Record Details

Broodstock development and spawning in Penaeus indicus

CMFRI Repository

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Relation http://eprints.cmfri.org.in/4322/
 
Title Broodstock development and spawning in Penaeus indicus
 
Creator Maheswarudu, G
Pillai, N N
Nair, K R Manmadhan
 
Subject Induced Breeding
Aquaculture
 
Description Among cultivable native species, Penaeus indicus occupies an
important position due to its tolerance to wide range of salinity, fast growtK
compatibility in high density culture, wide distribution and demand in export
market. P. indicus broodstock can be developed using adults collected
from the wild or from grow out ponds or by reusing healthy females
after spawning in the hatchery. The size of prawn used for broodstock
development should preferably be above 145 mmT.L. (20 g) for females
and 140 mm T.L. (17 g)for males. Pens, cages, tanks with or without flow through system, recirculation system etc. are in vogue for broodstock development.
1001 tanks with in situ biological filter is used for the brood stock
development in CMFRI. Stocking density of prawns per cubic meter (sex
ratio I : Ij was found ideal. Three tanks of the above size can meet the
broodstock requirements of a hatchery of 18 million capacity. Unilateral
eyestalk ablation of females proved to be effective. Electrocautery apparatus
was usedfor this purpose. Experiments also revealed that unablated
P. indicus, can also be induced to mature and spawn by environmental
and feed manipulation. Unablated P. indicus maintained in recirculation
system and fed with intertidal oligochaetes, clam and squid meat attained
maturity and spawned repeatedly over a prolonged period. Maintaining
the pH of water between 8-8.2 and controlling the light intensity in
broodstock tanks found to fasten maturation.
 
Publisher CMFRI; Kochi
 
Contributor Pillai, V N
Menon, N G
 
Date 2000
 
Type Book Section
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/4322/1/47.pdf
Maheswarudu, G and Pillai, N N and Nair, K R Manmadhan (2000) Broodstock development and spawning in Penaeus indicus. In: Marine Fisheries Research and Management. CMFRI; Kochi, Kochi, pp. 714-726.