This is why I don't allow them released to the general public anymore because they are to fight crazy at an early age and can be bred to anything, straight , or crossed and produce winners . I have less then 15 "Pure Straight Blood" left because I don't need that many to have top quality of dogs ! The percentages are that high . Most of the time I had to seperate them at 6 weeks and still do . F;ck,fight, or hold the light, they wanna be where the action is ! I can't help the fact you are a novice pet owner who can't give direction for dogs of this kind of prey drive . - Iron Mike