Egg production weights trial

Dataset containing the results of trial conducted in an effort to determine the effects of long-term inclusion of the trace minerals: zinc, copper, and manganese in the feed on the egg production, egg shell quality, and internal egg quality of Lohmann lite laying hens. This trial compared minerals sourced from chelated hydroxy-analogues of methionine, with conventional sulphide and oxide salt sources of the same minerals. 
The production parameters that were measured during the trial included egg production, total feed intake, feed conversion ratio, and hen mortality. Egg shell quality was quantified by recording the total amount of eggs rejected per category, egg shell weight, egg weight, and the egg shell breaking strength. Internal egg quality was quantified by measuring the albumin height (Haugh unit), and the mineral concentration in the egg yolk of Zn, Cu and Mn. A total of 1080 Lohmann Brown Lite laying hens were allocated to six treatments. The trial was run for 60 weeks, was initiated at 16 weeks-of-age, and was terminated at 76 weeks-of-age. Each treatment was repeated eighteen times, and a complete randomised block design was used.

本数据集收录了为探究长期在饲料中添加微量元素（锌、铜、锰）对洛汉姆轻量型产蛋鸡的产蛋量、蛋壳品质及蛋内部品质影响而进行的实验结果。该实验将源自蛋氨酸羟基类似物螯合物的矿物质与同种矿物质的常规硫化物和氧化物盐源进行了对比。实验中测量的生产参数包括产蛋量、总饲料摄入量、饲料转化率和鸡只死亡率。蛋壳品质通过记录每类被拒蛋的总数、蛋壳重量、蛋重以及蛋壳抗破裂强度进行量化。蛋内部品质通过测量蛋白高度（Haugh单位）和蛋黄中锌、铜、锰的矿物质浓度进行量化。实验共分配了1080只洛汉姆布朗轻量型产蛋鸡至六种处理组。实验持续60周，始于16周龄，结束于76周龄。每个处理组重复18次，采用完全随机区组设计。