Preventative Maintenance deworming

Preventative Maintenance deworming -...

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Preventative Maintenance:  Current Wisdom on  Deworming AN 161 Spring, 2006
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Downside of evolution Although the history of modern  anthelmintics is relatively short, there  has been considerable development of  resistance already For example, thiabendazole, the  “original” benzimidazole, which was  developed in the 1960’s, is essentially  worthless today
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Scheduled deworming Protocol developed by parasitologists to  minimize pasture contamination A rotating list of drugs was part of this  protocol At first, this was a very effective  approach, particularly with large  strongyles
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Rotation of drugs Problems begin when worms developed  resistance of one or more of the drugs Result is horse is essentially  not   dewormed when the drug used is an  ineffective one Different approaches to rotation  were/are employed to attempt to  minimize development of resistance
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Rotations Three classes of drug, A, B, C
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This note was uploaded on 11/30/2009 for the course AN 161 taught by Professor Newell during the Spring '06 term at Becker College.

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Preventative Maintenance deworming -...

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