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Health & Nutrition
Deworming question
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<blockquote data-quote="jerry27150" data-source="post: 1219297" data-attributes="member: 1177"><p>the guy that used too manage the herd for Missouri figured it out after a few years. said he would have 3-5 cows each year that would look wormy & would worm the whole herd b/c of those. finally decided to just sell those cows & kept cows that would build immunity to the worms & have no problems. only wormer I use on my cows is cheap stuff to kill flies. calves are a different story as it takes two years to build immunity. but if you worm them too often they will not build immunity</p></blockquote><p></p>
[QUOTE="jerry27150, post: 1219297, member: 1177"] the guy that used too manage the herd for Missouri figured it out after a few years. said he would have 3-5 cows each year that would look wormy & would worm the whole herd b/c of those. finally decided to just sell those cows & kept cows that would build immunity to the worms & have no problems. only wormer I use on my cows is cheap stuff to kill flies. calves are a different story as it takes two years to build immunity. but if you worm them too often they will not build immunity [/QUOTE]
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