REPORT OF THE BUREAU OF ATttMAL ESDUSTRT. 



179 



ommendations above are directed toward lessening the chances of 

 infection and preserving the health of the animals. 



It is hoped that the gaps in the life history of Tcznia fimbriata, 

 or others of our unarmed tseniae, may yet be filled out. With a 

 knowledge of this history, the methods of prevention would be evi- 

 dent to all. 



The flock-master should take pains to examine the sheep which 

 die and inform himself, as nearly as possible, of the cause of death. 

 In case of the presence of tape- worms, causing sickness, he can soon 

 inform himself of their abundance, of the absence of other disease, 

 and of many other things. He can soon judge whether others of 

 his flocks have them, and can more intelligently set about their treat- 

 ment. A careful study of each case will then place the observant 

 man in possession of many facts which will help him in the proper 

 management of his flock. 



The above recommendations have be^n written with a view of 

 keeping the food and drink of the animals as clean as possible. 

 Other precautions will suggest themselves to the ranchman. 



POST MORTEM EXAMINATIONS. 



The tables herewith presented are the results of post mortem ex- 

 aminations ot sheep, some of which were killed expressly for the pur- 

 poses of investigation. Others were examined while being slaugh- 

 tered for food, either on ranches or at the shambles in Colorado 

 Springs, Colo., while others were performed upon dead sheep found 

 either at or in the vicinity of various ranches. From the wide- 

 spread distribution of the disease, they are such notes as could be 

 taken from nearly all localities, and can not be ascribed to purely 

 local causes. Where the observations were taken from sheep raised 

 in States other than Colorado, the State from which they came is 

 given. 



In addition to the presence of Ta^nia fimbriata, I have noted the oc- 

 currence of Tc&nia expansa, and also of Tcenia marginata, which occurs 

 in sheep in its cysticercal stage. The examinations at the shambles 

 could not be conducted with the same accuracy while hunting for 

 Tc&nia fimbriata; the occurrence of the cysticerci is therefore 

 omitted in the post mortem observations of June 7, 1887, to August 

 15, 1887, inclusive. 



Table A shows that tsenise occur in sheep throughout the year. 

 It also indicates a wide-spread distribution. 



A, 



