Different type of fish culture ।। Monoculture Vs polyculture ।।মাছ চাষের ধরন। Abeed Lateef

There are different types of fish culture found in our country. In premitive type was fertilizer based fish culture and in the next time it turn in feed and fertilizer based one. But recently it become feed based fish culture. Firstly, in the first one type the percentage of return was high but required time was more. But in the second one return was high whether the time was less. The ultimate result in the third one; return was so high but the facility of natural feed was least. Depending the third one, monoculture practice was developed. In monoculture, -fishes grow faster; -fishes are more capable to face the more awkward sotuation, -having more immune capacity. But different types of diseases starts.#Abeed Lateef