Fish aquaculture (1)

Question 1

Aquaculture

Answer 1

The farming of aquatic organisms including fish, mollusks, crustaceans and aquatic plants with some sort of intervention in the rearing process to enhance production

OR : The controlled raising of aquatic plants and animals in a confined environment

Question 2

Fishbowl requires

Answer 2

Heater – Filter– Air pump – Substrate at ground

Question 3

Large fish size requires … space

Answer 3

small area

Question 4

What will happen if I overfeed the fish?

Answer 4

it will increase ammonia level which will decomposition the organic matter especially protein in aerobic condition which will decreasing O2 level and increasing ammonia causing fish death

Question 5

Fish Breeding history in china

Answer 5

3500 BC

3000 to 5000 BC → carp culture practiced

Question 6

Fish Breeding history in egypt

Answer 6

2500 BC

Stonework on an Egyptian tomb shows tilapia culture in ponds

Question 7

China production

Answer 7

49.244 million to or 61.5 %

Question 8

Growing Early of 1950s

Answer 8

< Million tons

Question 9

Growing By 2016

Answer 9

80 Million tones

Question 10

From Early of 1950s to 2016
Estimated annual growth rate …

Answer 10

> 10%

Question 11

Fish production in world from Fishers

Answer 11

52%

Question 12

Fish production in world from Aquaculture

Answer 12

48%

Question 13

And By 2030 it’s supposed that aquaculture production will be …

Answer 13

more than fishers

Question 14

Egypt ranking over world :
3rd

Answer 14

Nile tilapia production after China and Indonesia (After 2016)

Question 15

Egypt ranking over world :
2nd

Answer 15

Nile tilapia production after China (before 2016)

Question 16

Egypt ranking over world :
1st (Top producer)

Answer 16

Mullets

Question 17

In North Africa and the near east , Egypt is …

Answer 17

by far the dominant producing country 99% of the total for the region

Question 18

75 – 80% of Fish production from aquaculture is …

Answer 18

Nile tilapia

Question 19

According to GAFRD statistics (2022) the total fish production In Egypt

Answer 19

Total → 2.2 million tons
Aquaculture → 1.8 million tons

Question 20

total fish production In Egypt in 2010

Answer 20

925 thousand tones

Question 21

total fish production In Egypt 2022

Answer 21

2.2 million tons

Question 22

total fish production In Egypt 2030

Answer 22

> 3 million tons

Question 23

Origin of Bolti

Answer 23

Africa (Native fish for Egypt)

Question 24

What is the most suitable feedstuff for fish ?

Answer 24

Soya bean and corn

Question 25

Why I can’t use high protein content meals such as blood meal or feather meal ?

Answer 25

Because it’s not digestible for fish