| Factors affecting the detection of infestations of Boophilus microplus in tick control programs. | |
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MedLine Citation:
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PMID: 985247 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Factors affecting the probability of detecting infestations of Boophilus microplus when herds of cattle are examined were studied. The probability of detecting a tick depends on the number of infested cattle in the herd, the probability of ticks being present on the areas of the beast examined, the efficiency of the examination and the proportion of the herd examined. A mathematical expression relating these factors was derived, and a range of values calculated to demonstrate the relative importance of each factor. It was evident that the efficiency of the examination should be kept better than 75%, and that it is necessary to employ a high sampling rate, preferably 100% of the herd. The probabilities of ticks being present on 6 predilection sites and 4 combinations of sites of an infested animal were determined experimentally. The tail butt, esutcheon, belly, dewlap and to a lesser degree neck and ear were all very suitable sites on which to find cattle ticks. A combination of tail butt, escutcheon and neck produced probabilities (0.58 and above) considered adequate to form the basis of an examination system. Examination systems used in New South Wales, Queensland, Argentina and at the United States-Mexico border are described. As a result of this study a new standardised system has been adopted by the Board of Tick Control for use by all New South Wales inspectors. |
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Authors:
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W A Palmer; N L Treverrow; G H O'Neill |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Australian veterinary journal Volume: 52 ISSN: 0005-0423 ISO Abbreviation: Aust. Vet. J. Publication Date: 1976 Jul |
Date Detail:
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Created Date: 1976-12-30 Completed Date: 1976-12-30 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0370616 Medline TA: Aust Vet J Country: AUSTRALIA |
Other Details:
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Languages: eng Pagination: 321-4 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Australia Cattle Cattle Diseases / diagnosis* Evaluation Studies as Topic Physical Examination / methods* Probability Tick Control / methods* Tick Infestations / diagnosis, veterinary* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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