The Hyperpigs in Alastair Reynolds' Revelation Space series were also human-pig chimeras created originally for human transplant organs;
"The soldier whipped the blanket away from the huddled figure.
The prisoner, crouched into a small foetal shape, squealed against the sudden intrusion of light, hiding its dark-adapted eyes.
Clavain stared. The prisoner was nothing that he had been expecting. At first glance it might have been taken for an adolescent human, for the proportions and size were roughly analogous. A naked human at that - unclothed pink human-looking flesh folded away into the hole. There was a horrid expanse of burned skin around its upper arm, all ridges and whorls of pink and deathly white.
Clavain was looking at a hyperpig; a genetic chimera of pig and human...
Somewhere before the dawn of the Demarchist era, in the twenty-first or twenty-second century, not far from the time of Clavain's own birth, a spectrum of human genes had been spliced into those of the domestic pig. The intention had been to optimise the ease with which organs could be transplanted between the two species, enabling pigs to grow body parts that could be harvested later for human utilisation... The genetic intervention had gone too far, achieving not just cross-species compatibility but something entirely unexpected: intelligence. " From Redemption Ark, by Alastair Reynolds, 2002