90 

 DIVISION OF ANIMAL INDUSTRY 



HOG CHOLERA. 



Honolulu, March 12, 1915. 

 Board of Commissioners of Agriculture and Forestry. 



Gentlemen : — I have to report that hog cholera has made its 

 appearance on Maui. Dr. Fitzgerald, under date of Feb. 25, re- 

 porting two small outbreaks, one on the Flaleakala ranch and the 

 other on the Maui Agricultural Co.'s ranch. The infected prem- 

 ises were immediately placed under quarantine and sufficient hog 

 cholera vaccine secured for the treatment and prevention inocu- 

 lation of all affected and exposed hogs. The origin of the out- 

 break remains obscure, no hogs having been introduced from 

 any of the other islands for several months past, nor has there 

 been any transfer of animals between the two places, which are 

 more than seven miles apart. I am therefore inclined to believe 

 that the outbreak is due to a recrudescence of infection already 

 on the premises, which theory is supported by the extremely mild 

 form in which the disease has made its appearance. 



With the timely application of serum there is consequent!) 

 little danger of serious losses, even though it is doubtful whether 

 the established quarantine will prove effective. 



From Hawaii and Kauai no new outbreaks have been reported, 

 one report investigated by Dr. Elliot proving not to be hog 

 cholera. 



On Oahu the disease now seems to be well under control, the 

 fact that no definite case of hog cholera has appeared among the 

 several hundred imported hogs that are being swill-fed ncarScho- 

 field Barracks being almost a guaranty that the disease has either 

 died out or become so attenuated that the animals are able to 

 resist it. 



A few cases of pneumonia have occurred, some among suckling- 

 pigs, and while the post mortem lesions in some of these bear a 

 close resemblance to those seen in swine plague, they are, if of 

 specific origin at all, most likely due to other bacteria such as the 

 pneumo-coccus for instance. In any case every precaution pos- 

 sible has been taken to deal with an outbreak, should it make its 

 ap]K^arance. and in the meantime hog raising is steadily increasing 

 anrl rapidly becoming one of the most important branches of the 

 live stock industry. 



I'.OVIXK TIII5KRCUI-ORIS CONTKOI, WORK. 



Very little testing has been done here during the ])ast nionlli, 

 the semi-annual general ti'st being planned for the middle of 

 March. From Hawaii Dr. j-'.lliot rejjorts the testing of 17 sniall 

 herds with a total of ^K) cattle, among which two reactors were 



