So long as the OP does succeed is what matters. People with success at this need to be the ones providing advice, not those that have failed or have no experience in the matter.
@MC Doodle, your pup does like my English Shepherds do when at similar age. I keep up interactions but only while supervised. The pup(s) are penned so they are around chickens at all times although onot always able to get at them. Each day the pup is released for supervised interactions with the...