Abstract
PELVIC relaxation in pregnant females has been studied for several species of small animals and for primates1. Experimental investigations on the hormonal control of this process in mice and guinea pigs are encountered frequently in the current literature. Less attention has been given to this aspect of reproductive physiology in farm animals. Work is at present in progress at Ruakura on pelvic relaxation in sheep. Study of the factors involved are important in the understanding of parturition problems such as dystocia and vaginal prolapse.
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References
Hisaw, F. L., and Zarrow, M. X., “Vitamins and Hormones”, 8, 151 (Academic Press, Inc., N.Y., 1950).
Bassett, E. G., Sewell, O. K., and White, E. P. (in the press).
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BASSETT, E., PHILLIPS, D. Pelvic Relaxation in Sheep. Nature 174, 1020–1021 (1954). https://doi.org/10.1038/1741020a0
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DOI: https://doi.org/10.1038/1741020a0
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