SUCCESS IN POULTRY CULTURE 
dairy cow apply also to the egg-laying hen. 
A hen that is best bred for meat produc- 
tion will never make a good layer. The 
hen that lays from two hundred to three 
hundred eggs in a year must have a body 
that is bred for that purpose. She must 
have a large craw in which to store food; 
she must have a large gizzard in which to 
grind and prepare that food for diges- 
tion; her digestive organs must be power- 
ful, strong and ample, so that she can 
digest and prepare large quantities of 
food for assimilation; her lungs must be 
large and powerful, in order to oxydize 
the large amount of blood necessary for 
the production of such a large number of 
eges; she must have a large and powerful 
heart to pump that blood through her 
arteries and veins at the proper pressure; 
her organs of reproduction must be large, 
active and strong, and all of her other 
vital organs in proportion; and to give 
room for all of these large and powerfully 
developed organs she must have a deep, 
long and wide body, with well-sprung 
ribs; she must be very active and full of 
life; her legs must be rather long and 
slim, with a well-muscled thigh on which 
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