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Abstract

A grid was drawn on a lateral half of 10 hides, from cattle infected with both O. gutturosa and O. lienalis, which were obtained from an abattoir in central Florida, USA. Paired 7-mm diameter skin cores were taken from 24 grid sites on each hide and microfilariae (mf) extracted to determine their...

Author(s)
Ferenc, S. A.; Harty, T. M.; Courtney, C. H.; Copeman, D. B.
Citation
Veterinary Parasitology, 1989, 31, 3-4, pp 345-349
Abstract

This paper reviews what is known and not known about the epidemiology of Ostertagia ostertagi and related gastrointestinal nematodes in commercial beef-type cow herds in southeastern USA (Alabama, Louisiana, Arkansas, Georgia, Florida, Mississippi, Tennessee and eastern Texas) under the headings:...

Author(s)
Snyder, D. E.
Citation
Veterinary Parasitology, 1993, 46, 1-4, pp 277-288
Abstract

Evaluation of 845 cattle from Florida and Georgia, USA, for onchocerciasis indicated a significantly higher prevalence of infection with O. gutturosa and a significantly lower prevalence of infection with O. lienalis in the southern portion of Florida (subtropical region) than in the northern...

Author(s)
Ferenc, S. A.; Copeman, D. B.; Turk, S. R.; Courtney, C. H.
Citation
American Journal of Veterinary Research, 1986, 47, 10, pp 2266-2268
Abstract

The distribution of liver fluke in cattle in Florida, USA, is briefly discussed. Losses from liver condemnations in Florida may exceed $500 000 annually. Estimates of costs and benefits of control are presented. It is concluded that even under the most conservative estimates, returns exceed costs....

Author(s)
Simpson, J. R.; Kunkle, W.; Courtney, C. H.; Shearer, J. K.
Citation
Agri-Practice, 1985, 6, 2, pp 20-24
Abstract

The effectiveness of a morantel sustained-release bolus (MSRB) in controlling gastrointestinal nematode infections was determined in 70 Holstein heifer calves with no prior grazing experience. Calves were allotted to 2 treatment groups and were maintained in Florida during the grazing season on...

Author(s)
Bradley, R. E.; Bliss, D. H.; Newby, T. J.
Citation
American Journal of Veterinary Research, 1986, 47, 11, pp 2385-2388
Abstract

The immune responses induced in cattle by the different stages of T. parva, and their role in protective immunity are reviewed.

Author(s)
Morrison, W. I.
Publisher
Elsevier Science Publishers B.V., Amsterdam, The, Netherlands
Citation
Impact of diseases on livestock production in the tropics. (Proc. 4th Internat. Conf., Kissimmee, Florida, USA, 9-13 May 1983.) (Developments in Animal and Veterinary Sciences, 15.), 1984, pp 167-177
Abstract

Experiments were conducted on the induction of immunity to Babesia bovis in cattle with antigen extracted from erythrocytes infected with the parasite. Protection after inoculation with crude parasite-erythrocyte stroma mixtures was as strong as that induced by natural infection. B. bovis appears...

Author(s)
Mahoney, D. F.; Wright, I. G.; Goodger, B. V.
Publisher
Elsevier Science Publishers B.V., Amsterdam, The, Netherlands
Citation
Impact of diseases on livestock production in the tropics. (Proc. 4th Internat. Conf., Kissimmee, Florida, USA, 9-13 May 1983.) (Developments in Animal and Veterinary Sciences, 15.), 1984, pp 401-408
Abstract

Recent advances in the chemotherapy of theileriosis in cattle and sheep are reviewed with special reference to the efficacy of parvaquone (993C) and halofuginone, and the activity of ionophorous antibiotics.

Author(s)
McHardy, N.
Publisher
Elsevier Science Publishers B.V., Amsterdam, The, Netherlands
Citation
Impact of diseases on livestock production in the tropics. (Proc. 4th Internat. Conf., Kissimmee, Florida, USA, 9-13 May 1983.) (Developments in Animal and Veterinary Sciences, 15.), 1984, pp 179-192
Abstract

The results of several studies designed to assess the efficacy of closantel against nematodes in cattle, sheep and horses and against arthropod parasites in domestic animals are presented. The multiple antiparasitic activity of closantel seems to have the common denominator of being expressed...

Author(s)
Guerrero, J.
Publisher
Elsevier Science Publishers B.V., Amsterdam, The, Netherlands
Citation
Impact of diseases on livestock production in the tropics. (Proc. 4th Internat. Conf., Kissimmee, Florida, USA, 9-13 May 1983.) (Developments in Animal and Veterinary Sciences, 15.), 1984, pp 317-327
Abstract

This review covers the following topics: Fasciola hepatica-specific IgE; antibody-dependent cell-mediated cytotoxicity mechanisms (ADCC) in helminth infection; ADCC in F. hepatica infections; parasite non-specific IgE.

Author(s)
Pfister, K.
Publisher
Elsevier Science Publishers B.V., Amsterdam, The, Netherlands
Citation
Impact of diseases on livestock production in the tropics. (Proc. 4th Internat. Conf., Kissimmee, Florida, USA, 9-13 May 1983.) (Developments in Animal and Veterinary Sciences, 15.), 1984, pp 359-370

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