Dr. Pitcairn's Complete Guide to Natural Health for Dogs and Cats.
My boxer had symptoms of hip dysplasia when he was two. I bought some accupuncture needles, placed them in his legs, hips and along his spine. He would just lay there and get more and more relaxed, unless I put a needle in the wrong spot, at which point he would jump and complain because it hurt. The needles need to go in strategic places. He liked them near the joints, in the curvatures. Otherwise they hurt him. He stopped limping, lived another five years, never limped again.