The power or ability of a hen to lay a large number of eggs or the lack of that power or ability resulting in few or no eggs is not confined to the individuals of anyone breed or flock. Feeding, housing, and general care of the fowls are not the only causes of low production in certain individuals. It is often in the makeup of the hen herself; she could not be a heavy layer under any condition. High and low producers are found in every flock.
An accurate method of obtaining the daily individual records of each bird is the only sure way to pick out the naturally poor layer. Only the very best hens should be used as breeders, whereas the poor layers should be sent to market as soon as they can be found. Thousands of fowls that do not lay enough eggs to pay for their feed are kept each year in Utah.
Alder, Byron and Egbert, A. D., "Bulletin No. 162 - A Quick Method of Obtaining Accurate Individual Egg Records Without the Trap Nest" (1918). UAES Bulletins. Paper 128.