What should be the ratio of different fish breeds in a pond?
Answers
ANSWER :
The ratio of different fish breeds in a fish pond are as follows :
•Katla 20%, Rohu 30%, Mrigal 10%, Common carp 20%, Grass carp 10% and Silver carp 10%
OR
•Katla 25%, Rohu 35%, Mrigal 20% and Common carp 20%.
In Punjab, Fingerlings (seed fish) can be obtained from College of Fishery, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana or Government hatcheries.
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Explanation:
Answer:
Extensive fish farming system
The extensive fish farming system is the least managed form of fish farming, in which little care is taken. This system involves large ponds measuring 1 to 5 ha in area with stocking density limited to only less than 5000 fishes/ha. No supplemental feeding or fertilisation is provided. Fish depends only on natural foods. Yield is poor (500 to 2 ton/ha), and survival is low. The labour and investment costs are low, and this system results in minimum income.