School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China.
World Bank Poverty Alleviation Project Office in Guizhou, Southwest China, Guiyang, 550004, China.
Biol Trace Elem Res. 2021 Jan;199(1):142-147. doi: 10.1007/s12011-020-02137-4. Epub 2020 Mar 31.
To study responses of Procapra przewalskii to zinc (Zn) nutrition in physical habitat, we analyzed the content of mineral elements in soil, forage, and animal tissues. Physiological and biochemical indexes were also determined. The results showed that Zn contents in the soil and forage from affected pasture were significantly lower (P < 0.01) than those in unaffected areas. Zn concentrations in the blood, liver, and hair from affected P. przewalskii were also significantly lower (P < 0.01) than those in healthy animals. The levels of hemoglobin, erythrocyte count, and packed cell volume from affected P. przewalskii were significantly lower (P < 0.01) than those in healthy animals. Serum aspartate aminotransferase and alanine transaminase activities were significantly lower (P < 0.01) in affected P. przewalskii than in healthy animals, while serum lactate dehydrogenase and alkaline phosphatase levels were significantly higher (P < 0.01) in affected compared with healthy animals. The activities of superoxide dismutase, glutathione peroxidase, and catalase in serum were significantly lower and the malondialdehyde content was significantly higher (all P < 0.01) in affected compared with healthy animals. Affected P. przewalskii were treated orally with ZnSO. The Zn content in the blood increased gradually and serum antioxidant indexes gradually returned to within the healthy range. Zn deprivation in forage thus not only influenced the blood mineral content but also severely disrupted blood parameters and antioxidant function in P. przewalskii.
为了研究普氏原羚对锌（Zn）营养的物理生境响应，我们分析了土壤、饲料和动物组织中矿物质元素的含量。还测定了生理生化指标。结果表明，受影响牧场的土壤和饲料中的 Zn 含量明显低于（P<0.01）未受影响的地区。受影响普氏原羚血液、肝脏和毛发中的 Zn 浓度也明显低于（P<0.01）健康动物。受影响普氏原羚的血红蛋白、红细胞计数和红细胞压积水平明显低于（P<0.01）健康动物。受影响普氏原羚血清天冬氨酸转氨酶和丙氨酸转氨酶活性明显低于（P<0.01）健康动物，而血清乳酸脱氢酶和碱性磷酸酶水平明显高于（P<0.01）健康动物。血清中超氧化物歧化酶、谷胱甘肽过氧化物酶和过氧化氢酶的活性明显降低，丙二醛含量明显升高（均 P<0.01），与健康动物相比。受影响的普氏原羚口服 ZnSO。血液中的 Zn 含量逐渐增加，血清抗氧化指标逐渐恢复到健康范围内。饲料中 Zn 的缺乏不仅影响血液矿物质含量，而且严重破坏普氏原羚的血液参数和抗氧化功能。
