已知有机酸基微量矿物质具有更高的生物利用度,可能是由于管腔内拮抗反应较少。进行了为期42天的研究,以评估锰(Mn)的补充,锌(Zn),硒(Se),铁(Fe),和来自不同来源的铜(Cu)。为此,总共检查了1248天大的孵化ArborAcres鸡的性能,组织学,骨完整性,和血浆生化参数。实验组如下:使用无机微量矿物质补充剂(ITM50,ITM75,ITM100,ITM120)提供50%,75%,100%和120%的微量矿物质需求的基础饮食;使用基于有机酸的微量矿物质补充剂(OAT33,OAT66,OAT100)提供33%和100%的微量矿物质需求的基础饮食使用基于氨基酸的螯合100%的矿物质补充剂(以氨基酸为对照)。根据结果,饲喂OAT66的鸟类平均每日体重增加(ADG)最高(P<0.05),平均日采食量(ADFI),和较低的饲料转化率(FCR)。饲喂OAT66增加(P<0.05)绒毛长度与隐窝深度之比,与OAT33和ITM100相比,分别为26%和19%,分别。在接受OAT补充剂的鸟类中,法氏囊的相对重量增加了22%,与接受ITM补充的患者相比(P<0.05)。与喂食ITM50的鸟类相比,喂食OAT66和OAT100的鸟类的血浆尿酸降低了42%(P<0.001)。总的来说,我们的结果表明,同样的性能可以通过使用较低水平的有机痕量矿物质。
Organic acid-based trace minerals are known to have more bioavailability, possibly due to fewer antagonism reactions in the lumen. A 42-day study was conducted to assess the supplementation of manganese (Mn), zinc (Zn), selenium (Se), iron (Fe), and copper (Cu) from different sources. To that end, a total of 1248-day-old As-hatched Arbor Acres chickens were examined for performance, histology, bone integrity, and plasma biochemical parameters. Experimental groups were as follows: basal diet supplying 50, 75, 100, and 120% of trace mineral requirements using an inorganic trace mineral supplement (ITM50, ITM75, ITM100, ITM120); basal diet supplying 33, 66, and 100% of trace mineral requirements using an organic acid-based trace mineral supplement (OAT33, OAT66, OAT100); plus a basal diet supplying 100% of trace mineral requirements using an amino acid-based chelated trace mineral supplement (ATM100%) as control positive. According to results, birds\' fed OAT66 had the highest (P < 0.05) average daily body weight gain (ADG), average daily feed intake (ADFI), and lower feed conversion ratio (FCR). Feeding OAT66 increased (P < 0.05) villus length to crypt depth ratio, compared to OAT33 and ITM100 by 26% and 19%, respectively. The relative weight of the bursa enhanced by 22% in birds\' receiving OAT supplement, compared to those received ITM supplement (P < 0.05). The plasma uric acid was reduced by 42% (P < 0.001) in birds fed with OAT66 and OAT100 when compared to those fed ITM50. Overall, our results indicated that the same performance could be achieved by using lower levels of organic trace minerals.