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Culture and nutritional enrichment of the rotifer brachionus rotundiformis (Tschugunoff) for the rearing of marine Fin fish and shrimp larvae (TH 127)

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Relation http://eprints.cmfri.org.in/7223/
 
Title Culture and nutritional enrichment of
the rotifer brachionus rotundiformis
(Tschugunoff) for the rearing of marine
Fin fish and shrimp larvae (TH 127)
 
Creator Gopakumar, S D
 
Subject Fish Nutrition
Rotifer
Aquaculture
Theses
 
Description The present study evaluated the relative efficacy of selected micro
algae and yeast for the mass culture of B rotundiforrnis and also to optimize
the environmental factors like pH, salinity, and photoperiod. Fatty acid profiles
of enriched rotifers were analysed and the enriched rotifers were used for the
production of A sebae and P monodon juveniles by replacing Artemia nauplii.
The efficacy of micro algae like Nannochloropsis salina, Chlorella
marina, Isochrysis galbana and Baker's yeast were evaluated at different
concentrations as feed for mass production of rotifers. Experimental duration
was six days for each experiment and at the end of the experiment samples
were taken and counted under microscope and the growth rate of rotifers was
calculated. The instantaneous growth rate (K), per day growth and doubling
time of were also calculated.
The results of the experiments show that Nannochloropsis salina and
Isochrysis galbana are the best feeds for mass production of B. rotundiforrnis.
The instantaneous growth for rotifers fed with N.salina is higher (O.308±O.004)
compared with other feeds. The per day growth was highest in rotifers fed I.
galbana (40.18±1 .97) and doubling time was reduced to 2.25 days when N.
salina was fed to rotifers.
 
Date 2004
 
Type Thesis
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/7223/1/TH-127.pdf
Gopakumar, S D (2004) Culture and nutritional enrichment of the rotifer brachionus rotundiformis (Tschugunoff) for the rearing of marine Fin fish and shrimp larvae (TH 127). ["eprint_fieldopt_thesis_type_phd" not defined] thesis, Cochin University of Science and Technology, Cochin.