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Discussion

Abstract

Comment: Wagner

I would like to add a couple of comments. In regard to Dr. Marion's presentation, on the persistence of the remnants of atretic follicles, he mentioned that these apparently do not remain in the ewe. We have not done an exhaustive study, but in the postpartum sow it appears that all one finds are the remnants of the zona pellucida from the ovum, with virtually no connective tissue remnants remaining. In fact, there is merely a hole in the ovary containing the remnants of the ovum. Concerning the other comment in regard to the response of the postpartum uterus; in these uteri at about 10 to 14 days, one can almost always find large numbers of polymorphonuclear cells migrating into the lumen. Whether this is a markedly increased response, as one would expect to find in an estrous animal, I have no way of evaluating, but there are certainly large numbers of these polymorphs present and moving into the lumen regularly.