Question:  query regarding  some khaki campbell duck 
Answer: generally aduck come into production at the ageof 6-7 month depending upon the management - advance poultry formula plus , pallet feeding should  practise  to fullfil their daily requirement . additionally liver tonic , b complex ,calcium supplement& vaccine [ duck viral enteritis/ duck plague  [dve] & dvh [ duck viral hepatitis ] should be given at the age of 3 month of age