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Effects of Dietary Copper on Nutrient Digestibility,Tissular Copper Deposition and Fur Quality of Growing-Furring Mink (Mustela vison) |
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| Authors: | Xuezhuang Wu Zhi Liu Tietao Zhang Ying Yang Fuhe Yang Xiuhua Gao |
| Affiliation: | 1. Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China 2. Institute of Special Wild Economic Animals and Plants, Chinese Academy of Agricultural Sciences, Changchun City, Jilin, China 3. State Key Lab for Molecular Biology of Special Economic Animals, Changchun City, Jilin, China |
| Abstract: | The present study investigated the effects of dietary copper (Cu) on growth performance and fur quality in growing-furring minks. One hundred and five standard dark female minks were randomly assigned to seven groups with the following dietary treatments: basal diet with no supplemental Cu (control) and basal diet supplemented with either 6, 12, 24, 48, 96 or 192 mg/kg Cu from copper sulphate, respectively. Our data showed that final body weight (P?=?0.033), daily gain (P?=?0.029) and fat digestibility (P?=?0.0006) responded to increasing levels of Cu. The activity of glutamic-oxalacetic transaminase (GOT) and glutamic-pyruvic transaminase (GPT) in serum increased (linear and quadratic, P?P?P?P?P? |
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