1. The effect of feeding terramycin, furazolidone, and arsenicals to breeder hens;Barnett,1959
2. Effect of an antibiotic on egg production;Branion;Poultry Sci.,1956
3. Some effects of arsanilic acid and/or penicillin upon egg production;Carlson;Poultry Sci.,1957
4. Comparisons of low level nitrofurans with other drugs in egg production;Carlson,1960
5. Antibiotics for laying hens;Couch,1956