370 



CARE OF THE GROWING STOCK 



on the range where crowding is detrimental and results in stunted 

 birds and slow growth. When the chicks come from the brooder, 

 any weak ones, whether due to faulty environment or to lack of 

 inherited vitality, should be disposed of as broilers. The remainder 

 should be provided with ideal environmental conditions. 



Photo by courtesy of A. G. Philips, Perdue University. 



Fia. 171. Rearing chicks under intensive conditions on open range. A, Cornis useful 

 to provide shade while the trees are small. B, An orchard of large trees supplies plenty of 

 shade. The birds check the ravages of insects. 



The maintenance of their vigor is essentially within the control 

 of the poultryman. 



Environmental conditions can be conveniently grouped for dis- 

 cussion under five heads: (1) Free range; (2) green feed; (3) 

 shade; (4) housing; (5) management. 



Free Range. The best growth and the most vigorous chicks 

 can only be realized by giving the growing birds an abundance of 

 free range (Figs. 170 and 171). Overcrowding, both as to area of 



