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人工饲养与野生川金丝猴体毛10种微量元素的含量及比较 总被引:2,自引:0,他引:2
测定了秦岭人工饲养(10只)和野生(14只)川金丝猴体毛中的10种微量元素含量。锌、铁、铜、钙、镁5种元素采用火焰原子吸收法;锰、铬、铅采用石墨炉原子吸收法;铝采用等离子光谱;硒经硝解后采用原子吸收法测定。结果表明,铬、锰、镁、铅、锌和硒的含量,人工猴极显著或显著高于野生猴;铁含量,人工猴极显著低于野生猴;钙、铜和铝的含量,人工猴与野生猴无显著差异。以人类毛发10种微量元素的正常范围为参照,人工猴铅、铬、锰与锌4种含量均显著超出正常范围的上限,属于严重超量。这可能与金丝猴饲养过程中添加营养制剂有关。 相似文献
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川金丝猴尿液中睾酮水平的季节性变化 总被引:12,自引:1,他引:12
The sichuan snub-nosed monkey(Rhinopithecus roxellanae),a spccics on the First Category State Key Protection List,is an endangered species endemic to China.This paper examines seasonal changes in urinary testosterone(T) levels in this species.Urine samples were collected by injectors from the cement floor of the monkey‘s enclosures in the early morning ,then stored in a freezer at -24℃.Urinary testosterone(T),was detected with radioimmunoassay (RIA) after being extracted by dichloromethane.The results show that the levels of urinary T varied widely over time and displayed seasonal variation that corresponded exactly with the monkey‘‘‘‘s sexual behavior.The mean value of T was 0.576-2.359ng/mgCr in the nonreproductive season and 36.483-47.889ng/mgCr in the reproductive season.The latter was 14.84-83.14 times as high as that in the nonreproductive season.Peak T values in the nonreproductive and in reproductive season were 0.82-10.60ng/mgCr and 237.841-326.231ng/mgCr respectively.Peak values in the reproductive season were 30.78-290.05 times that of the nonreproductive season.This seasonal change in T levels may be the main factor determining seasonal differences in sexual motivation.copulation and conception rate in these monkcys.In addition.co-habitation with females in the breeding season produces a sharp increase in t level in male monkcys;there is a causal relationship between sexual activity and T secretion [Acta Zoologica Sinica 49(3):393-398,2003]。 相似文献
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