Biol Reprod Keystone Symposia Conference on Frontiers in Reproductive Biology & Regulation of Fertility.
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Biology of Reproduction, Vol 12, 249-254, Copyright © 1975 by Society for the Study of Reproduction

Suppression of Reproduction in Water-Deprived Mongolian Gerbils (Meriones Unguiculatus)

PAULINE YAHR 1, and SEYMOUR KESSLER 1

1 Department of Psychobiology, University of California, Irvine, California 92664; and Department of Psychiatry, Stanford University Medical School, Stanford, California 94305


Fertile pairs of Mongolian gerbils (Meriones unguiculatus) were observed for further reproduction when they were water-deprived (lettuce supplied once a week) or when water was provided daily. Water deprivation produced no long-term effects on body weight, but it completely stopped reproduction when both members of a pair or when only the female was deprived. Reproduction continued if only the male was water-deprived, although water deprivation reduced testis, seminal vesicle and ventral scent gland size. Water-deprived gerbil pairs recovered reproductive function when water was provided again. The findings suggest that seasonal variations in water consumption may regulate seasonal breeding patterns in wild gerbil populations and that access to a limited supply of water may also be related to territoriality in this species.

Accepted on September 13, 1974






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Copyright © 1975 by the Society for the Study of Reproduction.