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Building Unity Farm - Manure and Fly Management

Posted Sep 20 2012 6:00am

We have 50 animals at Unity Farm - alpacas, llamas, chickens, guinea fowl, rabbits, cats, and livestock guardian dogs.

Our "inputs" are second cut orchard grass hay, multi-grain chicken feed, a high protein game bird feed for the guineas, and various forms of kibble for the dogs and cats.

Our output is compostable manure.

Here's what we've done.

For the chickens and guinea fowl
We created a 3 stage composting area and a mulch storage area, using compost bins made from lobster trap wire.

Every Tuesday we clean the coop and add the mixture of manure and wood shavings to the first compost bin.   We add water to the bin so that mixture is moist but not soaked.

Every morning I turn the compost and after a few days, steam begins to rise from as the bacteria break down the mixture of carbon (wood) and nitrogen (manure).   After a week, we move the compost from bin 1 to bin 2, and add fresh manure and wood to bin 1.  After another week, we move bin 2 to bin 3.   After another week, we move bin 3 to the mulch storage area.   From start to finish we get complete hot composted mulch in about 30 days.    That mulch is providing the foundation for our apple orchard, which we'll plant this fall (Empire, Macintosh, Russet, Honeycrisp)

For the alpaca/llama
We created a 16x16 foot manure management containment area 4 feet tall.  Every morning we clean the stalls and paddocks using a Durafork and Muck bucket

"Llama beans" provide the nitrogen and hay/straw from the stalls provides the carbon.   We moisten this mixture and turn it frequently.   The management management area generates a fair amount of heat and with each new addition we mix the old and new, encouraging and active break down process.  

One side effect of all this manure management is flies.   They congregate around manure piles and lay their eggs in the cooler edges of the compost.   What have we done to manage flies?

1.  Prevent them from laying eggs in the first place - keep the compost hot!

2.  Once laid, prevent them from developing - we use parasitic wasps that are too small to bother humans.      Their offspring eat fly larvae

3.  For mature flies that escape our first two strategies, we use two types of fly traps - fly tapes and a handmade cedar fly trap that uses yeast to attract flies

With these three approaches, no flies bother our animals at all.

Although Unity Farm is intended to be a sanctuary for animals and an orchard/blueberry patch, it's also a compost factory, which will ensure all our hay growing and fruit/vegetable growing is very productive.
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