THERE IS A saying in ranch country: "Spring rains kill lice." In some places, it's said: "Green grass kills lice."Either way, the thingpeople are observing is an improving plane of nutrition strengthening immune systems and thereby reducing parasite loads. This occurs not because some material in green grass kills lice but because of improved nutrition.The cattle are benefiting from a diet with increased protein and more digestible forage, but also with more biologically available trace elements, vitamins and beneficial enzymes.
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