol. I &II (1992) Fishing News Books Ltd, England 6. Maseke Fish Aquaculture (1987) Pergamon Press, Oxford 7. M. Huet. Text Book of Fish Culture: Breeding and Cultivation (1986).Fishing News Books Ltd, England 8. Hoars Fish Physiology 9. Hoars Fish Reproduction 10. Matty Fish Endocrinology (1985) 11. Gorbman Comparative Endocrinology (1983)

Course Learning Outcomes

The subject provides information to obtain better growth by following physiological aspects during extensive or semi-intensive culture. It also emphasizes thoroughly in breeding of most culturable freshwater fished by manipulating reproductive and endocrinological aspects during natural season as well as off seasons.