XLIV. 

 PARASITES AFFECTING CATTLE. 



Parasites very seldom trouble cattle. A tapeworm known by 

 the name taenia expansa sometimes affects cattle. It does not 

 cause much harm. They are found in the intestines, and some- 

 times fifteen feet in length. 



Treatment. — Give male shield fern, one ounce, with oil. An 

 ounce of areca nut, in oil, may also be tried. Turpentine, three 

 ounces in oil, may be given with good results in some cases. 



CYSTICERCTJS BOVIS. 



This parasite is the cause of measles in cattle. It lives in the 

 muscles of the ox, may be found in the ptcragoid muscle in the 

 heart and in the diaphragm. 



Life History. — If the parasites be eaten and taken into the 

 stomach, they then separate and locate in the intestines of man. 

 They are then passed from the man, and the ox takes in the eggs 

 and they find their way into the muscles. 



Symiptoms not well defined. Xo treatment. 



FASCIOLA HEPATICA. 



This is a round worm. It is the cause of rot in the liver of 

 sheep. The disease is found along rivers, when they overflow. 



SvMF'ToMs, — The only syiii])tom noticed is the sudden loss of 

 flesh after rapid improvement for a month or two. 



Treatment. — Putting the aniujal on other pastures, on high 

 land, if possible, is about all that can l)e done. 



STRONGYLUS MICRURUS. 



These parasites generally become encysted in tlu' lung tissue. 

 Young animals are aff'ected much more commonly than adults. 



(473) 



