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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, 108, 25, pp 532-535
Abstract

The correspondents express reservations about the conclusions made from a survey of the use of anthelmintics in cattle in England and Wales in 1978 [see abstracts above]. They consider it arbitrary to dismiss 8 out of 9 doses given to calves at yarding as of doubtful value (because the...

Author(s)
Armour, J.; Duncan, J. L.; Jennings, F. W.; Urquhart, G. M.
Citation
Veterinary Record, 108, 14, pp 317
Abstract

Calves were grazed from November 22nd 1976 to January 11th 1977 on pasture heavily contaminated with infective larvae of Ostertagia ostertagi and Cooperia oncophora and were then divided into 3 groups which were treated orally with oxfendazole at 0, 2.5 or 5.0 mg/kg body-weight. Postmortem...

Author(s)
Armour, J.; Duncan, J. L.; Reid, J. F. S.
Citation
Veterinary Record, 1978, 102, 12, pp 263-264
Abstract

In a number of controlled trials in cattle using experimental infections, Netobimin, administered orally at 7.5 mg/kg showed efficacies of 90-96%, 98-100% and 88-97% against adult Ostertagia ostertagi, Dictyocaulus viviparus and Cooperia oncophora, respectively, while larvicidal activity, as...

Author(s)
Duncan, J. L.; Armour, J.; Bairden, K.
Citation
Proceedings of the 14th World Congress on Diseases of Cattle, Dublin, 1986, 1, pp 166-169
Abstract

Worm-free lambs (n = 6) were infected with 5 000 L3 of an ivermectin/benzimidazole/closantel resistant strain of H. contortus. On day 21 post infection animals were allocated according to worm egg counts, to 2 groups of 3 animals each and on day 29 one group was treated with albendazole at 3.8...

Author(s)
Echevarria, F. A. M.; Armour, J.; Bairden, K.; Duncan, J. L.
Citation
Journal of the South African Veterinary Association, 1993, 64, 1, pp 31-34
Abstract

Author(s)
Duncan, J. L.
Citation
Veterinary Times, 1994, 24, 3, pp 9-10
Abstract

The first edition of the W.A.A.V.P. anthelmintic guidelines for ruminants was published in 1982. Since then improved parasitological procedures have been developed, new therapeutic and prophylactic products have appeared requiring different test methods, and registration authorities are requesting...

Author(s)
Wood, I. B.; Amaral, N. K.; Bairden, K.; Duncan, J. L.; Kassai, T.; Malone, J. B., Jr.; Pankavich, J. A.; Reinecke, R. K.; Slocombe, O.; Taylor, S. M.; Vercruysse, J.
Citation
Veterinary Parasitology, 1995, 58, 3, pp 181-213

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