SYSTEMS OF POULTRY KEEPING 87 



Comparison of extensive and intensive systems. The object of 

 comparison of typical extensive and intensive methods and systems 

 is to determine the values and applications of each. As indicated 



FIG. 90. Colony houses placed end to the road, with yards running from road 

 (Photograph from E. T. Brown, London, England) 



in the statement of the present attitude of poultrymen toward the 

 colony system, the best working system will in most cases combine 

 extensive and intensive methods. These methods, while different 



FIG. 91. A Massachusetts farmer's adaptation of idea shown in Fig. 90 

 Houses (with yards) on both sides of the road 



in many points, are not mutually exclusive, but present the ex- 

 tremes, between which there may be as many grades of the two 

 in combination as there are persons using them. 



The advantages of the extensive or colony system are: 



i. Conditions most favorable to poultry at all stages of growth. 



