HUMANE TREATMENT OF ANIMALS USED IN RESEARCH 14J 
carefully this objective can more easily be realized. 
Considerable progress in estimating the space and 
environmental requirements of experimental animals has been made 
in the past few years. Much empirical information has been 
gathered by surveys of outstanding installations. However, there 
has been too little scientific research in this area and many 
of our present practices should be documented. Investigations 
of these problems should be encouraged specifically; the 
talents of biological and physical scientists, and those of 
specialists from architectural and engineering fields should be 
brought to bear on the problems of the laboratory animal envi- 
ronment . 
The Federal government makes significant contributions 
to animal care in research grants. Long range savings in re- 
search grant expenditures for animal care almost certainly 
could be realized if specific grants were made for the construc- 
tion and equipping of modern experimental animal facilities 
where needed. Such facilities should provide for an increase 
in use of animals during the next several years. In many of 
the laboratories visited the site visitors noted that old 
animal quarters have not been vacated when new facilities were 
completed; but have been continued in use because of the 
demand for animal housing. 
It cannot be emphasized too strongly that the re- 
search budgets should include adequate funds for the normal 
maintenance of animal care facilities. Specific budgeting 
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