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

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Abstract

The Canadian gFARAD was contacted for milk withdrawal recommendations after multiple cases of topical ivermectin use in lactating dairy cows. The following 4 cases included pertinent milk residue information and illustrate the challenges faced by producers, veterinarians, and regulatory authorities ...

Author(s)
Chicoine, A. L.; Durden, D. A.; MacNaughton, G.; Dowling, P. M.
Publisher
Canadian Veterinary Medical Association, Ottawa, Canada
Citation
Canadian Veterinary Journal, 2007, 48, 8, pp 836-838
Abstract

Next-generation deep amplicon sequencing, or metabarcoding, has revolutionized the study of microbial communities in humans, animals and the environment. However, such approaches have yet to be applied to parasitic helminth communities. We recently described the first example of such a method -...

Author(s)
Avramenko, R. W.; Redman, E. M.; Lewis, R.; Bichuette, M. A.; Palmeira, B. M.; Yazwinski, T. A.; Gilleard, J. S.
Publisher
Elsevier Ltd, Oxford, UK
Citation
International Journal for Parasitology, 2017, 47, 13, pp 893-902
Abstract

Resistance to modern anthelmintics by ruminant nematode parasites is an increasing problem throughout the world. To date the problem has largely been reported in parasites of small ruminants, but there are increasing reports of such resistance in nematodes recovered from cattle. Until now there...

Author(s)
Gasbarre, L. C.; Smith, L. L.; Lichtenfels, J. R.; Pilitt, P. A.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2009, 166, 3/4, pp 281-285
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 inadvertent use of ivermectin as an anthelmintic in a herd of 120 cattle (including 60 milking cows) in Arkansas, USA, is reported. Following notification of this error, it was decided that the affected herd should remain off the market for at least 35 days with testing to assure drug clearance ...

Author(s)
Davis, M.
Citation
Dairy, Food and Environmental Sanitation, 1991, 11, 6, pp 308-309
Abstract

Two herds of cows and their calves which were kept on separate but similar pastures were used in the study. The treated group consisted of 44 cows and 44 calves; the untreated control group consisted of 45 cows and 45 calves. Calves were given ivermectin (200 mg/kg s.c.) on June 29 (when calves...

Author(s)
Kennedy, M. J.
Citation
Canadian Veterinary Journal, 1990, 31, 8, pp 589-590
Abstract

Two herds comprising 466 Hereford x Brangus cow/calf pairs were each put onto 6 pasture plots in Georgia, USA. 3 pasture groups from each herd served as untreated controls (118 cows and 112 calves) and the remaining animals (121 cows and 115 calves) were given a single sc injection of ivermectin at ...

Author(s)
Ciordia, H.; Plue, R. E.; Calvert, G. V.; McCampbell, H. C.
Citation
Veterinary Parasitology, 1987, 23, 3-4, pp 265-271
Abstract

Ivermectin administered orally to goats (of the breed 'Spanish') or to white-tailed deer (Odocoileus virginianus) was highly effective against Amblyomma americanum. For goats, daily oral doses of 20 µg/kg resulted in ≥2 p.p.b. ivermectin in the blood. This level was sufficient to cause >95%...

Author(s)
Miller, J. A.; Garris, G. I.; George, J. E.; Oehler, D. D.
Citation
Journal of Economic Entomology, 1989, 82, 6, pp 1650-1656
Abstract

Data from 951 cows and 905 calves collected over a 3-year period were analyzed to determine the effect of control of internal and certain external parasites on cow/calf performance. The cattle grazed on a ranch in north central Texas, USA, where average annual precipitation is 26 inches. Treatment...

Author(s)
Adams, N. J.; Hoelscher, C. E.; Heitschmidt, R. K.; Pinchak, W. E.
Citation
Progress Report - Texas Agricultural Experiment Station, 1991, No. PR-4819-4865, pp 127-130
Abstract

A total of 41 cows and their calves were used to evaluate the effect of midsummer treatment (August 3) with ivermectin (IVOMEC) in Oklahoma, USA. August-October weight gains in calves (119 lbs in 21 controls compared with 143 lbs in 20 treated animals) were significantly improved by treatment....

Author(s)
Smith, S. C.; Kelley, J. W.
Citation
Animal Science Research Report, Agricultural Experiment Station, Oklahoma State University, 1991, MP-134, pp 201-203

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