林麝雌体粪便甲状腺激素的测定及其生物学意义  

Fecal thyroid hormone levels in female forest musk deer in captivity and their biological implications

作　　者：魏雨婷[1] 周冉[1] 刘宝庆 胡晓龙[1] 刘树强[1] 李林海[3] 胡德夫[1] 

机构地区：[1]北京林业大学自然保护区学院 [2]陕西片仔癀麝业有限责任公司 [3]北京市国家林业局林产工业规划设计院

出　　处：《北京林业大学学报》2016年第5期108-113,共6页Journal of Beijing Forestry University

基　　金：国家林业局物种专项(林麝2015)

摘　　要：林麝饲养繁育承担着重建野生种群和保障麝香可持续利用的艰巨任务,然而其饲养种群长期受到健康状态不稳定和疾病高发的困扰,同时,受到濒危等级和试验样品的限制,迄今鲜有涉及林麝生理参数的文献。本研究于2014年7—8月分别采集陕西火烧店和四川米亚罗林麝饲养场的林麝粪样,采用酶联免疫法(ELISA)测定雌麝粪便中三碘甲腺原氨酸(T3)的含量,以探讨雌麝粪便T3值表达的生理状态及变化趋势。结果表明,陕西火烧店和四川米亚罗饲养场雌麝粪便T3在所研究的时段内不存在显著差异;两地雌麝粪便T3在3岁至5岁期间随着年龄的增长呈现逐渐上升的趋势,但在5岁之后随着年龄的增大而逐渐下降,这可能意味着雌麝在5岁左右达到生理盛期;雌麝粪便T3的聚类结果发现,不同年龄组均存在差异显著的3个类型,即生理代谢的低、中、高类型。利用粪便T3从能量代谢角度揭示雌麝的生理特性,可能有助于麝繁育群的组建、饲养管理及健康评判。Both wild population rebuilding and sustainable musk yields require a healthy and growing population of musk deer（ Moschus berezovskii） in captivity. Challenges of maintaining such a population come from irregular and frequent disease outbreaks. Meanwhile,disease monitoring and prediction require musk deer＇s baseline levels of physiology,which has been extremely lacking due to the high level of endangerment and limited availability of samples. In order to provide baseline physiology for disease monitoring,we non-invasively collected fecal samples from two captive populations of musk deer in Huoshaodian,Shaanxi,and Miyaluo,Sichuan in China,between July and August of 2014,and applied enzyme-linked immunosorbent assay（ ELISA） method to estimate the concentrations and dynamics of fecal triiodothyronine（ T3） among females. We found there was no significant difference of T3 concentrations between two populations during the study period. T3 concentrations first showed a universally growing trend with age from the age of 3 to 5,and then decreased after the age of 5 years. It might suggest that female musk deers reach physiological maturity at age 5. By clustering fecal T3 levels,we found significant differences among individuals at each age group,all of which could be assigned into low,medium and high metabolicgroups. We suggest the fecal T3 level,an index reflecting individual＇s metabolic characteristics of individuals,could be used to unveil physiological status of female musk deers,which has great potential in captive population establishment and management,as well as health condition evaluations.

关 键 词：林麝 粪便甲状腺激素 生理状态 指示作用 

分 类 号：S759.82[农业科学—森林经理学] S865.4[农业科学—林学]