Compared to the corresponding source of inorganic trace minerals (TM), chelated supplements are characterized by better physical heterogeneity and chemical stability and appear to be better absorbed in the gut due to possibly decreased interaction with other feed components. This study was designed in broiler chickens to determine the effects of replacing inorganic trace minerals (TM) with an advanced chelate technology based supplement (Bonzachicken) on growth performance, mineral digestibility, tibia bone quality, and antioxidant status. A total of 625 male 1-day-old broiler chickens were allocated to 25 pens and assigned to 5 dietary treatments in a completely randomized design. Chelated TM (CTM) supplement was compared at 3 levels to no TM (NTM) or inorganic TM. A corn–soy-based control diet was supplemented with inorganic TM at the commercially recommended levels (ITM), i.e., iron, zinc, manganese, copper, selenium, iodine, and chromium at 80, 92, 100, 16, 0.3, 1.2, and 0.1 mg/kg, respectively, and varying concentration of CTM, i.e., match to 25, 50, and 100% of the ITM (diets CTM25, CTM50, and CTM100, respectively). Diets CTM50 and CTM100 increased average daily gain (ADG), European performance index (EPI), and tibia length compared to the NTM diet (P < 0.05). Broilers fed the CTM100 diet had lowest overall FCR and serum malondialdehyde level and highest EPI, tibia ash, zinc, manganese, and copper contents, and serum total antioxidant capacity (P < 0.05). The apparent ileal digestibilities of phosphorus and zinc were lower in the ITM group compared with the CTM25 and CTM50 groups (P < 0.05). Broiler chickens fed any of the diets, except diet CTM25, exhibited higher serum glutathione peroxidase and superoxide dismutase activities than those fed the NTM diet, where the best glutathione peroxidase activity was found for CTM100 treatment (P < 0.05). These results indicate that while CTM supplementation to 25 and 50% of the commercially recommended levels could support growth performance, bone mineralization, and antioxidant status, a totally replacing ITM by equivalent levels of CTM could also improve performance index and glutathione peroxidase activity of broiler chickens under the conditions of this study.

中文翻译：

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先进的螯合技术为基础的微量矿物质对肉鸡生长性能，矿物质消化率，胫骨特征和抗氧化状态的影响

与相应的无机微量元素（TM）来源相比，螯合补充剂的特点是具有更好的物理异质性和化学稳定性，并且由于与其他饲料成分的相互作用可能减少，因此在肠道中的吸收性更好。这项研究是针对肉鸡而设计的，以确定用先进的基于螯合技术的补品（Bonzachicken）替代无机微量矿物质（TM）对生长性能，矿物质消化率，胫骨质量和抗氧化状态的影响。总共625只1天大的雄性肉鸡以完全随机的设计分配给25只钢笔，并分配给5种饮食疗法。将螯合的TM（CTM）补充剂与没有TM（NTM）或无机TM的3种水平进行了比较。玉米大豆为基础的对照饮食中添加了工业推荐水平（ITM）的无机TM，即铁，锌，锰，铜，硒，碘和铬的含量分别为80、92、100、16、0.3、1.2 CTM的浓度分别为0.1 mg / kg和0.1 mg / kg，并且分别与ITM的25％，50％和100％相匹配（分别为CTM25，CTM50和CTM100）。与NTM饮食相比，CTM50和CTM100饮食增加了平均日增重（ADG），欧洲性能指数（EPI）和胫骨长度（P <0.05）。饲喂CTM100日粮的肉鸡的总FCR和血清丙二醛水平最低，EPI，胫骨灰分，锌，锰和铜含量最高，血清总抗氧化能力（P <0.05）。与CTM25和CTM50组相比，ITM组的磷和锌的回肠消化率较低（P <0.05）。饲喂除日粮CTM25以外的任何日粮的肉鸡，其血清谷胱甘肽过氧化物酶和超氧化物歧化酶活性均高于日粮NTM日粮，其中NTM日粮对CTM100处理具有最佳的谷胱甘肽过氧化物酶活性（P <0.05）。这些结果表明，尽管将CTM补充到商业推荐水平的25％和50％可以支持生长性能，骨骼矿化和抗氧化剂状态，但用等量的CTM完全替代ITM也可以改善肉鸡的性能指数和谷胱甘肽过氧化物酶活性在这项研究的条件下。其中CTM100处理的谷胱甘肽过氧化物酶活性最佳（P <0.05）。这些结果表明，尽管将CTM补充到商业推荐水平的25％和50％可以支持生长性能，骨骼矿化和抗氧化剂状态，但用等量的CTM完全替代ITM也可以改善肉鸡的性能指数和谷胱甘肽过氧化物酶活性在这项研究的条件下。其中CTM100处理的谷胱甘肽过氧化物酶活性最佳（P <0.05）。这些结果表明，尽管将CTM补充到商业推荐水平的25％和50％可以支持生长性能，骨骼矿化和抗氧化剂状态，但用等量的CTM完全替代ITM也可以改善肉鸡的性能指数和谷胱甘肽过氧化物酶活性在这项研究的条件下。