Hello there. I hope I will be able to help you learn a few general guidelines for feeding your dog.

The general rules about feeding dogs and cats are simple:
1)    Size is your guide line, most vets recommend ¼ cup per pound, fed twice a day.
2)    The amount of exercise your dog gets will make a difference in the amount of food he or she needs.
3)    Your dog should have enough flesh on his or her sides that you should not be able to see the ribs, but not enough that you can’t feel them when you stroke his or her sides. ( Remember this also varies by breed, Greyhounds are naturally thin)
4)    It is a good idea to discuss your particular breed with your vet and take their advice since I of course don’t know your dog thank goodness, you know fighting like cats and dogs and all that.

Always remember that the most important thing to any dog or cat is love so spend some time with you pet today.