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ThesisItem Open 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 RAJESHThe 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.ThesisItem Open 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).ThesisItem Open 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 2006ThesisItem Open Access EFFECT OF STRESS ON ONTOGENY OF HUMORAL IMMUNITY IN CATLA(Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) PRAKRUTHLG.S., B.F.ScAquaculture is one the fastest growing food sector with growth increasing at a rate of over 6-8%. StandardizationThesisItem Unknown 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.ScAquaculture is the fastest growing food-producing sector, contributing nearly 36% to global fish supply in 2007 (FAO, 2009 and Infofish, 2009).ThesisItem Unknown 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.ThesisItem Open Access DEVELOPMENT OF MONOCLONAL ANTIBODY (MAb) BASED FLOWTHROUGH IMMUNOGOLD ASSAY FOR DETECTION OF APHANOMYCES -CAUSATIVE AGENT OF EUS IN FISH(Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) GHANA. K.V., B.F.SCA destructive ulcerative disease of freshwater and brackish water fishes has been occurring in Japan (Hatai et a/., 1994)ThesisItem Unknown DEVELOPMENT AND STANDARDIZATION OF MONOCLONAL ANTIBODY BASED FLOW THROUGH IMMUNOASSAY FOR DETECTION OF APHANOMYCES INVADANS(Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) ADIL, B., B.F.ScMarine fisheries and aquaculture contribute to fish production, socio-economic development and renewable aquatic living resources