Download or read book Effect of Proliferative Kidney Disease PKD on Blood and Immunological Parameters in Rainbow Trout Oncorhynchus Mykiss written by John Scott Foott and published by . This book was released on 1989 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Proliferative Kidney Disease PKD on Blood and Immunoloical Parameters in Rainbow Trout Oncorhynchus Mykiss written by John Scott Foott and published by . This book was released on 1989 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Proliferative Kidney Disease PKD in Rainbow Trout Oncorhynchus Mykiss written by C. R. W. Gould and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proliferative Kidney Disease in Salmonid Fishes written by R. P. Hedrick and published by . This book was released on 1987 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PROLIFERATIVE KIDNEY DISEASE written by GORGOGLIONE BARTOLOM and published by . This book was released on 2020-09-15 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Variation for Disease Resistance in Rainbow Trout written by Gareth Butterfield and published by LAP Lambert Academic Publishing. This book was released on 2012-05 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proliferative Kidney Disease (PKD) caused by the Malacosporean parasite Tetracapsuloides bryosalmonae, is the most economically damaging disease of British rainbow trout farming, costing the industry in excess of £2.5 million per annum. With no vaccine or prophylactic treatment available, and only management techniques currently adopted to minimise the stress and mortality associated with the disease, the research undertaken within this book addresses a potential alternative approach; selective breeding. The book will explain the investigation undertaken to identify that selective breeding for PKD resistance is possible, and how the level of additive genetic variation was calculated, allowing estimates of heritability to be documented for commercial strains of rainbow trout (Oncorhynchus mykiss).
Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1990 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fisheries Review written by and published by . This book was released on 1990 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Proliferative Kidney Disease PKD in Rainbow Trout Onchorhynchus Mykiss written by C. R. W. Gould and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 3. To test the efficacy of the antibiotic Fumagillin DCH in controlling the outbreak and severity of the disease on a commercial scale.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1990 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Development of the PKX Myxosporean the Causative Agent of Proliferative Kidney Disease in Rainbow Trout Salmo Gairdneri Richardson written by Michael Lawrence Kent and published by . This book was released on 1985 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Variation for Disease Resistance in Rainbow Trout Oncorhynchus Mykiss written by Gareth Melgalvis Butterfield and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Proliferative Kidney Disease (PKD) caused by the Malacosporean parasite Tetracapsuloides bryosalmonae, is presently the most economically damaging disease of British rainbow trout farming, costing the industry in excess of £2.5 million per annum in the UK alone. With no vaccine or prophylactic treatment available, and only management techniques currently adopted to minimise the stress and mortality associated with the disease, alternative approaches must now be considered. This document investigates if selective breeding for PKD resistance is possible by assessing the level of additive genetic variation, and calculating the subsequent estimates of heritability, for commercial strains of rainbow trout. During a PKD outbreak on a commercial farm, 1500 communally reared juvenile rainbow trout from two strains (Houghton Spring and Isle of Man) were sampled on a single day, their body weight and fork length measured, and severity of kidney swelling scored according to the scale of Clifton-Hadley et al. (1987). Fish were assigned to individual families using microsatellite parentage assignment. Significant additive genetic variation was observed in the population, and families were ranked according to estimated breeding values. A combined estimate of heritability (h2 = 0.19 ± 0.08) for kidney score suggests the population will respond well to selective breeding for kidney score, which may be deemed a measure of resistance, whilst the favourable genetic correlations between kidney score and the production traits measured suggest simultaneous selection for kidney score and growth traits should also be effective. In order to support the findings of the initial research, controlled challenge experiments were conducted. Using the family EBV information on kidney score from the IoM strain (due to its certification as a disease-free site), four females, two with high and two with low response to PKD, were each crossed with a randomly selected neomale to produce twenty two families for PKD challenge experiments. The PKD experimental challenges showed evidence of additive genetic variation to kidney score over an eleven week period, supporting initial findings. A low score was deemed as evidence of greater resistance to the parasite in this study. Although female EBV was taken into consideration in the statistical model, there was found to be no significant difference in resistance according to family. Immunohistochemistry stained kidney sections from each individual involved in the challenges proved kidney score correlated significantly to the number of parasites in the kidney, suggesting that the scale of Clifton-Hadley et al. (1987) is a sufficient and accurate basis on which to describe the severity of PKD, and infection level in rainbow trout. Having discovered evidence that furunculosis, causative agent Aeromonas salmonicida, plays a major role in the mortality of fish suffering from PKD in the field, the bacterial disease was investigated to assess the resistance of the same families used in the PKD challenges. Twenty one of the families were used to discover that additive genetic variation for resistance to furunculosis is apparent when assessed as both a binary and longitudinal trait, suggesting significant genetic improvement can be made to increase resistance to furunculosis in the IoM stock. No significant correlation was observed between kidney score, EBV, and resistance to this bacterium, but there was a positive phenotypic correlation found between furunculosis resistance and size, suggesting simultaneous selection for performance and resistance is possible within this population.
Download or read book A Study of Proliferative Kidney Disease in Rainbow Trout Salmo Gairdneri Richardson written by Deirdre Rafferty and published by . This book was released on 1986 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index Medicus written by and published by . This book was released on 2001 with total page 1756 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book California Fish and Game written by and published by . This book was released on 2006 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Myxozoan Evolution Ecology and Development written by Beth Okamura and published by Springer. This book was released on 2015-04-01 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an up-to-date review of the biology of myxozoans, which represent a divergent clade of endoparasitic cnidarians. Myxozoans are of fundamental interest in understanding how early diverging metazoans have adopted parasitic lifestyles, and are also of considerable economic and ecological concern as endoparasites of fish. Synthesizing recent research, the chapters explore issues such as myxozoan origins; evolutionary trends and diversification; development and life cycles; interactions with hosts; immunology; disease ecology; the impacts of climate change on disease; risk assessment; emerging diseases; and disease mitigation. This comprehensive work will appeal to a wide readership, from invertebrate zoologists, evolutionary biologists and developmental biologists to ecologists and parasitologists. It will also be of great practical interest to fisheries and conservation biologists. The identification of key areas for future research will appeal to scientists at all levels.
Download or read book Commencement Ceremony written by University of California, Davis. Graduate Division and published by . This book was released on 1990 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
