Hite, M., Hanson, H. M., Bohidar, N. R. et al. 1977. Effect of cage size on patterns of activity and health of beagle dogs. Laboratory Animal Science 27, 60-64.

The results indicate that beagle dogs bred for laboratory purposes were not affected by the two different size [barren] cages. Dogs in the larger cages did not utilize the additional floor space which was three times the area of the standard size cage.