I am raising chickens in an area where a chemical plant explosion more than 20 years ago deposited Dioxin in a plume across the S & SE parts of town. We are on the edge of DO NOT EAT advisory levels.
http://www.becnet.org/sites/default... 2004.pdf#overlay-context=dioxin-butte-county
Can you imagine? And honestly we had no clue that Dioxin was dispersed widely here, or that our chickens would bio-accumulate this toxin and deliver it in our egg yolks so it can bio-accumulate in our fatty tissues. Thankfully I discovered this fact when researching and planning for our laying hens! Many of my free-ranging fantasies died that day.
But it's not all bad news!
Instead of dwelling on what we can't do... I keep looking for what we CAN do
Keeping the girls off the native soils prevents exposure... of course I don't want to "keep" anything in a suspended cage 24/7 :/ and happy chickens need to scratch and peck.
I purchased 8 & 10 month old dual purpose hens from well outside the exclusion zone (20 miles away LOL). Five hens occupy a 4'x5 'coop and attached 6'x12' run.
My current scheme is to raise the soil level inside the run by 6-8" with compost(ing) fill to elevate the run above the native soil & facilitate drainage/runoff during storms. It starts with straw & or leaves heaped into the run as a deep litter and green wastes are added (chick manure, veggie scraps, garden weedlings, etc). It will need to be mucked out occasionally and refilled with fresh leaves/straw, at which point the "hot" compost & chick manure will go to a resting pile outside the run. Finished compost will be used in garden beds.
I do have a 20x50 raised garden plot that is fairly secure (4' tall chainlink) & has beautiful "fill" soil brought in from afar, this is now the free-range-field-trip zone when weather and plantings permit.
So composting up to 8 inches deep in the run is what I'm doing. The girls seem to like it so far. Any tips for preventing problems with a in-run compost pile? I'm thinking keep a dry to to green ratio 50/50 or slightly drier.
In the coop itself & nesting boxes is 3-4" pine/cedar chips. Not sure if I should toss the coop litter into the run or start a separate pile? Guess it would depend on how messy the litter is compared to how wet/dry the composting run mix happens to be. I am not committed to the wood chips in the coop, even though I haven't had to do anything but add a few scoops in two weeks. I am considering other options (sand? pellets?) & just using a kitty litter scooper to tidy up when tending feed & water.
Appreciate any input/opinion/insight/ or advise.
jj