Mixed meat with duck 1kg

Lamb, Beef and pork make up the 80% meat, in ratios of 20% lamb, 20% pork, 30% beef 10% duck meat 10% duck bone 5% either pig, lamb or ox liver 5% either pig testicle,ox kidney or ox spleen. We use 30% heart, 20% meat, 20% lung in this mix as well as the 10% offal and 20% duck .