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Theses (PG)

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2006 - 2009122010 - 201111
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Subject: Aquaculture × End date: 2011 ×
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Now showing 1 - 9 of 23
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    ThesisItemOpen Access
    PHYSIOLOGICAL DISTURBANCES IN COMMON CARP (Cyprinus carpio) AS AN INDICATOR OF POLLUTION STRESS
    (KARNATAKA VETERINARY ANIMAL AND FISHERIES SCIENCE'SUNIVERSITY, BIDAR-585226, 2011-09) MUTTAPPA KHAVI; H.R.V.REDDY; A.T.TAMCHANDAR NAIK; K.S.RAMESH; MRIDULA RAJESH
    The use of insecticides is being increasing in the recent years to control the pest in which only 1% of the pesticide applied hits the target pest while, the remaining 99% of the pesticide drifts into the environment contaminating soil, water and biota. This poses a constant threat to the non-target organisms especially to fishes, because pesticides are known to alter their behavioral pattern, growth, and physiology. One of the early symptoms of acute pesticide poisoning is failure of respiratory metabolism, reduction in the food consumption, alteration in absorption efficiency, scope for growth and oxygen: nitrogen ratios of fishes. A static renewal bioassay was conducted to determine the acute toxicity (LC50) of commercial grade Organophosphate insecticide, Quinalphos (25% emulsified concentration) to common carp (Cyprinus carpio). The acute toxicity of Quinalphos to carp fingerlings exposed for 96 h was found to be 2.75ppm. For sublethal toxicity study, the fishes were exposed to two sublethal concentrations (1/10th of LC50 i.e 0.275ppm and 1/5th of LC50 i.e 0.55ppm) with lethal concentration (2.75ppm) for up to 48 hours. The carps were found to be under stress but mortality was insignificant in both sublethal and lethal concentrations. Considerable variation in respiratory rate was observed in both sublethal and lethal concentrations. 84 The effects of this pesticide on the physiological condition were remarkable. Food consumption rate, absorption efficiency, scope for growth and Oxygen: Nitrogen ratio of the fishes was affected when it was exposed to increasing concentrations of Quinalphos. The observed alteration in physiological condition may be a consequence of impaired oxidative metabolism and elevated physiological stress by the fish against quinalphos stress.
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    ThesisItemOpen Access
    VIABILITY OF WHITE SPOT SYNDROME VIRUS MONOCLONAL ANTIBODIES IN THE GUT OF SHRIMP FOR PROPHYLAXIS
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2010) OMKAR V. BYADGI, B.F.Sc.
    Aquaculture is the worldâ s fastest growing food-production sector, providing protein rich supplement to human beings. Global total production of fish, crustaceans and molluscs has continued to increase and reached 140 million tonnes in 2007. While capture production has stayed around 90 million tonnes since 2001, aquaculture production has continued to show strong growth, increasing at an average annual growth rate of 6.5% from 36.8 million tonnes in 2002 to 50.3 million tonnes in 2007 (FAO, 2009). The value of world aquaculture production was USD 87 billion in 2007 (FAO, 2009). Shrimp continues to be the most important commodity traded in value terms, accounting for 15.4% of the total value of internationally traded fish products in 2007 (FAO 2009). The worldâ s production of shrimp, captured and fanned, is approximately 6 million tonnes, about 60% of which is traded internationally. The worldâ s main shrimp producing country is China with 2.7 million mt, followed by Indonesia, India and Thailand
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    ThesisItemOpen Access
    DEMONSTRATION OF AGE OF ANTIBODY PRODUCTION IN INDIAN MAJOR CARP CATLA, (CATLA CATLA) BY MONOCLONAL ANTIBODY BASED HISTOCHEMISTRY
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2009) Divya Kumari. H.V
    Fish larvae hatch into a pathogenically hostile environment when their immunological capacity is still severely limited (Mulero et al., 2006).
