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Science 6 June 1980:
Vol. 208. no. 4448, pp. 1173 - 1174
DOI: 10.1126/science.7375927
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Articles

Science, Vol 208, Issue 4448, 1173-1174
Copyright © 1980 by American Association for the Advancement of Science

articles

The fetal sound environment of sheep

SE Armitage, BA Baldwin, and MA Vince

Hydrophones implanted inside the intact amniotic sac recorded sounds available to fetal lambs. Unlike recordings made from outside the intact amnion in human subjects, sounds produced at levels similar to normal conversation from outside the ewe were picked up without masking by maternal cardiovascular sounds. Noises from inside the mother were intermittent and linked to her activity.


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W Lippe and E. Rubel (1983)
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