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Suppression of oestrus in grouped mice: the effects of various densities and the possible nature of the stimulus

Champlin, A.K.

Journal of Reproduction and Fertility 27(2): 233-241

1971

ISSN/ISBN: 0022-4251
PMID: 5166413
DOI: 10.1530/jrf.0.0270233
Document Number: 508255
Results of tests in which 120 C57BL/6 and 120 BALB/Ci mice were housed 1, 2, 4, 6 or 8 /cage indicated that oestrus was suppressed by grouping, even in pairs. The strains differed in their oestrous response to grouping and in the density at which the suppression occurred; the oestrous cycle frequency of the C57BL/6 decreased with increasing density to 4/cage v 6/cage for BALB/Ci.

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