Effects of Nano-copper on Antioxidant Function in Copper-Deprived Guizhou Black Goats
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Effects of Nano-copper on Antioxidant Function in Copper-Deprived Guizhou Black Goats Xiaoyun Shen 1,2,3
&
Chunjie Song 1 & Ting Wu 1
Received: 24 May 2020 / Accepted: 9 August 2020 # Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Guizhou black goats are essential to the production system in the Wumeng prairie in the Western China. This study aimed to determine the influence of nano-copper on antioxidant system in copper-deprived Guizhou black goats. We analyzed mineral contents in soil, forage, and goats’ tissues. Blood parameters were also determined. The results showed that copper concentrations in soil and forage were significantly lower, and the iron content was significantly higher in affected compared with healthy area (P < 0.01). Copper concentrations in animal tissues (blood, liver, and hair) were significantly lower and iron content was significantly higher in affected compared with healthy goats (P < 0.01). After supplementation of nano-copper or copper sulfate, copper concentration in blood was significantly increased and iron content was significantly lower (P < 0.01). Compared with nano-copper group, the effect of copper sulfate was slower. Hemoglobin levels, erythrocyte count, and packed cell volume from nano-copper and copper sulfate groups were significantly higher than those in copper-deprived goats (P < 0.01). Compared with the copper-deprived Guizhou black goats, serum ceruloplasmin levels in nano-copper and copper sulfate groups were significantly increased, while serum lactate dehydrogenase, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, and creatinine were significantly decreased (P < 0.01). Compared with the copper-deprived animals, serum superoxide dismutase, glutathione peroxidase, catalase, and total antioxidant capacity in nano-copper and copper sulfate groups were significantly higher, while serum malondialdehyde content was significantly lower (P < 0.01). The effect of copper sulfate group was significantly lower than that in nano-copper group (P < 0.01). Consequently, nano-copper could not only markedly increase the copper content in blood in copper-deprived Guizhou black goats but also much improves the antioxidant capacity. Keywords Guizhou black goats . Copper deprivation . Copper sulfate . Nano-copper . Antioxidant function
Introduction The Wumeng prairie is located in the Yunnan-Guizhou Plateau of Southwest China, where the three provinces of Guizhou, Yunnan, and Sichuan meet, and is an important pasture for Guizhou black goats. Goat farming is vital to the Xiaoyun Shen and Chunjie Song Equal contributors, they are cofirst authors. * Xiaoyun Shen [email protected] 1
School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
2
State Engineering Technology Institute for Karst Desertification Control, Guizhou Normal University, Guiyang 550025, China
3
World Bank Poverty Alleviation Project Office in Guizhou, Southwest China, Guiyang 550004, China
production syst
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