Abstract

The recommended dietary intakes for the chelated metal proteinates containing copper in various bound forms, organic and inorganic, at different levels have been proven in an experiment with young fattening pigs. Compound feed enriched with copper sulfate at the rate of 40 g per t was fed to the tested animals in the control group. The animals in the first experimental group received compound feed supplemented with the element indicated above (in the form of copper sulfate) at a dose rate of 20 g/t. The animals in the second and third experimental groups were given the chelated copper complexes at the levels of incorporation of 50 and 100 g/t of compound feeds. The surveys have determined that the optimum rate of inclusion of organic copper into the compound feed for young fattening pigs is 50 g per t. This has the potential to improve the protein digestibility by 1.82%, which is followed by increases in the average daily liveweight gains and the carcass meat yields by 4.5 and 2.2%, respectively. Significant deposits of iron, copper, zink, and manganese in the liver, the longissimus dorsi muscle, and the tibia of the experimental animals fed compound feeds supplemented with the indicated microelements are detected. Histological sections of the small intestine mucosa have indicated that the use of organic copper can contribute to the development of the villus height and the crypt depth and, thereby, improve the digestive and absorptive functions of the intestine. Intensification of the biochemical processes in blood and tissues of the liver and the stomach occurs, which can potentially contribute to increasing the young pig production by 4.5%.

中文翻译：

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不同水平和形式的螯合金属蛋白对育肥仔猪生产性能和代谢过程的影响

摘要

在幼小育肥猪的实验中，已证明建议的饮食摄入量应包括不同结合水平的有机和无机各种形式的含铜螯合金属蛋白。以每吨40 g的速度添加富含硫酸铜的化合物饲料，喂给对照组的被测动物。在第一实验组中的动物以20g / t的剂量率接受补充有上述元素（硫酸铜形式）的化合物饲料。在第二和第三实验组中的动物以50和100g / t化合物饲料的掺入水平被给予螯合的铜络合物。调查确定，育肥小猪的复合饲料中有机铜的最佳添加量为每吨50克。这有可能使蛋白质的消化率提高1.82％，随后平均日增重和and肉产量分别增加4.5％和2.2％。检测到饲喂补充有所示微量元素的复合饲料的实验动物的肝脏，背最长肌和胫骨中大量铁，铜，锌和锰的沉积物。小肠粘膜的组织学切片表明，使用有机铜可以促进绒毛高度和隐窝深度的发展，从而改善肠的消化吸收功能。肝脏和胃的血液和组织中的生化过程加剧，这可能有助于使幼猪的产量增加4.5％。