Feeding an aduly Lab

Question
My son has a Black Lab. She is 10 months old. Weighs 55 pounds. How much should she be fed? She has been spade. I do not know if that makes a difference

Answer
Ultimately, how much depends on what you feed and the activity level of the dog.  At that age, I would probably do about 1 1/2 cups per meal, and feed 2 meals a day.  Then based on how she looks over a few weeks decide if she needs more of less.  You want to maintain her weight, and 55# at that age is fine.