150 The Philippine Journal of Science 19 



Veterinary students reported the prevalence of the disease i 

 the various barrios of Los Bafios as shown in Table 2. 



Table 2. — Showing incidence of foot maggots an 

 Malaquing Bato, Maahas, and San Anto 



ong animals i 

 nio Barrios. 



. Anos, 



Hosts. 



«*» 



Nee.. 



«r 



Carabaos 



- 



m 



1 











18 



8S 



* 





All of the Filipino farmers in different parts of Laguna Prov- 

 ince, to whom foot-maggot cases or the characteristic after 

 effects were shown, have stated that the condition is a rather 

 common one and that often animals are laid up from lameness 

 due to maggots, uod, in the feet. 3 From their descriptions of 

 the infestations and from the fact that they recognized the hoof 

 injuries resulting from such infestations, it is presumed that the 

 cases at the College of Agriculture cannot be considered either 

 unique or endemic. A further fact, brought out in conversations 

 with owners of stock in Laguna Province, was that the number 

 of cases was greatest in the dry season, and this checked with 

 observations made by us on the college herds. This seasonal 

 occurrence may be explained by the fact that during the wet 

 season the animals spend a greater part of their time in mud 

 and water. The mechanical action of the mud would tend to 

 remove the larvae and, perhaps, the eggs. The flies would also 

 have greater difficulty in depositing the eggs. Actually, eggs 

 are much more difficult to obtain in the rainy season. Further, 

 Hereford cattle are much more susceptible to the attacks of the 

 fly than are carabaos. Carabaos will wallow in mud at every 

 opportunity, while Herefords are essentially dry-pasture animals. 

 Still further evidence is offered in the case of the carabao owned 

 by the Forest School of the Bureau of Forestry. This animal 

 has had a continuous series of infestations throughout the dry 

 season No animal in the college herd has had a comparable 

 amount of trouble from this pest. The Forest School carabao, 

 however never wallows in the mud, there being no facilities for 

 this at the Forest School*, while the college animals are pastured 



