The rabbits have eaten pretty much everything in the colony so now it's mostly exposed soil which isn't good. We have some ideas on how to keep more plants growing in the colony that we will hopefully try next year.
We haven't had much trouble with parasites, pests, or disease but the rabbits have only been in the colony for 3 seasons. We may run into trouble down the road.
I don't really know how to figure out the appropriate size for a colony. We just put rabbits into a system we already had to see what would happen and it worked.
Basically just used permaculture to tell us how to best utilize our rabbits and the area that we were growing the cannabis in.
The system utilizes a ton of permaculture principles:
Integrate rather than segregate (cannabis and rabbits in same place)
Value the marginal (used a failed hugel mound as burrows)
Slow and small solutions/change (built the system over the course of a couple years)
Obtain a yeild
Use and value renewable resources/materials (used fencing we already had)
Catch and store energy (positioned high on slope to manage nutrient flows)