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Product description: 1. Physical and chemical functions of copper in animals. Copper is a cofactor of many enzymes in animals and is involved in oxidative phosphorylation, free radical detoxification, melanin synthesis, catecholamine metabolism, connective tissue crosslinking, iron and amine oxidation, uric acid metabolism, blood coagulation, hair formation and other metabolic processes. Copper is also necessary for glucose metabolism, cholesterol metabolism, bone calcification, immune function, myelination, thermoregulation, erythropoiesis, leucogenesis, cardiac function, hormone secretion and gene expression. 2. the amount of copper required by animals In the case of favorable copper absorption, the copper requirement for pigs and chickens is 4～5mg/kg daily ration, and for ruminants is 8～10mg/kg daily ration. 3. product quality standard Product name Executive standard Main element content and hygiene index Perception Fineness Tribasic Copper Chloride Q/NYW14-2019 Cu≥58.0%，As≤0.002%, Pb≤0.001%，Cd≤0.0005% Dark green and light green powder or granule Pass250 μm ≥95% 4. packaging specifications according to customer requirements 25kg/bag, 1000kg/bag .