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Entries Tagged as 'Parasites'

Determining Worm Resistance To Dewormers

June 20th, 2008 · No Comments

Dr. William Shulaw, Extension Veterinarian, The Ohio State University
(Originally Published in Sheep Team Newsletter September 2007)
Although it is essential for sheep and goat producers to develop complementary strategies for sustainable parasite control, most will need to use chemical dewormers, at least occasionally or for selected animals, for the foreseeable future. When dewormers are used, [...]

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Tags: Parasites

Weeds And Worms: Managing Chemical Resistance

June 20th, 2008 · No Comments

By William Shulaw, Extension Veterinarian, The Ohio State University
(Originally Published in Sheep Team Newsletter June 2007)
Recently an article on the detection of glyphosate resistance in giant ragweed in a neighboring state was sent by email to many of us in OSU Extension.  Glyphosate is the active ingredient of Roundup and several [...]

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Tags: Parasites

Dewormers Approved For Use In Sheep

June 19th, 2008 · No Comments

By William P. Shulaw, Extension Veterinarian
(Originally Published in Sheep Team Newsletter October 2003)
In the April issue of the Sheep Team newsletter, we discussed drug resistant worms and the selection process that creates them in our sheep flocks. In that article we stressed the importance of knowing whether the products you are using are [...]

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Tags: Parasites

Fecal Egg Counts: What Do They Tell Us?

June 19th, 2008 · 1 Comment

By William Shulaw, DVM, Extension Veterinarian
(Originally Published in Sheep Team Newsletter September 2004)
In our last electronic newsletter article I wrote about using several approaches to monitor sheep and make some decisions for selective deworming.  One if these is the use of fecal egg counting techniques.  What do we mean by fecal egg counts (FECs)? [...]

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Tags: Parasites

How Do You Know Your Parasite Control Program Is Working?

June 19th, 2008 · 1 Comment

by William Shulaw, Extension Veterinarian
(Originally Published in Sheep Team Newsletter June 2004)
Seeing is believing, right? Most of us judge the success of our management or animal health programs by the results we observe. If we begin a vaccination program and no cases of the disease we are vaccinating for occurs, we may [...]

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Tags: Parasites

Drug Resistant Worms In Ohio Sheep Flocks

June 19th, 2008 · 1 Comment

by William P. Shulaw, Extension Veterinarian
(Originally Published in Sheep Team Newsletter April 2003)
Drug resistance has become a serious problem in the major sheep and goat rearing areas of the world. Resistance to all the chemical classes of dewormers has also been described in flocks of sheep and goats in the United States. Drug [...]

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Tags: Parasites