Practical Advice For Growing a Parasite Resistant Herd

Some time back, I wrote about grazing management to reduce parasites, and in particular liver flukes. These modest management changes appears to be a simple way to reduce parasite populations and help us when parasites have developed resistance to the wormers we relied on in the past. To refresh your memory, here are the practices we can use to reduce worms: Leave taller residual. The taller the leaf, the harder it is for the worm larvae to reach the top and the harder it will be for the larvae to end up in the animal. Provide longer rest periods. Worm larvae have a limited life span. It only makes sense that a longer rotation will result in fewer live larvae to infect your stock when they come back to that pasture. Graze for shorter periods in each paddock. Moving your stock out before they begin to re-graze plants keeps their mouths from moving closer to the ground where the larvae populations are highest. And, if you're dealing with liver flukes, keep your animals out of the creek or pond. This keeps them from encountering the snails that carry the immature liver flukes. You can read all about that life cycle in my previous article. We can also

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