Health advocates and environmental activists are fighting with poultry industry officials in Annapolis over a bill that would prohibit feeding chickens and turkeys any additive containing arsenic. The Baltimore Sun reports proponents call it a matter of prudence, while opponents warn it could hurt Maryland’s leading agricultural sector. Chicken farmers nationwide have stopped feeding their flocks a drug containing arsenic since a 2011 government study suggested the cancer-causing metal may be tainting poultry. The animal drug Roxarsone is fed to chickens and turkeys to kill parasites and boost the birds’ growth. An effort to ban arsenic from chicken feed failed to get out of the House Environmental Matters Committee last year.