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    ThesisItemOpen Access
    STUDIES ON GENETIC DIVERSITY IN DIFFERENT STOCKS OF GRASS CARP {CTENOPHARYNGODONIDELLVS} USING RANDOM AMPLIFIED POLYMORPHIC DNA (RAPD) MARKERS
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) SAMUEL MOSES, T.L.S., B.F.Sc.
    Aquaculture is one of the fastest growing food producing sectors in the world, with an average annual growth rate of around 8% since 1970 (FAO, 2009). World aquaculture production has shown a tremendous growth from less than 1 million tonnes per year in the early 195Oâ s to 52.5 million tonnes in 2008 which valued at US$98.4billion (FAO, 2010). Per capita supply of fish through aquaculture has also increased from just 0.7 kg in 1970 to 7.8 kg in 2006 (FAO, 2009). India is the second largest aquaculture producer in the world next to China. At present the aquaculture production by India is 3.4 million tonnes (FAO, 2010).
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    ThesisItemOpen Access
    STUDIES ON CAPTIVE BREEDING OF OLIVE BARB, PUNTIUS SARANA (HAMILTON)
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2009) NITYA NAIBEDYA BISWAL, li.F.Sc.
    Indian freshwater aquaculture has evolved itself from the stage of a domestic activity in the Eastern States of West Bengal and Orissa, to that of an industry, contributing to about one third of the total fish production of the country. The average national fish production levels from tanks and ponds have increased significantly from 600 kg/ha/yr during the 1970s to the present level of 2,200 kg/ha/yr. In the States like Andhra Pradesh, West Bengal, Punjab and Haryana the fish yield has increased even to 8,000 - 10,000 kg/ha. Demonstrations on intensive composite carp culture practices have shown a maximum production of 15, 000 kg/ha/yr (Jana and Jena, 2004).
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    ThesisItemOpen Access
    ROLE OF LACTIC ACID AS AN FEED ACIDIFIER AND ITS INFLUENCE ON GROWTH AND HEALTH IN LABEO ROHITA
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) NARASIMHA MURTHY, M. N., B.F.Sc.
    The global production of fish, crustaceans and molluscs has continued to increase and reached 144.6 million tonnes in 2008. While capture production has stayed around 92 million tones since 2001. The aquaculture production has continued to show strong growth, increasing at an average annual growth rate of 6.5% from 36.8 million tonnes in 2002 to 52.6 million tonnes in 2008 (FAO, 2011). India ranks second among top ten countries in aquaculture production with an average annual percent growth rate of 5.71 during 2006
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    ThesisItemOpen Access
    EFFECT OF STRESS ON ONTOGENY OF HUMORAL IMMUNITY IN CATLA
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) PRAKRUTHLG.S., B.F.Sc
    Aquaculture is one the fastest growing food sector with growth increasing at a rate of over 6-8%. Standardization
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    ThesisItemOpen Access
    EVALUATION OF BIOFILM OF AEROMONAS HYDROPHILA FOR ORAL VACCINATION OF CHANNA STRIATUS (BLOCH)
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) PRABHUGOUDA SIRIYAPPAGOUDER.B.F.Sc
    Aquaculture is the fastest growing food-producing sector, contributing nearly 36% to global fish supply in 2007 (FAO, 2009 and Infofish, 2009).
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    ThesisItemOpen Access
    PRODUCTION OF ALL- MALE POPULATION OF GUPPY, LEBISTES RETICULATES (ROBERT JOHN LECHMERE 1866) THROUGH THE APPLICATION OF AROMATASE INHIBITOR
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) CHANDRASHEKHARA, B. H, B.F.Sc.
    Sex manipulations in fishes employing hormones have become increasingly popular in recent years. The sexuality has great significance in fish, because there are differences in growth rate, behavior pattern, maturation time, body colouration, shape and size between the sexes in several species. Fish breeders are able to produce either males or females separately depending upon demand for monosex fish. In ornamental fishes, males are in greater demand due to their more attractive finnage and body color. The earnings of commercial aquarists can be increased if they are able to produce larger proportion of males in such species.