NEUROLYMPHOMATOSIS 



11 



Table 7. — The Transmission of Neurolymphomatosis through the Egg 

 1932 and 1933 Hens and Roosters 



*Hens producing chickens which developed neurolymphomatosis. 



Of the 130 chickens hatched in this experiment, 106 lived to be four months 

 or more of age, 90 showed no symptoms or lesions of disease when necropsied 

 at eight months of age, while 16 developed neurolymphomatosis as indicated 

 in Table 9, and 24 died of causes other than the disease studied. 



The lineal descent of the chickens on the maternal side is indicated in Table 

 9, since each was pedigreed with the number of the hen which laid the egg from 

 which the chicken hatched, with F-l, F-2, etc., added. F-l indicates the first 



