Publication Date:
2021-07-10
Description:
Common carp (Cyprinus carpio) eggs were incubated to study the efficiency of hatching in hapa and hatchery. During incubation the recorded temperature was 21-28 degree C and 20-31 degree C, dissolved oxygen 6-9 ppm. and 3-5 ppm., total alkalinity 180-250 ppm. and 28-62 ppm. respectively in the hatchery (model C.I.F.E. D-80) and hapa. CO sub(2) was totally absent in the hatchery, but recorded 3-10 ppm. in the hapa. The flow of water was maintained at 1.25 l/minute/jar in the hatchery. Under the above environmental conditions the eggs hatched in 42-51 hrs. in the hatchery and 61-81 hrs. in the hapa from egg to spawn thereby establishing the hatchery to be a better hatching system for carp eggs.
Keywords:
Aquaculture
;
hatcheries
;
environmental conditions
;
hatching
;
aquaculture systems
;
fish eggs
;
Cyprinus carpio
;
freshwater
;
India
Repository Name:
AquaDocs
Type:
article
Format:
application/pdf
Format:
application/pdf
Format:
1-5
