Hello I have a really unhappy peking duck. A while ago he got sick (loosing weight, not eating and coughing alot). We took him to the vet and he was put ono Entrovet for a while which did eventually cure him. He did seem a little weak afterwards but weren't too concerned as our other duck who got it received the same course of treatment and recovered after a while. However, now my peking is over his flu but seems to be lost the use of his right leg and is unable to walk around. He struggles to even turn on his stomach and is unable to stand. Is there anything anybody can suggest, I am really not too sure what to do. I have read a post suggesting that a lack of vitamin B can cause paralysis in poultry so I am giving him brewery yeast. Hopefully that might help a bit. Any help/suggestions will be greatly appreciated. Thanks in advance.