How long does rabbit feces and urine take to break down in soil?

I have 3 indoor rabbits and want to construct a sustainable soil litter box. I am trying to find out how big to make it and how much soil to use and if it will even work. I wonder if it will smell if I keep turning over the soil and whether or not I should add earthworms to the mix.How long does rabbit feces and urine take to break down in soil?
You need to make it the same size as the cage as far as length and width. Then it needs to be at least 12 inches deep to allow plenty of depth for the worms to burrow down in. Then you'll need to water the soil somewhat regularly so it doesn't get too acidic from the urine. Throw red worms in the soil and mix the manure into the top soil about once a week. Only use red worms, they are the only type of work that will reproduce and break down the manure well.





I would recommend throwing the manure outdoors. The worms should help keep the smell down. But even with worms ammonia can build up indoors.How long does rabbit feces and urine take to break down in soil?
The first part is difficult to give a precise answer to; it varies from rabbit to rabbit and even pill to pill, depending on the food source provided. Some break down quickly and some take a while. What I spread on my garden will be mostly dissolved and gone by the time I get ready to spread more in the fall, but there will still be some that are whole pellets. As for the size of your sustainable soil box: with three rabbits it will need to be fairly large. Estimate 1 cubic foot per month per rabbit, plus the soil you add, if any. Yes, there will be some smell, although it isn't overpowering or offensive to most people. Adding worms, particularly red worms, will speed the process along and can provide an excellent return by selling them for fish bait. They can also be transfered to your garden, along with the composted manure, to aid in aeration of your soil. Of course, you can add the manure to your garden without composting, too. Rabbit manure does not require composting before use as a fertilizer, but may be composted if desired.





Good luck and enjoy!
The simple answer is to collect the pee and poo under the cage then dump it into your compost bin.





Now go drink a beer and relax.