The development of strains of white Leghorns genetically resistant to lymphomatosis.
D000818:Animals; D001353:Avian Leukosis; D001717:Birds; D002645:Chickens; D040941:Heredity; D006801:Humans; D007109:Immunity / Q000235:genetics*; D008460:Meat; D011200:Poultry; D011201:Poultry Diseases
FOWL/diseases; IMMUNITY/heredity; LYMPHOMATOSIS/of fowl