Shiny, K S; Dr. Anandan, R(Cochin University of Science and Technology, February , 2007)
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Abstract:
The present study indicate that prior administration of
taurine is effective in minimizing all the deleterious effects induced by isoproterenol,
thereby justifying its use as a potent cytoprotective agent. The overall cardioprotective
effect of taurine is probably related to its antioxidant property evidenced by its ability to
reduce lipid peroxidation and to maintain the activities of free radical enzymes and nonenzymatic
antioxidants, its membrane stabilizing action and to its hypolipidemic property.
Description:
Dept.of Marine Biology,Microbiology and Biochemistry,Cochin University of Science and Technology
Johny T, Varghese; Dr.Madhusoodana,Kurup B(Cochin University of Science and Technology, April , 2007)
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Abstract:
Controlling the inorganic nitrogen by manipulating carbon /
nitrogen ratio is a method gaining importance in aquaculture
systems. Nitrogen control is induced by feeding bacteria with
carbohydrates and through the subsequent uptake of nitrogen from
the water for the synthesis of microbial proteins. The relationship
between addition of carbohydrates, reduction of ammonium and the
production of microbial protein depends on the microbial conversion
coefficient. The carbon / nitrogen ratio in the microbial biomass is
related to the carbon contents of the added material. The addition of
carbonaceous substrate was found to reduce inorganic nitrogen in
shrimp culture ponds and the resultant microbial proteins are taken
up by shrimps. Thus, part of the feed protein is replaced and feeding
costs are reduced in culture systems.The use of various locally available substrates for periphyton
based aquaculture practices increases production and profitability .However, these techniques for extensive shrimp farming have not so far been
evaluated. Moreover, an evaluation of artificial substrates together
with carbohydrate source based farming system in reducing inorganic
nitrogen production in culture systems has not yet been carried-out.
Furthermore, variations in water and soil quality, periphyton
production and shrimp production of the whole system have also not
been determined so-far.This thesis starts with a general introduction ,
a brief review of the most relevant literature, results of various
experiments and concludes with a summary (Chapter — 9). The
chapters are organised conforming to the objectives of the present
study. The major objectives of this thesis are, to improve the
sustainability of shrimp farming by carbohydrate addition and
periphyton substrate based shrimp production and to improve the
nutrient utilisation in aquaculture systems.
Description:
School of
Industrial Fisheries, Cochin University of Science and Technology
Suryakumari, S; Dr.Muraleedharan Nair, S(Cochin University of Science and Technology, August , 2009)
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Abstract:
The present study which is the first of its kind in this region is an
attempt to generate adequate information on the relative abundances, the
seasonal and spatial variations as well as on the source and fate of organic
compounds found associated with the dissolved, particulate and
sedimentary compartments of Chalakudy river system. The study aimed at
investigating variations, the relative proportion of dissolved, particulate and
sedimentary fractions of these materials as well as the pollution extent so as
to be able to comment on the present condition of this river-estuarine
system. This thesis focuses attention on the role of biogeoorganics in modifying the ecological and environmental condition of the dissolved,
particuIate and sediment compartments with their minute variability
subjected to various physical, chemical and biogeochemical processes. A
scheme of study encompassing all these objectives provides the frame work
for the present investigation.
Description:
Department of Chemical
Oceanography,Cochin University of Science
and Technology