"But there should also be discussion about how the farm will function in the medium and longer term from a biosecurity perspective," he said.
"Even relatively simple stuff should be in the plan. For example, if you or a neighbour intends grazing stock in paddocks where there is a boundary fence, you could send them a text. One of you can then put up a break fence to keep herds from direct contact.
"Another example — there should be agreement about service bulls. Will the farm be all AI or will it get service bulls from a farm that fits x and y biosecurity requirements, such as a closed Hereford breeding operation, or an operation that does not bring in dairy beef?
"Or do the two parties agree that's not particularly important."
The advice on the DairyNZ page could be used as a conversation starter and checklist, he said.
"Good due diligence by both parties, and a robust biosecurity plan, will underpin a continuing, viable sharemilking industry," Mr McIntyre said.