The federal National Party in NSW is united against the Baird government's plan to abolish greyhound racing as senior Coalition figures worry that anger in regional areas at the dogs ban, combined with the recent focus on same-sex marriage, is weighing on the poll-challenged Turnbull government.

Fairfax Media has spoken to every NSW National in the federal Parliament or their office and found blanket opposition to the state government's plan to shutdown the greyhound industry.

Some Nationals have gone on the record for the first time with their view that NSW Nationals leader Troy Grant and Premier Mike Baird should retreat from their vow to wind up the controversial $350 million industry from July next year.

Nationals leader Barnaby Joyce, who has not read Michael McHugh's damning report into greyhound racing and said he has "no intention" of doing so, conceded the political fall-out has leached from state politics into the federal sphere.