Unknown
In:
http://aquaticcommons.org/id/eprint/15957
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12051
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2015-01-16 09:42:35
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15957
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Indian Fisheries Association
Publication Date:
2021-07-11
Description:
A semi-arid environment is a major constraint for production of carp seed through hypophysation. At a water temperature above 31 degree C fishes often fail to respond to induced breeding or produce partial or full eggs with fairly less fertilization, leading to their mortality during embryonic development. Field trials with Labee rohita and Cyprinus carpio communis prove that hypophysation followed by stripping and hatching in a water medium with reduced temperature (below 31 degree C) through controlled use of ice-water and water showers can result in 50-60% fertilization of eggs and 50-72% hatching for L. rohita, and 40-90% fertilization and 49-77% hatching for C. carpio communis. Simultaneous breeding experiments of the species in normal water temperature (〉31 degree C) showed negative results.
Keywords:
Aquaculture
;
arid environments
;
induced breeding
;
aquaculture techniques
;
temperature effects
;
Labeo rohita
;
Cyprinus carpio communis
;
freshwater
;
India
Repository Name:
AquaDocs
Type:
article
Format:
application/pdf
Format:
application/pdf
Format:
89-96
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