DIFFERENCE IN SUSCEPTIBILITY TO CATTLE PLAGUE. 



Table 8. 



431 



No. of animal. 



Quantity Quantity Results 

 of V. B. of serum, results. 



39 



40 



41 _ . - 



ec. , ec. 

 0.5 1 None. 

 .5 10 

 .5 20 



• 



1 

 Died. 



Lived. 



Lived. 



Lived. 



Lived. 



Lived. 



42 L___. 



43 



44 



.5 

 .5 

 .5 



30 

 40 



.50 



The results in Table 8 show that the control died and all the Indo 

 China heifers lived. (See charts 39 to 44.) 



Test 9. 



Indo-China heifers Xos. 46, 47, 48, 49 and 50, controlled Ijy Batanes 

 bnllock No. 45, were tested for immrmity toward cattle plague. Each 

 animal was inoculated with 2 cubic centimeters of virulent peritonea] 

 fluid (blood was not at hand). 



Table 9. 



No. of animal. 



Quantity 

 of fluid. 



Results. 



45 -- 



cc. 

 ■2 



2 



2 



2 



2 



2 



Died. 1 



Lived. 



Lived. 



Lived. 



Lived. 



Lived. 



46 



47 



48- -. 



49 



50 .. ■ 





Table 9 shows the results obtained. The control died, while the 

 Indo-China heifers lived; each, however, showed a moderated tem- 

 perature reaction. (See charts 45 to 50.) 



SUMMARY. 



In summing up the results of other investigations and those reported 

 above, it is found that cattle vary greatly in susceptibilit}' to cattle 

 plague. In India the cattle on the plains are resistant while those on 

 the mountains are highly susceptible. 



Philippine cattle from noninfected districts are higlily susceptible 

 and the carabao, as shewn in Tests 3 and 4^ appear to be more resistant 

 than the Batanes cattle. 



Cattle imported from ludo-China are liighly resistant to cattle plague. 



