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Microsurgical transection and anastomosis of the left isthmus in 7 rabbits caused fertility to be reduced 40%. Following rebreeding artificial eggs were introduced into the anastomosed and control oviducts. Sixty-three to 65 hours after mating, direct in vivo observations disclosed varied forms of motion of the artificial eggs within the isthmus, including both small oscillations and occasionally, large precipitous excursions covering more than 1 cm. Subsequent clearing of the genital tracts revealed that the anastomosis in the isthmus had detained most of the natural and artificial eggs, whereas both forms of ova were predominantly past the equivalent site on the control side; yet all anastomosed oviducts were fully patent. We conclude that the decreased fertility after isthmic anastomosis is due not to a physical obstacle but to an inability of the isthmus near the anastomosis to dilate as do other regions of the tube.
S A Halbert, and
P F McComb, and
R J Bourdage
December 1979,
Fertility and sterility,
S A Halbert, and
P F McComb, and
R J Bourdage
January 1983,
Journal de gynecologie, obstetrique et biologie de la reproduction,
S A Halbert, and
P F McComb, and
R J Bourdage
February 1974,
Canadian journal of physiology and pharmacology,
S A Halbert, and
P F McComb, and
R J Bourdage
June 1981,
Prostaglandins,
S A Halbert, and
P F McComb, and
R J Bourdage
June 1984,
Biology of reproduction,
S A Halbert, and
P F McComb, and
R J Bourdage
April 1979,
Journal de chirurgie,
S A Halbert, and
P F McComb, and
R J Bourdage
February 1987,
The Journal of reproductive medicine,
S A Halbert, and
P F McComb, and
R J Bourdage
January 1992,
Zentralblatt fur Gynakologie,
S A Halbert, and
P F McComb, and
R J Bourdage
December 2013,
Reproduction in domestic animals = Zuchthygiene,
S A Halbert, and
P F McComb, and
R J Bourdage
January 1993,
Obstetrics and gynecology,
