Probios Horse Soft Chews apple flavor net weight 1.32 lbs. (600 grams). Probios Horse soft chews support the balance of naturally occurring beneficial bacteria in the digestive system to help maintain healthy appetite and digestion. Contains a source of live (viable) naturally occurring microorganisms. These apple-flavored probiotic chews are for intermittent or supplemental feeding only. Ideal for trailering/traveling shows/competitions changes in environment weather changes.