Home
Class 11
BIOLOGY
How the freshwater prawn ''Macrobra-chiu...

How the freshwater prawn ''Macrobra-chium rosenbergii'' is cultured ?

Text Solution

Verified by Experts

Macrobrachium rosenbergii is commonly seen in rivers, fields and low-saline esturaries. The prawn collected from ponds, river, and paddy fields are transferred to the tanks which are aerated. For fertilization, one pair of prawn are kept in a separate tank. After mating, the eggs are laid. Spawning tanks of different sizes should be prepared with proper aeration. Temperature `(240C -300C)` and ph (7-8) should be maintained in the hatching tank. The eggs hatch into first and second stage larva. Artificial feed is supplied. Young ones of 5 cm length (60 days old) can be reared in fresh or slightly brackish water ponds and rice fields. Harvesting of prawns can be done twice in a year.
Promotional Banner

Topper's Solved these Questions

  • TRENDS IN ECONOMIC ZOOLOGY

    PREMIERS PUBLISHERS|Exercise SOLUTION TO TEXTUAL QUESTIONS |1 Videos

  • TRENDS IN ECONOMIC ZOOLOGY

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (Choose the correct answer)|47 Videos

  • TRANSPORTATION IN PLANT

    PREMIERS PUBLISHERS|Exercise Solution to activity |4 Videos

  • VEGETATIVE MORPHOLOGY

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS( Answer in detail)|1 Videos

Similar Questions

Explore conceptually related problems

Assertion (A) : Prawn is an aquatic crustacean Reason (R) : Macrobrachium rosenbergii is used in fresh water culture.

Marine water prawn culture and Freshwater prawn culture. {: ( "Marine water prawn culture", "Freshwater prawn culture"),( "The rearing of marine penaied prawn is called marine prawn culture or shrimp culture.", "The rearing of freshwater prawn is called fresh water prawn culture."):}

How is aeration done in culture medium?

How are prawns caught commonly?

The number of bacteria in a certain culture doubles every hour. If there were 30 bacteria present in the culture originally, how many bacteria will be present at the end of 2^(nd) hour, 4^(th) hour and n^(th) hour?

The number of bacteria in a certain culture doubles every hour. If there were 30 bacteria present in the culture originally , how many bacteria will be present at the end of 2^(nd) hour , 4^(th) hour and n^(th) hour ?

The number of bacteria in a certain culture doubles every hour. If there were 30 bacteria present in the culture originally, how many bacteria will be present at the end of 2^("nd") hour, 4^("th") hour and n^("th") hour ?

How will you avoid the growing of microbes in nutrient medium during culture process? What are the techniques used to remove the microbes?