GUAM AGRICULTURAL EXPERIMENT STATION. 



9 



almost invariably castrated. The result of this system is the reten- 

 tion in general of the more poorly developed bulls for breeding 

 purposes. 



The Guam type is of the straight-backed, humplesstowrws species; 

 but individuals showing distinct indications of the presence of zebu 

 blood are occasionally observed, pointmg to the probable introduction 



8473°— 13 2 



