Equine Health Shark Net Tuffrock Poultice They are a large worm They are a large worm that can cause severe lung damage during migration and can also cause life threatening colics The Eggbutt Ring prevents pinching of the lips and gives a more solid feel against the side of the face ​The other essential ingredients of any good joint care formula are Manganese a required cofactor for enzymes involved in cartilage metabolism and Ascorbic Acid a component of hydroxyproline an amino acid that plays a key role in collagen stability For an average 500 kg horse the initial dose rate is 20g 1 large scoop mixed in feed twice daily for 25 days or until improvement in condition is noted