育肥猪毛发中的皮质醇、脱氢表雄酮和性类固醇浓度。
Cortisol, DHEA, and Sexual Steroid Concentrations in Fattening Pigs' Hair.
作者信息
Bergamin Cristina, Comin Antonella, Corazzin Mirco, Faustini Massimo, Peric Tanja, Scollo Annalisa, Gottardo Flaviana, Montillo Marta, Prandi Alberto
机构信息
Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, 33100 Udine, Italy.
Department of Veterinary Medicine, University of Milano, 20133 Milano, Italy.
出版信息
Animals (Basel). 2019 Jun 12;9(6):345. doi: 10.3390/ani9060345.
The aim of this study was to analyze the feasibility and reliability of using hair as a matrix to determine the dehydroepiandrosterone (DHEA) and sexual steroid concentrations and the cortisol/DHEA ratio in fattening pigs. The results could be also used to plan future research to identify threshold values in order to set up strategies to control the allostatic load and increase the resilience of fattening pigs before slaughter. The study was conducted on 107 commercial crossbred rearing pigs. The hair samples were taken by shaving at the age of 36 weeks, and concentrations of the hormones were measured using a solid-phase microtiter radioimmunoassay. Females had significantly higher cortisol levels ( < 0.01), significantly lower DHEA concentrations ( < 0.05) and significantly higher cortisol/DHEA ratios ( < 0.01) than barrows. Progesterone was significantly higher in gilts than in barrows ( < 0.01). Testosterone and 17β-estradiol were significantly higher in barrows than in gilts ( < 0.05). If future research can produce threshold values for the different markers examined, the evaluation of animals under subclinical stress conditions will be possible.
本研究的目的是分析将毛发作为一种基质来测定育肥猪体内脱氢表雄酮（DHEA）、性类固醇浓度以及皮质醇/DHEA比值的可行性和可靠性。研究结果还可用于规划未来的研究，以确定阈值，从而制定策略来控制育肥猪在屠宰前的应激负荷并提高其恢复力。本研究以107头商品杂交育肥猪为对象。在36周龄时通过剪毛采集毛发样本，并使用固相微量滴定放射免疫分析法测定激素浓度。与阉公猪相比，母猪的皮质醇水平显著更高（<0.01），DHEA浓度显著更低（<0.05），皮质醇/DHEA比值显著更高（<0.01）。后备母猪的孕酮水平显著高于阉公猪（<0.01）。阉公猪的睾酮和17β-雌二醇水平显著高于后备母猪（<0.05）。如果未来的研究能够得出所检测的不同标志物的阈值，那么对处于亚临床应激状态下的动物进行评估将成为可能。
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