Record Details

Evaluation of the intertidal oligochaete Pontodrilus bermudensis beddard as dietary supplement for stimulation of reproduction in Penaeus semisulcatus de Haan (TH 102)

CMFRI Repository

View Archive Info
 
 
Field Value
 
Relation http://eprints.cmfri.org.in/7176/
 
Title Evaluation of the intertidal oligochaete Pontodrilus bermudensis beddard as dietary supplement for stimulation of reproduction in Penaeus semisulcatus de Haan (TH 102)
 
Creator Vineetha, Aravind
 
Subject Aquaculture
Theses
Farming/Culture
Prawn and Prawn fisheries
Aquafeed
 
Description The major impediment to the culture of penaeid shrimp in captivity is the
inability to obtain ovarian maturation and spawning. The present thesis
evaluates the reproductive performance of unablated Penaeus
semisu/catus (green tiger shrimp), fed the intertidal oligochaete
Pontodrilus bermudensis as a dietary supplement. The reproductive
performance of the test group of P. semisulcatus fed P. bermudensis as
dietary supplement was compared to that of the control group, fed squid
and clam alone. Significant improvement was observed in the reproductive
performance of test group compared to that of the control group.
Maximum maturation response was observed when the worm component
formed about 9% of total feed . The biochemical composition and fatty acid
profile of P. bermudensis was analysed. Among the three growth stages
comprising the population of P. bermudensis, the nonclitellates were found
to have the most suitable biochemical composition for feeding the
broodstock. The fatty acid profile of P. bermudensis revealed a
preponderance of n6 fatty acids especially C20:4 n6, suggesting a
possible role of prostaglandins in shrimp maturation and spawning.
Experiments were conducted to develop a viable long-term method to
culture the oligochaete in land based culture units. Of the three culture
systems tried, P. bermudensis was found to grow well in wooden boxes
with seashore sand as media with cowdung and seaweed or cow dung
and leaf litter as organic amendments. A multi unit vermiculture system
with periodic harvesting and loading of organic matter is proposed as part
of shrimp maturation systems with minimal investment to facilitate
continuous supply of worms.
 
Date 2001
 
Type Thesis
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/7176/1/TH-102_Vin.pdf
Vineetha, Aravind (2001) Evaluation of the intertidal oligochaete Pontodrilus bermudensis beddard as dietary supplement for stimulation of reproduction in Penaeus semisulcatus de Haan (TH 102). ["eprint_fieldopt_thesis_type_phd" not defined] thesis, Central Institute of Fisheries Education, Versova.