Chiggock
From Tardis Wiki, the free Doctor Who reference
Chiggocks were genetically engineered food animals created by splicing the genes of chickens and pigs. They resembled large headless turkeys. (EDA: To the Slaughter) They possessed extremely limited intelligence, at best, possessing no central nervous system, and were genetically engineered to "walk into the oven". The Doctor referred to them as "primitive" creations.