Please read this before neutering or spaying your dogs.
This article suggests that our dogs should NOT be neutered or spayed before 12 months of age.
It claims that dogs have a higher risk of bone cancer if you fix them before a year.
http://cebp.aacrjournals.org/cgi/content/full/11/11/1434?eaf

Click here to download an article in pdf form on Giardiasis.
This is a common problem among dogs and puppies and is highly treatable.