Indeed i have heard that, and was he petting a big dog when he said that? I figure my now 3 yr old very friendly lab with all the equipment he started with but no indescriminate breeding ever allowed, could be used to sire pups in spring and early summer and then the best ones could be sorted and the rest might be real tasty on those cold nights sitting near the fire during the starving moons of winter. But if you try to eat my best friend well, maybe that might not be such a good idea, ya know, ya know what i mean? So he has never been allowed to learn to chase deer or livestock, just call them back to your side that's all and give them a sweet pet, no more, that's all the really want is your sweet pet and some regular chow. My guy could never survive long on just the scraps from my table he's just too specialized for that but if you wanted to know about dog breeds and some of the things they have been breed to do and their care and exercise requirements you could check this book out at the library:
Complete Guide to Dogs
by Sheldon L. Gerstenfeld, V.M.D
with Jacque Lynn Schultz
subtitled:
Everything You Need to Know
About Choosing and Caring for Your Pet
Chronicle Books 1999
ISBN 0-811841904-3