Premium Feather Member
I think the difference between 100 and 144 is significant.
It is irrelevant to the point I was making -- that my worst layer today was, nonetheless, performing within the target range for flock improvement a century ago. This despite the fact that she was a Brahma, a breed noted for mediocre if not actually poor laying, and that the target flocks were Leghorns, the #1 egg producers of both that era and this era.
interesting point. Do you keep records? Do you know how many each of your hens lay, and for how long they lay and how long they cease? And how old they each are?
I do not keep formal records. But for the first year I had only 5 hens and thus had no problem knowing who was laying and how often.
My Brahma never did better than 4 eggs a week. My 2 Australorps were 6 days out of 7 or 13 out of 14. My SLW was 5-6 per week but was the first to stop to molt. My California White was at least 28 days out of 30 -- having missed no more than 8-10 days in her entire first year of laying and laying a full year before she molted. In her second year I'm still getting 5 white eggs a week (she's my only white layer).
I have to work and thus cannot do a proper productivity study with trap nests and a spreadsheet.
Note: I refer to the Brahma in past tense because I sold her last night -- with full disclosure of her age and egg-laying performance -- to a man who wanted a lawn ornament flock. She's very beautiful and will do well in her new role.