Distiguishing if its a apbt or not

I dont know anything about bloodline and what bred they are for or from except for the size and their look Im assuming they are pitbulls. I been looking at dog and their bloodline but im confused at how people distinguished apbt by their bloodline and their size. Well my question is how would you know which bloodline represent a apbt or is not? And everyone kept sayin blue pit are mutt, is that true?

 

Blue pits are mutts? False. Blue is an accepted color in our breed. What you have read is about those "Kennels" that "especialize" in Blue dogs. Most likely, these are mutts b/c "blue" in coloration is a mutation of the black gene and is considered "rare". Kennels that are peddlers or BYB (back yard breeders) are those that seek to fulfill the fad demand of "rare" colors by crossing regular bully type dogs with Neo mastiffs (this breed has a consistant and dominant blue in their breed).

Bloodlines: Another way to look at "bloodlines" is as "families" of dogs. When you take a group of dogs, breed only within this group for a few generations, you have a bloodline. This does not mean it will be useful for anything. It only defines a bloodline or strain. Some bloodlines (families) were created for "Show" others for "Hog Hunting", etc. It is the duty of the buyer to do their research and purchase a dog of the correct "bloodline" that will meet their expectations.

Conformation: There are determined measurements for all body parts of the dog. Each breed has their "Standard" of what a "perfect" specimen of the breed should. This standard is used by judges to gauge how close to "perfection" a particular dog may be.

I hope this helps

 

yeah thx, but how do you know which bloodline is a game dog or just for show?