GUAM AGEICULTURAL EXPERIMENT STATION. 



25 



"With the exception of one week, during which the pigs in lot Xo. 1 

 were being feci immature breadfruit, the pigs in l)oth lots consumed 

 their feed well. Heretofore no market price has ever been placed on 

 breadfruit in Guam. The cost to a native in producing the 113 

 pounds of gain would be materially lessened. The price paid for the 

 imported feeds is almost prohibitive to anyone in Guam. The pigs 

 in lot Xo. 1 were virtually on full feed while the pigs in lot Xo. 2 were 

 on little better than a maintenance ration. Conclusions will be 

 reserved until the close of the experiment. 



LIVE STOCK DISEASE INVESTIGATIO»NS. 

 CATTLE DISEASES. 



TICK FEV'ER. 



In identifying the tick which infests the cattle of Guam, Dr. B. H. 

 Ransom, Chief of the Zoological Division, Bureau of Animal Indus- 

 try, United States Department of Agriculture, stated: "The ticks 

 from cattle are not distinguishable from Margaropus caudatus, some- 

 times regarded as a variety of the common cattle tick under the name 

 Margarapm annulafus caudatus, and probably are this species. 

 31. caudatus was described from horses in Japan, but its occurrence 

 on cattle in Guam would not be at all unlikely." 



The station has been unable to determine any difference between 

 the ticks infesting cattle and those infesting horses, carabaos, 

 goats, and deer. The effect of these ticks on the cattle of Guam 

 constitutes by far the most serious obstacle in thc^way of the 

 cattle industry. The ticks may be found on the cattle throughout 

 the year. It seems, however, that they are more abundant during 

 the dry season. The serious infestation takes place during the dry 

 season. This may be explained, at least in part, by the fact that the 



