Topic: Sheep Wormer Resistance
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Answers to Common Questions
What are the odds that a 7 month old colt could have a parasite r...
Probably lied to. I doubt he's resistant to anything. Its more likely that he was never wormed, or his dose was too light for his weight. You aren't going to hurt him by worming him again, and make sure that whatever wormer you get says tha... Read More »
Source: http://answers.yahoo.com/question/index?qid=20090124162139AA7Mjwd
How to identify worm resistant sheep
Breeders can identify resistant animals on their property, by taking individual worm egg counts and calculating a worm egg count Estimated Breeding Value (EBV) for each animal. A ram's worm egg count EBV indicates how readily the ram's worm... Read More »
Source: http://www.wool.com/SID-BC2803C2-A41A2B72/Grow_WormBoss_Worm-mana...
Why improve sheep resistance to worms
Sheep have some ability to control the numbers of worms they carry, through a process commonly termed host resistance. Some benefits of sheep controlling their own worms include: They can be drenched less often By carrying fewer worms there... Read More »
Source: http://www.wool.com/SID-BC2803C2-A41A2B72/Grow_WormBoss_Worm-mana...
More Common Questions
Answers to Other Common Questions
The increased resistance to infection is thought to be the result of a more effective immune response to the parasites, although the exact mechanism of the resistance is not known. Even within parasite resistant breeds there is variation in...
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Source: http://www.sheepandgoat.com/HairSheepWorkshop/parasitism.html
