Publications
Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
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plasma levels of sex steroids in the north island brown kiwi (apteryx australis mantelli) in relation to time of year and stages of breeding. | north island brown kiwi (apteryx australis mantelli) have a seasonal pattern of egg laying with a peak in mid to late winter. this study is the first description of changes in plasma steroid concentrations during the annual reproductive cycle of this species. blood samples were collected at intervals over a 2 1/2-year period from a population of kiwi at tangiteroria, northland, new zealand. male kiwi had annual cycles of plasma levels of testosterone and estradiol. mean testosterone levels were ... | 1992 | 1426944 |