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

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Abstract

ARIZONA, 1939-4.-Short notes are given on (1) negative bacteriological research into INFECTUOUS-KERATITIS in range cattle, (2) calf losses and their prevention by more skilful management, (3) control of ox-warble flies by derris, and (4) the breeding of strains of fowls resistant to FOWL PARALYSIS. ...

Citation
Extracts from Annual Reports of Agricultural Experiment Stations, U.S.A.,
Abstract

The effect of ivermectin delivered from a sustained-release bolus (I-SRB) on the weight gain of beef cattle through a grazing season was evaluated using 20 yearling beef steer calves randomly divided into 2 groups of 10 animals each. Calves in the control group each received a placebo bolus while...

Author(s)
Rickard, L. G.; Zimmerman, G. L.; Hoberg, E. P.; Wallace, D. H.
Citation
Veterinary Parasitology, 1991, 39, 3-4, pp 267-277
Abstract

Specimens of O. leptospicularis were recovered from abomasa of 17 of 23 naturally infected calves in Oregon, USA. Also present were: O. kolchida, O. lyrata, and O. ostertagi. The co-occurrence of specific pairs of species (O. leptospicularis: O. kolchida and O. ostertagi: O. lyrata) supports the...

Author(s)
Mulrooney, D. M.; Bishop, J. K.; Zimmerman, G. L.
Citation
Journal of the Helminthological Society of Washington, 1991, 58, 2, pp 260-262
Abstract

A study was initiated to (1) determine species of gastrointestinal nematodes present in cattle in selected areas of Oregon, USA, (2) examine seasonal abundance of these nematodes as an indicator of periods of transmission, and (3) determine when developmental inhibition occurs in the major genera...

Author(s)
Rickard, L. G.; Zimmerman, G. L.
Citation
Veterinary Parasitology, 1992, 43, 3/4, pp 271-291
Abstract

The reproductive performance of beef cows and the weight gain of their calves on a ranch at Langlois, southern Oregon coast, USA, was evaluated after oral administration of clorsulon or clorsulon in combination with the subcutaneous administration of ivermectin. 150 pregnant cows harbouring...

Author(s)
Rickard, L. G.; Zimmerman, G. L.; Hoberg, E. P.; Bishop, J. K.; Pettitt, R. J.
Citation
Veterinary Parasitology, 1992, 41, 1-2, pp 45-55
Abstract

The epidemiology of bovine ostertagiasis in northwestern USA (Oregon, Montana, Washington State, Idaho, Wyoming, California, Nevada, Utah) is reviewed under the headings: factors influencing epizootiology (elevation, topography, moisture, rainfall, snow, geothermal water, irrigation); epidemiology...

Author(s)
Zimmerman, G. L.; Worley, D. E.; Rickard, L. G.
Citation
Veterinary Parasitology, 1993, 46, 1-4, pp 303-311

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