PARASITOLOGY. 



141 



intestinal tract are blood suckers ; they wound the 

 mucous membrane and suck the blood; this adds to 

 the irritation and produces anemia; the symptoms as 

 noted are diarrhoea, thirst, loss of appetite, unthrifty 

 coat, anemia and possibly death. 



Treatment .—yi2,XYy drug's have been tried with 

 more or less good results ; areca nut, santonin, ka- 

 mala, etc. Good results will be obtained by fasting- 



Fig. 51— Oesophagostoma Inflatum. Caudal extremity, female 



a, Sharp terminal point. b. Anus. 



Photomicrograph, 1 x % 



the animal for 24 hours, then give one and one-half 

 pounds of salts followed by from two to six ounces 

 of gasoline; calves must receive a proportionately 

 smaller dose; for large bunches of cattle sulphate of 

 iron and salt kept constantly before the animals wil) 

 be effectual in destroying many of the worms. By 



