1. Relative efficacy of calcium lactate and calcium carbonate in promoting sound egg shells;Balloun;Poultry Sci.,1962
2. Multiple range and multiple F tests;Duncan;Biometrics,,1955
3. Calcium requirement of laying hens;Griminger;Feedstuffs,1961
4. Egg shell quality during hot weather with calcium gluconate in the diet;Heywang;Poultry Sci.,1962
5. Egg shell quality as affected by the addition of bicarbonate to the feed and water;Howes;Poultry Sci.,1966