107 



Division of Animal Industry 



Honolulu, Hawaii, February 15, 1916. 



Board of Commissioners of Agriculture and Forestry, Honolulu, 

 Hawaii. 



Gentlemen : — I beg to report on the work of the Division of 

 Animal Industry for the month of January, 1916, as follows: 



PROPOSED NEW RULE AND REGULATION. 



I beg to submit herewith copy of a new rule and regulation 

 pertaining to the control and suppression of outbreaks of hog 

 cholera and other swine diseases within the Territory of Hawaii. 

 If the same meets with the approval of the Board, and receives 

 the Governor's signature, it will undoubtedly be of material as- 

 sistance to the veterinary officials in dealing with such outbreaks. 



SORE HEAD IN CHICKENS. 



Since publicity was given to the new treatment for this disease 

 through the official bulletin of this Board, a considerable number 

 of applications have been received from both Hawaii and this 

 island for information and assistance in dealing with such out- 

 breaks. It has, therefore, become necessary to prepare a circular 

 containing instructions as to the treatment as well as the prep- 

 aration of vaccine for the prevention of this disease. 



A number of outbreaks have been attended to in Honolulu and 

 vicinity, from which it has been learned that the disease attacks 

 not alone chickens, but also turkeys and pigeons, in most cases 

 selecting the younger birds for its victims. Though it is too 

 early to make any definite statement, it would, however, seem 

 that the disease, while practically identical in these three classes 

 of domestic birds, is rarely, if ever, transmitted from one class 

 to another. In one chicken yard, for instance, the young turkeys 

 alone are affected, while in a flying coop with homing pigeons 

 only the squabs were affected, although young turkeys were kept 

 in the same enclosure. For this reason it would seem doubtful 

 whether vaccine prepared from the lesions of turkeys would be 

 effective if injected in either chickens or pigeons, and vice versa. 

 In fact, our observations so far seem to denionstrate that to get 

 the best results the vaccine must be prepared from the individual 

 flock which is to be treated. 



While good success has been met with in nearly every case up 

 to this time, it has been reported by Dr. Elliot that the disease has 

 appeared among a flock of young chickens which were injected 

 with vaccine prepared from material obtained from another flock. 

 If similar outbreaks should occur it would seem that fresh vaccine 



