Updated May 09, 2016. Cecum cancer is a type of colon cancer, but the signs and symptoms of this disease are sometimes elusive. The cecum demarcates the beginning of your large intestine. This pouch-like section of intestine connects a portion of the small intestine, called the ileum, to the ascending colon.
Most good breeders don't let their puppies leave until around 8 weeks of age (and in toy breeds, 10 or 12 weeks), which means that your puppy may not have been leash trained prior to you picking him up. For large breeds, this may not be the case.
The minimum age for a SMALL dog to whelp(have pups) is 2 years(this is the safe age, although some small dogs get away with having puppies at 1-1 1/2 years of age) and 3 for bigger dogs because they muture later, some bigger dogs still not having their first season till 2 years.