Department of Animal Science, Faculty of Agriculture and Natural Resources, Arak University, Arak, 38156-8-8349, Iran.
Department of Research and Development, Sodour Ahrar Shargh Company, Tehran, Iran.
Biol Trace Elem Res. 2018 May;183(1):147-155. doi: 10.1007/s12011-017-1117-9. Epub 2017 Aug 11.
The effects of water supplementation of chelated trace minerals (CTM, which is named Bonzaplex designed with chelate compounds technology) on growth performance, apparent total tract digestibility (ATTD) of minerals, and some blood metabolites, TM, and antioxidant enzyme values in African ostriches were investigated from 8 to 12 months of age. A total of 20 8-month-old ostriches (five birds in five replicate pens) was randomly allocated into one of the following four treatments: (1) control (basal diet + tap water), (2) low CTM (basal diet +100 mg/bird/day CTM powder in tap water), (3) medium CTM (basal diet +1 g/bird/day CTM powder in tap water), and (4) high CTM (basal diet +2 g/bird/day CTM powder in tap water). Compared with control, medium CTM improved (P < 0.05) daily weight gain and ATTD of phosphorous, zinc, and copper in 12-month-old ostriches. Furthermore, the feed conversion ratio was lower, and ATTD of magnesium was higher in the medium- and high-CTM groups than that in the control group (P < 0.05). At the end of the trial, ostriches receiving high-CTM treatment exhibited the lower (P < 0.05) serum triglyceride and very low-density lipoprotein cholesterol concentrations and higher copper levels compared to those of the control treatment. Supplementation of higher amounts of CTM (medium and high CTM) also increased the activity of serum superoxide dismutase (P < 0.05). No differences were detected for other blood parameters including glucose, total protein, albumin, cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, iron, magnesium, and glutathione peroxidase values. In conclusion, supplementation of CTM at the level of 1 g/bird/day to the drinking water can be recommended for improving growth performance, mineral absorption, and antioxidant status of ostriches fed diets containing the recommended levels of inorganic TM.
从 8 到 12 月龄，研究了螯合微量元素（CTM，用螯合化合物技术设计的 Bonzaplex）水合补充对非洲鸵鸟生长性能、矿物质表观全肠道消化率（ATTD）以及一些血液代谢物、TM 和抗氧化酶值的影响。共有 20 只 8 月龄鸵鸟（每 5 只鸟一个重复栏）被随机分配到以下 4 个处理之一：（1）对照组（基础日粮+自来水），（2）低 CTM 组（基础日粮+自来水 100mg/鸟/天 CTM 粉），（3）中 CTM 组（基础日粮+自来水 1g/鸟/天 CTM 粉）和（4）高 CTM 组（基础日粮+自来水 2g/鸟/天 CTM 粉）。与对照组相比，中 CTM 提高了 12 月龄鸵鸟的日增重和磷、锌、铜的 ATTD（P<0.05）。此外，中、高 CTM 组的饲料转化率较低，镁的 ATTD 较高（P<0.05）。试验结束时，与对照组相比，高 CTM 组鸵鸟的血清甘油三酯和极低密度脂蛋白胆固醇浓度较低（P<0.05），铜水平较高。补充更多的 CTM（中 CTM 和高 CTM）也增加了血清超氧化物歧化酶的活性（P<0.05）。其他血液参数，包括血糖、总蛋白、白蛋白、胆固醇、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇、铁、镁和谷胱甘肽过氧化物酶值，均无差异。总之，向饮用水中添加 1g/鸟/天的 CTM 可以推荐用于改善生长性能、矿物质吸收和抗氧化状态的鸵鸟日粮中含有推荐水平的无机 TM。
