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VetMed Resource

Veterinary information to support practice, based on evidence and continuing education

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Abstract

Two groups of yearling cattle which had been treated with ivermectin either three and eight, or three, eight and 13 weeks after turn out to trichostrongyle contaminated pasture in their first grazing season were exposed in the following season to natural challenge with helminth parasites. To assess ...

Author(s)
Armour, J.; Bairden, K.; Ryan, W. G.
Citation
Veterinary Record, 1988, 122, 10, pp 223-225
Abstract

Two studies demonstrated the persistent activity of ivermectin injected subcutaneously into cattle at 200 µg/kg in preventing the establishment of induced infections with Ostertagia ostertagi, Cooperia oncophora and Dictyocaulus viviparus. There were reductions in mean worm count (compared with the ...

Author(s)
Armour, J.; Bairden, K.; Batty, A. F.; Davison, C. C.; Ross, D. B.
Citation
Veterinary Record, 1985, 116, 6, pp 151-153
Abstract

Eight controlled trials were conducted, using 96 cattle of European breeds, to evaluate the efficacy of abamectin against natural and artificially acquired infections by adult and fourth-stage larvae of all the economically important gastrointestinal nematodes and lungworms in Germany and the UK....

Author(s)
Heinze-Mutz, E. M.; Pitt, S. R.; Bairden, K.; Baggott, D. G.; Armour, J.; Barth, D.; Cramer, L. G.
Citation
Veterinary Record, 1993, 132, 2, pp 35-37
Abstract

The correspondents draw attention to instances of clinical ostertagiasis or parasitic bronchitis in young cattle after introduction onto aftermath pastures in late summer that had not been grazed by livestock since the previous autumn. Clinical or other evidence of infection appeared too soon for...

Author(s)
Armour, J.; Al Saqur, I. M.; Bairden, K.; Duncan, J. L.; Urquhart, G. M.
Citation
Veterinary Record, 1980, 106, 8, pp 184-185
Abstract

Administration of a morantel tartrate sustained release bolus into the rumen of calves immediately before turnout on to spring pasture in May substantially reduced the level of pasture contamination with infective larvae (principally Ostertagia ostertagi) later in the grazing season. Compared with...

Author(s)
Armour, J.; Bairden, K.; Duncan, J. L.; Jones, R. M.; Bliss, D. H.
Citation
Veterinary Record, 1981, 108, 25, pp 532-535

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