POULTRY DISEASES AND THEIR TREATMENT. 



83 



Dispharagiis iiasiifiis. about ^4 inch long, occurs in the walls 

 of the gizzard of fowls. It sometimes becomes so numerous 

 as to cause serious loss. 



Hctii-akis pcrspifillnm, from ij>'2 to 3 

 inches long, is very common in the intes- 

 tines of fowls. They sometimes become 

 ^•erv numerous and may become rolled into 

 rather large balls which obstruct the pas- 

 sage of the food. 



Several other species of the geiuis Hctcr- 

 akis also infest fowls and other poultry. 



Diagnosis. — The symptoms of round 

 worms are similar to those of all worms 

 (cf. p. 75). There is evidence of indiges- 

 tion. The comb becomes pale and there 

 may be diarrhea. 



Treatment. — The remedies mentioned on 

 p. 79 for tape worms are also useful for 

 round worms. The remedy most com- 

 monly advised is to give 2 grains santonine 

 for each bird. Dissolve this in water and 

 use to mix the wash. As recommended on 

 p. 79, all droppings should be collected and 

 examined, also put out of reach of the 



bil-jjj^ Fig. 10. Hctcrakls 



Vale recommends the following: "Beat /"'"/"■'■'""'"■ 



, . . , , ^ , ^ ., a, male, b, female, 



a new laid eg"g with i tablespooniul of oil ,t^ o 1 



°° , '^ X2. (From Sal- 



of turpentine and mix thoroughly by shak- mon) 



ing. Give a teaspoonful of the mixture 



night and morning for a few days ; or divide % of an ounce of 



areca nut in powder, into 4 parts, and give I part each morning, 



fasting, with a dessertspoonful of sweet oil 2 hours after each 



powder." 



Flukes. 



Flukes or trematode worms are small, flat and usually oval- 

 shaped. Fig. II gives a fair idea of the appearance of these par- 

 asites. 



