Presume that you have just been called in to consult for a swine farmer whose pigs aren't growing well, seem to have some bone abnormalities, seem weak, are anemic, have a staggering gait, are goose stepping, and seem prone to numerous secondary infections. take your best shot. which vitamin or vitamins might be at fault here? be specific as to why you name each one. (provide your answer as a bulleted or numbered list.)