My wife and I raise purpose-bred American Bullfrogs (Rana catesbeiana/lithobates).
We supply up to 6,000 live Bullfrogs a year to a small but nationwide niche market.
We run our farm year-round on less than 1/4 acre - .1 hectare, of rented ground in zone 6b.
I spend 20 - 25 hrs a week on the day to day operation of our farm/business and my wife spends 3 - 4 hrs a week sorting, counting, weighing, or measuring the Bullfrogs for shipment.
We sell four sizes: Medium, large, jumbo, and super jumbo. They are priced by the each which averages about $20.00, or $45.00/lb - $20.45/Kg.
We have 36 customers, some of them have been with us for over 20 years.
We aren't a completely Permaculture farm, but no herbicides, pesticides, antibiotics, growth hormones, or electricity are used on our farm.
I love this occupation.