I clean my coop once a year using my winter coop from Nov 1 to April 20 or so. I use the deep bedding method. I have a large 24x24 foot floor area and I use woodchips, fall leaves and straw through the winter to keep the smell down with lots of ventilation. My windows stay open all winter and...
I have noticed that the blood spots seem to be more common in my heritage breed Jersey Giants compared to my Commercial type layers White leghorns and red sex linked hens