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Aflatoxicosis and its amelioration in black tiger shrimp, Penaeus monodon Fabricius

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Relation http://eprints.cmfri.org.in/7560/
 
Title Aflatoxicosis and its amelioration
in black tiger shrimp,
Penaeus monodon Fabricius
 
Creator Gopinath, Radhika
 
Subject Theses
Fish Toxicology
Algal Blooms
Prawn and Prawn fisheries
 
Description Penaeus monodon is the most widely fanned shrimp in India and
elsewhere. The present study was undertaken to elucidate the nutritional and
pathological changes associated with aflatoxin B I toxicity in Penaeus
monodon and to detennine the efficacy of vitamins E and K, and Amrita
Bindu, a herbal mixture in ameliorating the toxicity of AFB1•
A survey conducted to detect aflatoxin contamination in shrimp and
fish feeds used in fanns located in Ernakulam District, Kerala, India,
revealed that feeds and feed ingredients obtained freshly from farm and
stored under proper conditions contain only safe levels of AFBI « 20 ppb),
while those stored for six months had AFBI levels in the range of 150 - 250
ppb.
Three sets of experiments were conducted in P. monodon post larvae
to determine the effect of AFBI on growth and feed perfonnances.
~ The first experiment was conducted in post larvae of size 0.06 ± 0.013
g to determine the effects of selected levels of AFBI viz., 0 ppb, 20 ppb, 50
ppb, 2500 ppb and 5000 ppb on weight gain, survival and histological
architecture. This trial was conducted to determine the doses of AFBI to be
taken for further study. The results of the experiment showed that 50 ppb to
2500 ppb AFBI could produce chronic aflatoxicosis in P. monodon.
~ The second experiment was conducted on postlarvae of size 0.56 ±
0.001 g to determine the effects of different doses of AFBI viz., 0 ppb, 50
ppb, 250 ppb, 500 ppb, 750 ppb, 1000 ppb and 2000 ppb on weight gain,
specific growth rate, apparent feed conversion and survival rate. The trial
revealed highly significant (P
 
Date 2006
 
Type Thesis
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/7560/1/TH-143.pdf
Gopinath, Radhika (2006) Aflatoxicosis and its amelioration in black tiger shrimp, Penaeus monodon Fabricius. ["eprint_fieldopt_thesis_type_phd" not defined] thesis, Cochin University of Science and Technology, Cochin.