Coprophagia - Eating Feces

Although most people find it repulsive, it is quite common for dogs, especially puppies to get in the habit of eating feces. An unclean pen can contribute to the puppy forming the unpleasant habit of eating feces which can carry on into adulthood. This habit is called Coprophagia, often this results when the puppy nurses on the unclean fur of the mother but can also indicate that there is something lacking in the dog’s diet.

Often this behavior will just go away when the pup matures. In the mean time, keep the pup's toilet area as clean as possible. Be sure that the puppy is checked for worms and other possible problems such as something lacking in the dog's diet. It is a good idea to have your Greyhound’s diet approved by your vet, or switch to a nutritionally complete dog food.
Many owners have had success in stopping their Greyhound eating feces by supplementing their dog's diet with one spoonful of canned pineapple or a teaspoon of spinach. There are products on the market such as 'Forbid' that can also be added to the dog's food to help stop the problem.
It is also possible to make the feces unappetizing by sprinkling it with hot sauce, lemon juice or anything the dog finds distasteful.

If your Greyhound is still fond of eating feces, try teaching your dog not to touch it using the command 'Off.' Put your dog on leash and walk him by some feces. If he shows any interest in it, tell him, 'No, off.' If he continues to go for it, then loudly scold him, 'OFF!!!' and pull him away from it with a short, sharp tug on the leash. When he stops, praise him. Continue repeating the “off” procedure until he gets the idea that this is not okay. Whenever your Greyhound shows no interest in the feces, be sure to tell him how happy you are through praise and reward. Be sure to clean up your dog's feces immediately after he defecates so as to prevent the problem in the first place.