The Extent to which Self-Augmentation of Nematode Parasitism Occurs in Lambs

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Abstract
Sheep reared worm free were used as indicators of the availability of sheep nematode infective larvae during the summer on pasture grazed by ordinary flock ewes and their lambs. Data were collected in terms of worms found in the test sheep at post mortem examination after periods of three weeks' exposure in the field.