The Book of Household Management by Mrs. Beeton

779. THE GREAT QUALITY FIRST SOUGHT FOR IN A HOG is a capacious stomach,

and next, a healthy power of digestion; for the greater the quantity he can eat, and the more rapidly he can digest what he has eaten, the more quickly will he fatten; and the faster he can be made to increase in flesh, without a material increase of bone, the better is the breed considered, and the more valuable the animal. In the usual order of nature, the development of flesh and enlargement of bone proceed together; but here the object is to outstrip the growth of the bones by the quicker development of their fleshy covering.