SafeDog for Mac

From DigitalFriedChicken:

The health of your Dog can be tracked with SafeDog and/or used as Kennel management software, but at its heart, it's a guide to help you collect important information about your dog in order to keep him safe. With SafeDog you can rest assured that when you need to leave your dog with anyone (friend, relatives, groomers, boarding facilities) they will have all the printable pet records and information they need to properly care for your dog. Not only does SafeDog provide you with an incredible amount of information regarding health, vet visits etc., but you can also set up a training program. Each section in the training area is user definable allowing you to create the perfect training program for your dog.
SafeDog was built for the "ordinary" dog owner, but is powerful and sophisticated enough for breeders too. SafeDog is available in two versions:

A [Single User License] allows you to add information for 5 dogs. To add more then 5 dogs a Breeders License is required.
A [Breeders License] allows the entry of an unlimited number of dogs, Litters and Puppies.
SafeDog provides you with a running total of your dogs expenses, owner contact information, medical information, behavior information, family tree, grief expression, emergency signs.
Breeders will enjoy the benefits of getting organized (the way you have been wanting to, but just haven't had the software to do it!) Now you can store templates of your contracts (along with signed contracts) and any literature you would like to give to your potential clients directly in SafeDog. Also keep detailed information about the new adopting family (i.e., kids names, other pets/animals in their house, etc. - things that might be helpful if you need to help them with a problem). SafeDog can store the amount each puppy was sold for, along with the total received for the whole litter.