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Biology of Reproduction, Vol 13, 495-498, Copyright © 1975 by Society for the Study of Reproduction

Some Physiological Characteristics of Motility in the in vivo Avian Oviduct

J. CROSSLEY 1, A. AYUY 1, , and G. FERRANDO 1

1 Departamento de Ciencias Químicas y Fisiológicas, Sede Santiago Sur, Universidad de Chile


Spontaneous motility was studied in different segments of the oviduct in anesthetized laying hens. Recording balloons were introduced into the lumen of the fimbria, magnum, isthmus and uterus. The frequency (waves/min) and amplitude of contractions (mm Hg) found are: for the infundibulum, 2.0 ± 0.8 and 2.5 ± 0.3; for the magnum, 3.5 ± 0.9 and 2.6 ± 0.6; for the isthmus, 8.1 ± 3.3 and 3.8 ± 1.5; and, for the uterus, 13.3 ± 2.4 and 9.2 ± 2.9, respectively. The removal of the partially formed egg from the lumen of the oviduct did not significantly (P>.05) affect the frequency and amplitude of contractions. When the egg yolk is present in the magnum, the amplitude of contractions is higher in the region of the magnum through which the yolk is passing rather than with the region through which the egg yolk has already passed. It was also found that in the magnum a group of 10 peristaltic waves was followed by groups of 2 to 3 antiperistaltic waves.

Submitted on May 2, 1975
Accepted on August 8, 1975






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