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The injection of four-to nine-week-old fowls with Escherichia coli O111:B4 endotoxin (0-1 and 1-0 mg/kg) produced a two to eight fold rise in the histaminase activity of the plasma 24 h afterwards. In some cases this increase was still detectable after 48 h. This activity was strongly correlated with the p-phenylenediamine oxidase activity of… (More)
The metabolic disorders known as fatty liver and kidney syndrome and fatty liver-haemorrhagic syndrome are described, and their pathogenesis and aetiology are discussed in relation to current knowledge of the lipid metabolism of the fowl and dietary, environmental and physiological factors which can cause hepatic steatosis.
Groups of adults which were selected for low and high (normal) TMA oxidase activities produced chickens with a predominance of the same character showing that capacity for synthesizing the enzyme is strongly inherited. The low and high strains became homogenous in generations 2 and 3, respectively, demonstrating that the genetic factor that impairs the… (More)