FT Vol.9(1)

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A New Observation On Large Scale Disintegration Of Eggs Of Indian Major Carps During Development
(Society of Fisheries Technologists (India) Cochin, 1972) Biswas, K. P.; Saha, G. N.
Mysterious disappearance of carp eggs from the happa in large scale during development caused considerable loss of spawn raised by induced breeding technique (Chaudhuri and Alikunhi, 1957). Panicker et a! (1969) have observed such large scale destruction of fertilised eggs by common carp, Cyprinus carpio, rupturing the egg shells by sucking from outside the happa containing eggs. But mass scale disintegration of eggs in happas within a few hours has been reported by other workers in ponds devoid of common carps indicating that some other factors are also responsible for untimely rupture of egg shells leading to disintegration of eggs in a short time. Fertilisation of eggs is accompanied by hydration of oocytes and movement of ions across the egg membrane from the surrounding media.