174 THEORY AND PRACTICE 



BOTRYOMYCOSIS. 



Closely related to biirsatti is the disease called botryomycosis 

 and it is often difficult to differentiate them. In botryomycosis 

 the tumors which go on to ulceration are due to the invasion of a 

 microorganism called the botroyomyces. The tumors which are 

 formed are inflammatory growths, often of very large size. 

 Scirrhous cord may be caused by this microbe. The tumors 

 should be removed with a knife and all the parts of the growth 

 thoroughly cut out as the botryomyces invade the outer zone of 

 the tissue. In the discharge from the abscess colonies of the 

 microbe may be found but these are the older organisms and are 

 not as active as those in the outer parts of the tumor. The knife 

 seems to be the only treatment, although the summer sore lotion 

 has been tried with some results. The knife should always be 

 applied to scirrhous cord. 



CORN STALK DISEASE. 



Horses and cattle die from a disease known as corn stalk 

 disease when turned into a stalk field in December and January. 

 In these months the disease seems to be prevalent. The animals 

 eat the nubbins and stalks and suddenly they come down with 

 an affliction and next morning are found dead. It is supposed 

 that they get the disease from the corn stalks. Animals that get 

 a mild attack do not die so early but become delirious or at other 

 times may become stupid and finally die in a comatose condition. 

 This shows that the disease is due to some toxin. All animals 

 which contract the disease die from it sooner or later. 



Prevention is better than cure. Remedial treatment seems to 

 be useless. Prevent by keeping the stock out of the fields. Cut 

 the stalks early enough to make good fodder and there will be 

 no corn stalk disease. 



SURRA. 



Surra is a constitutional disease of the infectious type. The 

 infection is not carried from animal to animal but is due to the 



