16 
BULLETIN 301, U. S. DEPARTMENT OF AGRICULTURE. 
healthy horses, old sheep that can not be fattened for mutton, all of 
which, when slaughtered, make good and cheap meat. Wherever 
available, whale meat is used extensively. Woodchucks and rabbits, 
freshly killed, are always welcome in a fox yard. When cheap meats 
fail, beef and poultry are used. 
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Fig. 14. — Plan for square detached yards; dens and doors in alleys. 
Fortunately, foxes do not need meat every day. Some keepers 
feed it but two or three times a week. Young foxes are not allowed 
meat until they are four months old, as it is likely to cause rickets. 
Milk, with some sort of bread or cooked mush, is the standard food for 
old and young. Foxes which are fed twice a day usually have meat 
in the morning and bread or mush and milk at night. In summer the 
proportion of meat is less than in winter. When smelts or trout can 
be had they are frequently substituted, but fish is not considered 
