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The effects of various constant temperatures on the development of the free living-stages of some nematode parasites of cattle.
The eggs and larvae of Cooperia punctata, C. oncophora, Ostertagia ostertagi, Trichostrongylus axei, and T. colubriformis displayed a similar rate of development in fecal cultures at various constantExpand
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Lymphocyte reactivity to Ostertagia ostertagi L3 antigen in type I ostertagiasis.
To better understand the immune response of calves infected with Ostertagia ostertagi, studies were conducted to examine cell-mediated immune responses to L3 antigen and phytohemagglutinin (PHA) byExpand
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Some effects of x-ray on the infective larvae of the cattle nematode Trichostrongylus axei.
Abstract 1. 1. Doses up to 90,000 r x-ray failed to inhibit the motility of the infective larvae of Trichostrongylus axei maintained in tap water at room temperature for 28 days. 2. 2. Irradiation ofExpand
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Efficacy of a pour-on formulation of eprinomectin (MK-397) against nematode parasites of cattle, with emphasis on inhibited early fourth-stage larvae of Ostertagia spp.
OBJECTIVE To evaluate efficacy of topically applied eprinomectin against inhibited early fourth-stage larvae (IL4) of Ostertagia spp in calves. ANIMALS 4 groups (n = 6 [replicates]) for doseExpand
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Coccidia in cows and calves on pasture in north Georgia (U.S.A.).
The prevalence and abundance of coccidian oocysts were determined in a herd of beef cows and calves on fescue pastures in the Piedmont area of Georgia during 4-consecutive grazing seasons. TwelveExpand
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Evaluation of the parasitological and production responses of a cow/calf operation to an anthelmintic program with ivermectin.
The efficacy of a treatment schedule using ivermectin, given subcutaneously at the rate of 200 micrograms kg-1, to control gastrointestinal parasitism and its effect on liveweight gains was assessed.Expand
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