i feed our patterdale, ZAK, on raw minced chicken, beef, offal, from the butchers £5 for 10lb, last"s ages,also feed him on raw bones, lamb, for free off the butcher, and i got chicken backs for £2, of a whole sale butcher near me in manchester, if anyone needs some chicken backs PM me i will be happy to help, i starve him for aday a month, and dont give them dry mix at the same time, as it has different digest times than raw meat, i giv him dry mix once a week, or every couple of weeks, his teeth are clean an white,and coat is shiny as, and he"s very alert, cost me about £1.50 a week, happy