I have a hen with mareks that has survived 2 weeks , she got it first then another one that died but she is still alive. Is she worth trying to nurse back to health or just cull her. I figured she survived this long that she is putting uo a fight. She eats and drinks on her own and poops out really healthy looking poop thats big and normal colors . She cant stand due to perilysis and hangs a wing to the side.