Bedding preferences of pregnant laboratory-reared mice

Pregnant ARS Ha (ICR) Swiss mice were allowed to select from 10 commercially available bedding products for parturition and rearing young. Combinations of bedding materials were most often selected. Products of wood origin were overwhelmingly preferred. Rates for the selection of bedding materials from the 20 tests were Aspen Bed 100%, Cedar Shavings 75%, Pinewood Shavings 45%, Ab-Sorb-Dri 5%, and Stop “O” 5%.