5 research outputs found
福建梅花山圈养华南虎幼虎与成年虎肠道菌群结构的比较研究
通过对华南虎3只幼虎和5只成年虎粪便微生物16S rRNA基因V4区域进行高通量测序,分析华南虎幼虎和成年虎肠道菌群组成和差异。结果表明,8份样品共检测到501个OTUs,包含17个门和176个属。华南虎幼虎肠道细菌物种Beta多样性显著高于成年虎(P4)。幼虎与成年虎肠道菌群组成的多样性与差异,可为不同年龄阶段华南虎的食物选择提供理论依据
大熊猫血液微量元素、血常规及生理生化指标测定及分析
本研究系统地检测了大熊猫血液微量元素、血常规及生理生化指标。研究发现,微量元素中镁元素的含量在不同年龄段间呈现差异。通过性别和年龄变量进一步两两比较发现,镁、锌、铁元素差异显著。血液生理生化结果显示大熊猫生理生化指标ALT、ALP两项参数在亚成年、成年及老年不同年龄段间差异显著(P<005),其余生化指标未呈现年龄间显著差异。性别和年龄变量比较发现ALP、ALT、TP 3项指标差异显著。血常规指标年龄分组中PLT在年龄间呈现随年龄增长指标下降趋势。性别和年龄分组多重比较发现MCV、NEUT%、LYMPH#、MCH、PLT、PLCR指标均有差异(P<005)。检测结果对大熊猫的健康监测与评估、疾病诊断和治疗有重要的价值和意义,可为评价大熊猫健康状况、临床诊疗等提供有价值的参考
江西官山自然保护区鸟兽多样性的红外相机监测
2015年1月—2016年8月,利用红外相机技术对江西官山国家级自然保护区鸟兽多样性进行监测,共布设28台红外相机,累计工作5643 d,共获得有效照片2820张,记录到兽类(Mammalia)4目7科12种,鸟类(Aves)5目11科27种,其中国家一级保护野生动物1种,即白颈长尾雉(Syrmaticus ellioti),国家二级保护野生动物6种,分别为猕猴(Macaca mulatta)、小灵猫(Viverricula indica)、白鹇(Lophura nycthemera)、勺鸡(Pucrasia macrolopha)、领角鸮(Otus lettia)和斑头鸺鹠(Glaucidium cuculoides)。相对丰富度指数排名前6的物种依次为白鹇(2332)、赤麂(Muntiacus muntjak,911)、小麂(Muntiacus reevesi,335)、野猪(Sus scrofa,328)、猕猴(291)和紫啸鸫(Myophonus caeruleus,260),其余物种相对丰富度均小于1。物种积累曲线显示,兽类在相机数达到12—13台时即趋于平缓,说明本调查对兽类监测取样充分;鸟类达到全部相机数后仍有增加趋势,说明对鸟类监测,红外相机技术更适宜作为其他监测方法(如样线法)的补充。研究结果可为官山自然保护区资源保护提供依据,并对探明其重点保护对象白颈长尾雉种群数量及分布具有重要参考价值
不同加工方式的油茶籽油对变应性接触性 皮炎的抗炎效果Anti-inflammatory effect of oil-tea camellia seed oil extracted by different methods on allergic contact dermatitis
为了明确不同加工方式的油茶籽油对变应性接触性皮炎(ACD)的治疗效果,并探究油茶籽油中的主要抗炎物质,分别制备低温压榨油茶籽油、热榨油茶籽原油、热榨精炼油茶籽油、土榨油茶籽油和超临界CO2油茶籽油,分析不同加工方式及添加不同活性物质的油茶籽油对ACD模型小鼠耳廓肿胀的影响,并结合ELISA法、HE染色和免疫组化探究其对小鼠炎症的抑制效果。结果表明:超临界CO2油茶籽油对ACD小鼠耳廓肿胀的抑制率最高,与阳性对照组相比其小鼠血清中炎症因子TNF-α、IL-1β和IL-6含量降低率超过10%,炎症细胞浸润程度明显好转,耳廓肿胀组织中NF-κB阳性表达量与阴性对照组相比无显著差异;预防性给药的抗炎效果普遍低于造模后给药;倍数添加角鲨烯和生育酚的油茶籽油对ACD小鼠耳廓肿胀的抑制率显著提高,在50%左右,且角鲨烯、生育酚处理组小鼠耳廓组织中NF-κB阳性表达量与阴性对照组无显著差异。因此,外用超临界CO2萃取的油茶籽油治疗小鼠ACD效果最佳,其抗炎效果并非源于单一活性成分,与角鲨烯和生育酚等活性成分均密切相关。In order to clarify the therapeutic effect of oil-tea camellia seed oil extracted by different methods on allergic contact dermatitis (ACD), and further explore the potential active substances of anti-inflammatory in oil-tea camellia seed oil, cold pressed oil-tea camellia seed oil, hot pressed crude oil-tea camellia seed oil, hot pressed-refined oil-tea camellia seed oil, native pressed oil-tea camellia seed oil, and supercritical CO2 extracted oil-tea camellia seed oil were prepared, the effects of different processing methods of oil-tea camellia seed oils and different active substances added with oil-tea camellia seed oils on auricular swelling in ACD model mice were analyzed, and their anti-inflammatory effect in mice were studied by combining ELISA method, HE staining, and immunohistochemistry. The results showed that the supercritical CO2 extracted oil-tea camellia seed oil showed the highest inhibition rate on auricular swelling of ACD mice, and the inflammatory factors, such as TNF-α, IL-1β and IL-6 were reduced more than 10% compared with positive control. The degree of inflammatory infiltration significantly improved, and there was no significant difference in NF-κB positive expression of auricular tissue between supercritical CO2 extracted oil-tea camellia seed oil treatment group and negative control. However, the anti-inflammatory effect of prophylactic administration was generally lower than that of post modeling administration.The oil-tea camellia seed oil that supplemented with multiple squalene and tocopherol increased the inhibition rate of auricular swelling about 50%. There was no significant difference in NF-κB positive expression of auricular tissue between the squalene and tocopherol group and the negative control. In general, supercritical CO2 extracted oil-tea camellia seed oil exhibits the best therapeutic effect on ACD mice, and the active anti-inflammatory ingredients are closely related to squalene and tocopherol
