The invention concerns means for improving the environment, for example in hog confinements and horse stables, and for keeping hogs and horses and other animals as well as human beings, for example animal handlers, in good health. The means consist of a mixture comprising on the one hand sarsaponines of the Yucca Schidigera plant and on the other hand garlic in appropriate form, and it is supplied commercially for blending into all kinds of feed in definite quantities so that the relevant animals receive appropriate proportions.
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