Analysis of the records of 43 Iowa egg producers shows trends in production and income that occured in 1961. The records also furnish guides you can use to judge the efficiency of your own poultry business.
"Egg Production Trends - 1961,"
Iowa Farm Science: Vol. 17
, Article 3.
Available at: https://lib.dr.iastate.edu/farmscience/vol17/iss3/3