524 



DISEASES OF CATTLE. 



Adult cattle do not seem to suffer much from infestation with tape- 

 worms, but in calves these parasites may cause scouring and emaciation. 



Tr eatment. — ^Medicinal 

 treatment for tapeworms 

 in cattle is usually unsatis- 

 factory, but the blues tone 

 treatment used for stom- 

 ach worms and mentioned 

 above (p. 522) sometimes 

 expels tapeworms. Arsenic 

 in doses of 1^ to 3 grains 

 has been claimed to give 

 good results in the treatment 

 of calves for tapew'orms. 

 From results obtained at the 

 Oklahoma Experiment Sta- 

 tion in the treatment of tape- 

 worms of sheep it would ap- 

 pear that the efficacy of the 

 bluestone treatment against 

 these parasites may be in- 

 creased by the addition of 

 tobacco. For use on cattle 

 the bluestone and tobacco 

 mixture may be prepared as 

 follows: 13 ounces of snuff 

 or powdered tobacco is 

 soaked over night in about 

 8 gallons of water. To this 

 decoction is added 1 pound 

 of copper sulphate which 

 has been dissolved in 2 or 

 3 quarts of boiling water. 

 Sufficient water is then added to the mixture to make a total of 9^ 

 gallons. The doses of this solution are the same as for the simple 

 copper sulphate solution, described on page 522, namely: 



Calves 3^ to 4 fluid ounces. 



Yearlinsis 6 fluid ounces. 



Two-year-olds and over 12 to 16 fluid ounces. 



ROUNDWORMS. 



A large roundworm {Ascari.^ v'dulonim) measuring 6 to 12 inches 

 in length, sometimes found in the intestines of cattle, especially 

 calves, may cause inflammation and occasionally rupture of the 

 intestine. Infection occurs through the swallowing of the eggs of the 



-A tapeworm ( Moniezia planissima) which infests 

 cattle. 



