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PRODUCTION OF OVOGONIA BY GERMINATIVE EPITHELIUM OF THE OVARY AT SOME MAMMALIA AND BIRDS

1993; UNIVERSIDADE FEDERAL DE SANTA MARIA; Volume: 23; Issue: 3 Linguagem: Inglês

10.1590/s0103-84781993000300018

1678-4596

Mariana Şincai, Adrian Marcu,

Animal Genetics and Reproduction

The studies were effected on ovaries from sows, cows, bitches, dous and hens. Our investigations revealed the generation of cellular rows of germinative epithelium into the cortex not only during the embrionary period but also in the adult ovary. The histological investigations revealed an intense proliferative process of the germinative epithelium of adult ovary which generated groups of ovogonia under the lamina basalis. From ovogonia developed oocytes and then ovarian follicles. The cause for the proliferation of ovary germinative epithelium could be: the multiple folliculary dehiscences, the premature degeneration of ovarian follicles and formation of the corpus luteum, phenomena that reduce continually the number of embrionary ovogonia.