The use of magnesium alloy bullets.
D000497:Alloys / Q000008:administration & dosage; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D008274:Magnesium / Q000008:administration & dosage*; D008275:Magnesium Deficiency / Q000662:veterinary*; D013746:Tetany / Q000662:veterinary*
D000497:Alloys; D008274:Magnesium