39© ENTERO-HEPATITIS IN TURKEYS 



cecal disease in turkeys in which the Hver lesions seem to be 

 absent. The lesions in the liver and the presence of the 

 microparasite, as previously described, are sufficient to 

 differentiate this disease. 



§ 303. Prevention. The present knowledge of this 

 disease shows that the parasite is transmitted directly from 

 diseased to healthy turkeys. This suggests that the first pre- 

 caution is to avoid the entrance of diseased or seemingly 

 healthy turkeys from a diseased flock into a healthy one. 

 The discover}' of Chester indicates that a like precaution must 

 be taken with reference to fowls. If the disease exists the 

 best, although most radical, method as suggested by Smith is 

 the total destruction of the affected flock, thorough disinfec- 

 tion of the roosts and droppings under the same, and the intro- 

 duction of health}- turkeys. 



RKFERENCES 



1. Chester. Report of the bacteriologist of the Del. College 

 Agric. Exp. Station, 1899-1900. (C. reports disease in chickens). 



2. Curtice. Notes on experiments with blackhead of turkeys. 

 Circular No. iig. Bureau oj Animal Industry, 1907. 



3. CuSHMAN. Nature of blackhead in turkey. Report R. Island 

 Agric. Exp. Station, 1894, p. 199. 



4. MooRE. The direct transmission of infectious entero-hepatitis 

 in turkeys. Circular No. 5, Bureau of Anitnal Industry, 1896. 



5. MuSGRAVE AND Clegg. Amebas : Their Cultivation and Etio- 

 logic Significance. Bulletin No. iS. Bureau of Government Labora- 

 tories, Manila, 1904. 



6. Smith. Infectious entero-hepatitis in turkeys. Bulletin No. 

 8, U. S. Bureau of Animal Industry, 1S95. 



