126 DISEASES OF POULTRY. 



found ia small numbers in both the duodenum and 

 colon. The larger and to all appearances the older 

 nodules are found in the ileum near the caeca. 



The only symptom noted in connection with this 

 disease is emaciation in the advanced stages. The 

 affection probably can only be recognized by a post- 

 mortem examination of the affected birds. It is- of 

 particular importance that the principal features should 

 be known, in order to prevent this disease being con- 

 founded with tuberculosis. 



The tapeworm which causes this malady is believed 

 to be the Davainea tetragona, though on account of the 

 unsettled condition of the classification of avian tape- 

 worms it is difficult to make a positive determination 

 of the species at this time. 



No experiments have yet been made as to the best 

 treatment for this form of tseniasis, but the hygienic 

 measures and medical treatment recommended for 

 tapeworms in general are applicable to this, as well as 

 to other species. Vigorous measures should be insti- 

 tuted as soon as the malady is recognized or all of the 

 birds running together will soon become infested, and a 

 long time will be required to eradicate it from the flock 

 and from the premises. 



