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Physiological condition of female white-tailed deer in a nutrient-deficient habitat type

机译：营养缺乏型雌性白尾鹿的生理状况

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摘要

Physiological and morphological indices are useful for determining condition of Odocoileus virginianus (White-tailed Deer; hereafter deer) and are important for deer management. However, information about deer condition in nutrient-deficient habitat types is sparse. Pocosins have a low nutritional plane and are characterized by deep, acidic, peat soils with a dense shrub layer that provides little or no hard and soft mast. In July 2008 and March 2009, we collected a total of 60 female deer (30 from each period) from a 31,565-ha pocosin forest managed intensively for Pinus taeda (Loblolly Pine) in coastal North Carolina. We recorded whole weight, eviscerated weight, spleen and adrenal gland weights, and kidney fat index (KFI). Abomasal parasite counts (APC) and femur marrow fat index (MFI) were determined post-collection in the laboratory, and blood samples were analyzed for packed cell volume and standard serum chemistries. Serum chemistries were within expected ranges, with the exception of elevated potassium concentrations. The KFI and MFI were within levels reported in the literature, and APC levels did not indicate heavy parasite loads. Spleen (t58 = 0.69, P = 0.492) and adrenal gland weights (t58 = 1.46, P = 0.151) were similar between periods. Our results provide baseline physiological data for deer in a nutrient-deficient habitat type. Though managers need to consider nutritional plane of particular habitat types, our results indicate that deer can achieve normal body weights and maintain body condition in nutrient-deficient sites.
机译：生理和形态学指标对于确定维吉尼亚州产的Odocoileus virginianus（白尾鹿;以下称鹿）的状况非常有用，对鹿的管理也很重要。但是，关于养分不足的生境类型中的鹿状况的信息很少。 Pocosins具有低营养平面，其特征是深，酸性的泥炭土，带有密集的灌木层，几乎没有或根本没有硬和软的肥大。在2008年7月和2009年3月，我们从北卡罗来纳州沿海的taeda（火炬松）集约化管理的31,565公顷Pocosin森林中收集了总共60头母鹿（每个时期30只）。我们记录了整个体重，去内脏的体重，脾脏和肾上腺的重量以及肾脏脂肪指数（KFI）。采集后在实验室中测定了异常疟原虫计数（APC）和股骨骨髓脂肪指数（MFI），并分析了血液样本中的细胞体积和标准血清化学成分。除钾浓度升高外，血清化学指标均在预期范围内。 KFI和MFI均在文献报道的水平之内，而APC的水平并未显示出大量的寄生虫负荷。在两个时期之间，脾脏（t58 = 0.69，P = 0.492）和肾上腺重量（t58 = 1.46，P = 0.151）相似。我们的研究结果为营养缺乏型生境类型的鹿提供了基线生理数据。尽管管理人员需要考虑特定栖息地类型的营养面，但我们的研究结果表明，鹿能够在营养缺乏的地区达到正常体重并保持身体状况。

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