| The small bowel showed 5 atretic lesions of the jejunum and absence of the dorsal mesentery. |
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| Moreover, the number of follicles that undergo yolk deposition commonly exceeds number of eggs actually laid, which suggests that unlaid yolks become atretic. |
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| In a more advance stage, an atretic follicle is easily distinguished without examination of its internal structure by its deformed or shrunken appearance. |
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| New POFs are easily identifiable, but those that have degenerated are difficult to distinguish from atretic follicles. |
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| Granulomatous inflammation and fibrosis occurred in association with dead worms and, occasionally, atretic follicles. |
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| However, in July and August, their prevalence was low, whereas that of fish with ovaries containing substantial numbers of atretic yolk granule oocytes was high. |
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| Although atretic oocytes can be identified with the stereological method, oocytes that are destined for atresia will be counted, causing fecundity to be overestimated. |
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