1. The relation of nutrition to egg production and hatchability in chickens;Bethke;I. Effect of protein supplements and alfalfa meal. Poultry Sci.,1946
2. The relation of nutrition to egg production and hatchability in chickens;Bethke;II. Effect of choline chloride, methionine, and certain animal and marine products. Poultry Sci.,1946
3. Effectiveness of dietary supplements in increasing hatchability of eggs and viability of progeny of hens fed a diet containing a high level of soybean oil meal;Bird;Poultry Sci.,1946
4. Production and hatchability of eggs as affected by different kinds and quantities of proteins in the diet of laying hens;Byerly;Jour. Agr. Res.,1933
5. Effect of diet on egg composition. II. Mortality of embryos in eggs from hens on diets containing protein supplements of different origin;Byerly;Jour. Nutrition,1933