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5.2. Fish spawn rearing techniques – rearing ponds
Unit 5 - Fish seed rearing techniques
5.2. Fish spawn rearing techniques – rearing ponds
- Spawn stocked in nursery ponds normally attain a length of 20-25mm in 15 days with artificial feeding, giving survival rates ranging from less than 10 % to as high as 95-100%.
- If the fry is to attain better growth and survival, it should be netted out and released in rearing ponds.
- The rearing ponds are pre-prepared more or less on the lines of the nursery ponds.
- The rearing ponds form the second phase of carp culture and are used for growing fry to fingerlings by providing more space and food so that they reach the latter size as early as possible.
- The rearing period may vary between 2 and 3 months.
Last modified: Tuesday, 14 June 2011, 9:24 AM