The people I worked with in South America would typically cull about 9,000 hens per year (1/3 of their flock). I once accompanied the owner on a 2,000 bird culling. As we walked through the hen houses, he would just point to a bird, and the helpers would put her in a holding pen, ready for sale/slaughter. After culling 2,000 hens, his egg production for the entire next week was down about 200 eggs. He certainly had an "eye" for it. His only comment was "I should have done it a few weeks ago."
That poop one was fascinating, I've kept hens for 4 years and am embarrassed to say that most of those healthy ones I thought were questionable. The shed intestinal lining one was particularly interesting, I've seen that just this week and have put them on Flubenvet.
I always thought I was doing a crap job of looking after my girls, I'll be sure to tell them how lucky they are in the morning
Hello by the way!
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