100 Diseases of Poultry 



The destruction of the contagion, after it has been intro- 

 duced into a poultry yard, has also been found difBcult 

 or impossible. Some have proposed to dip up and burn the 

 surface soil to a depth of several inches, which might be done 

 with small yards but is impossible with large ones. In most 

 cases the poultryman must be contented with the appli- 

 cation of a layer of freshly burned lime that has been care- 

 fully slaked to a fine, dry powder. After a few weeks this 

 ground should be plowed and another layer of lime applied. 

 The manure which has accumulated should be burned or 

 mixed with lime and plowed into the ground of some distant 

 fields. The wall and floors of the buildings should be cov- 

 ered with a good limewash containing 6 ounces of carbolic 

 acid to the gallon. The fences should receive a coat of 

 limewash. The feeding troughs and drinking vessels should 

 be put into a kettle of boiling water for half an hour. 

 Troughs too large for this should be burned and replaced 

 by new ones. After these measures are adopted, the longer 

 the premises are left vacant the more likely is the contagion 

 to be completely destroyed. The freezing and thawing of 

 a winter and spring will be found of great assistance. In 

 beginning with a new flock the precautions already men- 

 tioned must be adopted to prevent the infection of the 

 premises. 



Cercomoniasis 



This is frequently called " spotted liver." It, like many 

 other liver diseases,' is associated with intestinal trouble, 

 especially severe diarrhea, that attacks poultry during the 

 summer months. The disease is caused by a flagellate 

 micro-organism known as Monocercomonas gallinarum. The 

 post-mortem appearance of the liver in this disease shows 

 usually slightly depressed yellowish necrotic areas or spots. 



