This is the reason ivomec injectable is now ineffective against roundworms, too much use has built worm resistance. See post #38 https://www.backyardchickens.com/forum/viewtopic.php?id=172967&p=4 Ivomec products primary purpose is a wormer. Its primary purpose has been taken out of context, it just so happens its secondary beneficial purpose is a deterent to lice/mites. http://www.jefferslivestock.com/ivomec-pour-on/camid/LIV/cp/17186/
This is why other products should be used besides ivermectin pour on to kill lice/mites, to prevent worm resistance. The time will come when you'll need to use it to worm, then you'll be shocked to see worms again in a month or two. Myself and a few others here wont use it as a wormer anymore, dont trust it as an effective wormer no more.
This is why other products should be used besides ivermectin pour on to kill lice/mites, to prevent worm resistance. The time will come when you'll need to use it to worm, then you'll be shocked to see worms again in a month or two. Myself and a few others here wont use it as a wormer anymore, dont trust it as an effective wormer no more.
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