COLLEGE OF AGRICULTURE
COLLEGE OF AGRICULTURE
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农学院
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Robert Garrott
中科院分区：
文献类型：
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作者：
M. Herrygers;J. Berardinelli;Robert Garrott
为了管理和研究目的，野生动物管理人员通常会在捕获大角羊和其他有蹄类动物时抽血并采集血清。血清样本通常会提交给州立牲畜实验室，由实验室进行一系列检测，以了解牲畜与各种重要致病病原体的接触情况，为管理人员提供重要的见解。野生动物管理者也将受益于类似的程序，可以提供繁殖、营养和生理状态的评估。这项初步研究的目的是评估蒙大拿州和怀俄明州大角羊在繁殖季节期间和之后的怀孕率、能量相关代谢物和激素，以评估羊群的总体“健康”状况。代谢物和代谢激素经常被用于家畜的营养、繁殖和能量平衡评估，并可能为野生动物管理者提供同样的见解。在2014年12月至2015年3月期间，从13个畜群中采集了240只大角母羊。检测孕酮（P4）和妊娠特异性蛋白B (PSPBs)，评估生殖周期和妊娠情况。还对非酯化脂肪酸、胰岛素、三碘甲状腺原氨酸和甲状腺素进行了测定，这些代谢产物和代谢激素表明动物的营养和能量状态。我们将介绍这项初步研究的结果，并讨论怀孕率、能量相关代谢物和激素之间的关系，以及如何利用它们为野生动物管理提供信息。
Wildlife managers routinely draw blood and harvest serum when bighorn sheep and other ungulates are captured for management and research purposes. Serum samples are routinely submitted to state livestock labs that perform a panel of assays to access exposure to a variety of important pathogens that cause disease, providing managers important insights. Wildlife managers would also benefit from similar procedures that could provide assessments of reproduction, nutrition, and physiological status. The objectives of this preliminary study were to evaluate pregnancy rates, energy-related metabolites and hormones among herds of Montana and Wyoming bighorn sheep during and after the breeding season in order to assess the general ‘health’ of herds. Metabolites and metabolic hormones are frequently used in domestic animals to evaluate nutrition, reproduction and energy balance, and potentially may provide the same insights in wildlife for managers. A total of 240 bighorn ewes were sampled from 13 herds between December 2014 and March 2015. Samples were assayed for progesterone (P4) and pregnancy specific protein B (PSPBs) to assess reproductive cycling and pregnancy. Assays were also performed for non-esterified fatty acid, insulin, triiodothyronine and thyroxine which are metabolites and metabolic hormones that indicate nutritional and energy states of animals. We will be presenting the results of this preliminary study and discussing the relationship between pregnancy rates, energy-related metabolites and hormones and how they might be used to inform wildlife management.