Summary
In the course of histochemical investigations on pre-implanted rat eggs it was found that eggs from animals with vitamin-A-deficiency or -overdosage show an increased number of polar bodies during the first 2 cleavages. Moreover, the polar bodies persist longer than normal.
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Kress, A., Ludwig, K.S. Über die Vermehrung der Polkörperchen während der Segmentation von Ratteneiern bei Vitamin-A-Mangel und -Überdosierung. Experientia 24, 1235–1236 (1968). https://doi.org/10.1007/BF02146642
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DOI: https://doi.org/10.1007/BF02146642