I have acquired an older pekin drake who has bumblefoot. I think he's had it for awhile and the owners were unaware of what it was. They said he has always limped. I have some injectable Naxcel (a type of cephalosporin?) that a farm vet prescribed for a rooster of mine with an infection in his leg. Would this be an antibiotic I could give to my drake? Does anyone know what the dosage would be? Thanks BYC and Ducks!