Ours are defined, but I do just about all chores
Hubby works a 50 plus hour week, so I shop, clean, cook, garden, feed, clean barns, doctor animals, budget, pay bills, laundry, and, and, and.
On the weekends and spare time he does the field work.
We used to both do the full time work, live in a apartment, split chores thing, but with the bigger farm this way works best for us now.
KJ