﻿132 The Philippine Journal of Science i9i4 



ant customarily stand on the opposite side of the animal. Other 

 parts of the group of buildings in Plate I, fig. 1, house the office 

 and general workroom. The bottles of blood after drawing and 

 while the serum is exuding from the clot are placed in the 

 stream bed in the inclosed building in the foreground. Adjoin- 

 ing these sheds are others for accommodating animals during 

 immunization, the construction being of the cheapest character 

 and primarily designed merely to afford complete shade. An- 

 other shed in the group shown in Plate III, fig. 1, contains stocks 

 for restraining the animals during injection. The process of 

 injection in this shed is shown in Plate III, fig. 2. 



Serum is all prepared at the central laboratory and all im- 

 munized animals are brought there for bleeding. Immunization 

 is carried on in qther localities, some of them 10 kilometers 

 distant, serum from the laboratory being sent out in demijohns. 

 In every case, the owners of the animals have cheerfully con- 

 structed the necessary sheds. When these are needed, each 

 man brings with his carabao one or two bamboo poles and a 

 bundle of grass, and assists in the construction. 



Each animal immunized is branded on the right shoulder 

 with numbers designating the province and municipality. All 

 animals immunized in Ilocos Norte bear the number 1 and to 

 the side of this is placed a number referring to the municipality. 

 Thus the brand 11 indicates Laoag; 12, Dingras; and 13, Sol- 

 sona; all in Ilocos Norte Province. Further, the animals in 

 each municipality bear serial numbers which are entered on 

 the immunizing records, with owners' names. 



A certificate of immunization is issued for each animal when 

 released. This contains a printed outline of an animal, upon 

 which are indicated brands and other distinguishing marks, 

 together with description, name of owner, etc. 



Animals accompanied by a certificate of immunization are 

 exempted from any quarantine for rinderpest that is enforced 

 by authority of the Director of Agriculture. 



CONCLUSIONS 



1. The writers believe that their experience with simultaneous 

 inoculation with blood drawn in the field has demonstrated that 

 there is no necessity for maintaining an expensive permanent 

 laboratory and herd for the production of antirinderpest serum 

 from hyperimmunized animals. 



2. A radical reduction in the cost of serum production has 



