Patterns of ovarian and luteal activity in captive and wild Canada lynx (Lynx canadensis)
Patterns of ovarian and luteal activity in captive and wild Canada lynx (Lynx canadensis)
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DOI：
10.1016/j.ygcen.2010.09.003
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发表时间：
2010-12-01
影响因子：
2.7
通讯作者：
Lucas, Jeffrey R.
中科院分区：
文献类型：
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作者：
Fanson, Kerry V.;Wielebnowski, Nadja C.;Lucas, Jeffrey R.
加拿大猞猁面临着一些独特的繁殖限制，这可能对种群生存能力和圈养管理产生影响。本研究的目的是提高我们对加拿大猞猁基本生殖生理的理解。使用粪便激素代谢产物分析，我们建立了规范模式的粪便雌激素（fE）和孕激素（fP）表达圈养和野生雌性加拿大猞猁。我们的研究结果表明，加拿大猞猁有持久的黄体，这是他们的不典型的fP配置文件相比，其他猫科动物。因此，fP对诊断加拿大猞猁妊娠没有帮助。我们还发现加拿大猞猁能够自发排卵。圈养雌性比野生雌性具有更高的fE和fP浓度。这两个群体在2月至4月期间表现出卵巢活动的季节性增加（通过fE测量）。最后，当雌性动物圈养在一起时，有卵巢抑制的证据。(C)2010年爱思唯尔公司版权所有© 2016
Canada lynx face some unique breeding restrictions, which may have implications for population viability and captive management. The goal of this study was to improve our understanding of basic reproductive physiology in Canada lynx. Using fecal hormone metabolite analysis, we established normative patterns of fecal estrogen (fE) and progestagen (fP) expression in captive and wild female Canada lynx. Our results indicate that Canada lynx have persistent corpora lutea, which underlie their uncharacteristic fP profiles compared to other felids. Thus, fP are not useful for diagnosing pregnancy in Canada lynx. We also found that Canada lynx are capable of ovulating spontaneously. Captive females had higher concentrations of fE and fP than wild females. Both populations exhibit a seasonal increase in ovarian activity (as measured by fE) between February and April. Finally, there was evidence of ovarian suppression when females were housed together. (C) 2010 Elsevier Inc. All rights reserved,