The combined action of the Nisin and Lactoperoxidase system activation on the microbiological quality of raw milk with special emphasis against E.coli O157H7 in milk: Zina Saab Khudhir and Safwa Mustafa Hammad. Iraqi J. Vet. Med. 2017;40(2):61-65. doi:10.30539/iraqijvm.v40i2.113