Rate of Development, Viability, Vigor, and Virulence of Ascaridia galli Ova Cultured Respectively in Air and in Water

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Abstract
Development of ova was more rapid in water than in air cultures (90% relative humidity), and also there was a larger percentage of viable ova. These larvae, when experimentally fed to chickens, revealed no significant difference between the numbers of worms, but the worms from air-cultured ova grew at a significantly faster rate than those from water-cultured ova. The larvae from the 2 types of cultures showed no differences in virulence as indicated by weight gains made by the chickens to which they were fed.

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