Histopathology proved a sensitive tool to detect adverse effects of environmental chemicals on testis morphology and function in Japanese quail even if there was no evidence of reduced fertility. This became apparent in one-generation studies with the fungicides vinclozolin and epoxiconazole
in which microscopic findings, such as atrophy or epithelial degeneration, paralleled a reduction in spermatid count whereas testis weight was not altered and reproductive success not compromised at the same dose levels. In a study with methyl testosterone in which fertility was in fact reduced,
lower spermatid count was accompanied by a strong decrease in testis weight. Histological examination of the testis and counting of spermatids might be suitable and sensitive methods to elucidate the mechanism if a male-mediated decline in reproductive success is suspected.
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Document Type: Research Article
Publication date: 01 January 2010
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Avian Biology Research provides a forum for the publication of research in every field of ornithology. It covers all aspects of pure and applied ornithology for wild or captive species as well as research that does not readily fit within the publication objectives of other ornithological journals. By considering a wide range of research fields for publication, Avian Biology Research provides a forum for people working in every field of ornithology. The journal also includes sections on avian news, conference diary and book reviews.
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