how to feed a 4month old lab puppy

Question
I have a lab puppy & its now nearly 4 months old. Till now am giving food for 3 times a day & in mean time am giving snack times(some times only). Know, my problem is mid of its 3rd month onwards, its having some lavatory problem itseems. cuz, it was going only once in a day or 1-2 times in a couple of days. So, plz tel me wat to do for that probs.

Answer
If it is having loose bowel movements, take it to a vet if you can.  Very often the problem is due to parasites and the vet can determine which one and the best way to treat it.  Often the vet needs to look at a stool sample with a microscope.  Some books on dog describe the different parasites and the proper treatment.  I wish I could tell you where you can find th einformation if you can't take the dog to a vet.  

You are feeding it a dog food?  One other thing is over feeding can cause loose bowel movements too.

You should be feeding a puppy chow now. Switching to an adult chow for the larger breeds at 4 months, slows growth and helps develop sturdier joints.

Your dog definitely should be narrower at the waist than the hips and chest. You should be able to easily feel the ribs, but not see them. Each dog is different. Standard recommendations are a good place to start, but each dog must have its food and exercise adjusted to its individual needs. Here is a link to a good illustrated guide, http://www.longliveyourdog.com/twoplus/RateYourDog.aspx