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This note discusses the correction made by Sheridan to the formula used for predicting changes in fish size on the basis of selection differentials for a correlated trait [Canadian Journal of Fisheries and Aquatic Sciences (1996) 53 (4) 933]. It draws attention to the fact that, to predict the direc...
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Escaped hybrid catfish (female Thai walking catfish, Clarias macrocephalus x male African catfish, C. gariepinus) from farms in central Thailand may interbreed with C. macrocephalus individuals in the wild. We assessed genetic introgression of C. gariepinus genes into four wild and two broodstock po...
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The classes of 2007 from the Atlantic Veterinary College, Ontario Veterinary College, and Western College of Veterinary Medicine were surveyed to determine what factors influenced the respondents' career path choices. Seventy percent (166/237) of those contacted participated in the survey of which 8...
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Deaths from acute zinc intoxication occurred among sheep that passed through a foot bath containing 20% zinc sulphate in order to obtain water. Experimentally it was shown that as little as 8 oz of a 20% zinc sulphate solution could kill within 4 hours of ingestion..
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Effective population size (Ne) of a natural fish population was estimated from temporal changes in allele frequencies at 7 microsatellite loci. Analysis of an historical collection of fish scales increased the precision of estimates by increasing the time interval between samples and applying the re...
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Clinical muscular and neurological signs are described for 13 Smooth Fox Terriers affected with a congenital form of myasthenia gravis. Treatment with a long-acting cholinesterase inhibitor in six cases resulted in temporary improvement in muscle strength. From examination of the phenotypes of 132 S...
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Laboratory research has shown that female fish can pass toxic organochlorines (OCs) from their bodies to their eggs, killing their offspring if sufficient quantities are transferred. We conducted a controlled incubation study using gametes from a wild, OC-contaminated walleye (Sander vitreus) popula...