[Blackbeard D. Kuma]

I just thought of an idea on why I think a bull zoan fruit would be appropriate for Akainu. Akainu has made it clear that he will sacrifice anything in his way for the sake of absolute justice in order to apprehend or eliminate his "target". I correlate this notion of excessive violence to bloodshed; which symbolizes the colour red he represents. As for why a bull would be an appropriate animal for him, well, a bull is known as a ruthless and dangerous animal when provoked and it indiscriminately attacks its targets when in an enraged state. This behaviour is much the same as the behaviour that Akainu exhibits when he is in pursuit of his "target"; he has no regard for anyone and will kill anything in his way if necessary in order to catch his prey. So, I think that it will be his cruelty and the collateral damage, meaning the people that are victimized by his assaults, that he causes that deem a bull zoan fruit as appropriate.