冬季圈养和放归普氏野马成年雄性应激状态研究

Physiological Stress of Captive and ReleasedAdult Male Przewalski's Horses in Winter

于2006年冬季采用非损伤性的粪样激素R IA法,测定了新疆圈养和放归成年雄性普氏野马的糖皮质激素代谢产物含量,获得了各组成年雄性野马的生理应激状态。结果表明:野马各组间糖皮质激素代谢产物的含量存在显著差异,其中,放归雄马与头马组间(T=7.193,P=0.000)、放归头马和圈舍头马组间(T=7.496,P=0.000)、圈舍雄马和放归雄马组间(T=8.06,P=0.000)激素含量均存在极显著差异,圈舍头马与雄马组间激素含量差异显著(T=2.976,P=0.019)。各组间野马生理应激水平表现为:圈养雄马>圈养头马>野外头马>野外雄马。同时,初步分析了圈养和放归条件下普氏野马成年雄性的可能应激源,并由此从生理应激角度探讨了圈养和放归野马的科学管护问题。

In this study,the RIA method was used to evaluate the fecal glucocorticoid metabolites of adult male Przewalski s horses(Equus przewalskii) that were captured and released in the Xinjiang Centre for Przewalski s Horse Breeding and Research and the Karamay Natural Reserve.The physiological stress levels of each group of horses was then determined based on the generated data.The results revealed that the mean values of fecal glucocorticoid metabolites differed significantly among groups.Specifically,the value...