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悋惘忰 悋惘忰 悋 惡愕盒潮
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Nutritional Requirements of Fresh water and Marine Fishes
and its Environmental Impacts with special reference
to Digestion and Absorption
For Fish categories.
Hafez A. Mabrouk
Lecturer of Fish Nutrition
NIOF
It has been said
 Give a man a fish,
and he will have food for a day,
teach him to raise fish, and he will
have food for the rest of his life
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Physiological condition of Fish
Genetical factors Environmental factors Nutritional factors
Digestible Energy (DE)
(75)
Faces excretion (FE)
(25)
Intake Energy (IE)
(100) Heat loses
Excretory loses
Metabolizable Energy ME)
(67)
Gill Excretion (ZE)
Urine Excretion (UE)
(8)
Heat increment (HiE)
Waste formation and Excretion (HwE)
Product formation (HrE)
Digestion and Absroption (HdE)
(10)
Net Energy (NE)
(57)
Maintenance (HEm)
Basal Metabolism (HoE)
Voluntary Activity (H,C)
Thermal Regulation (HCE)
(23)
Recovered Energy (RE)
Growth
Fat
Reproduction
(34)
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt
Table (2) - Waste outputs and effluent quality from fish Production operation.
WASTE OUTPUT
(Total Load Estimate)
Solid (kg)
Nitrogen
(kg)
Phosphorus
(kg)
Feed Wastage (2.2 %)
*
1201
80.69
12.008
Solid
10610
356.49
212.194
Dissolved
-
1764.60
143.231
TOTAL
11811
2201.79
367.433
-
per tonne fish produced
164.3
30.64
5.113
- % of dry matter fed
21.8 %
60.4 %
67.7 %
Average concentration (mg/L)
in effleunt (13469 mill. L)
during 410 days
0.877
0.163
0.027
* Actual amount of feed fed  Theoretical amount of feed required
Article Review Presentation, Fish Nutrition .ppt
Article Review Presentation, Fish Nutrition .ppt

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Article Review Presentation, Fish Nutrition .ppt

  • 1. 悋惘忰 悋惘忰 悋 惡愕盒潮
  • 4. Nutritional Requirements of Fresh water and Marine Fishes and its Environmental Impacts with special reference to Digestion and Absorption For Fish categories. Hafez A. Mabrouk Lecturer of Fish Nutrition NIOF
  • 5. It has been said Give a man a fish, and he will have food for a day, teach him to raise fish, and he will have food for the rest of his life
  • 16. Physiological condition of Fish Genetical factors Environmental factors Nutritional factors
  • 17. Digestible Energy (DE) (75) Faces excretion (FE) (25) Intake Energy (IE) (100) Heat loses Excretory loses Metabolizable Energy ME) (67) Gill Excretion (ZE) Urine Excretion (UE) (8) Heat increment (HiE) Waste formation and Excretion (HwE) Product formation (HrE) Digestion and Absroption (HdE) (10) Net Energy (NE) (57) Maintenance (HEm) Basal Metabolism (HoE) Voluntary Activity (H,C) Thermal Regulation (HCE) (23) Recovered Energy (RE) Growth Fat Reproduction (34)
  • 23. Table (2) - Waste outputs and effluent quality from fish Production operation. WASTE OUTPUT (Total Load Estimate) Solid (kg) Nitrogen (kg) Phosphorus (kg) Feed Wastage (2.2 %) * 1201 80.69 12.008 Solid 10610 356.49 212.194 Dissolved - 1764.60 143.231 TOTAL 11811 2201.79 367.433 - per tonne fish produced 164.3 30.64 5.113 - % of dry matter fed 21.8 % 60.4 % 67.7 % Average concentration (mg/L) in effleunt (13469 mill. L) during 410 days 0.877 0.163 0.027 * Actual amount of feed fed Theoretical amount of feed required