ABSTRACT

The aim of the study was to compare the selenium (Se) status of beef cattle from conventional farms with the status of cattle from organic farms located in western Pomerania and to determine the ratios of Se concentration between soil, forage plants and animals at these locations. The mean total Se (Se_T) content in soil was 0.208 mg/kg dry matter (DM) on organic farms and 0.254 mg/kg DM on conventional farms. Animals from conventional farms had significantly (p < 0.05) higher serum Se concentration than those on organic farms. As Se deficiency were classified in 75% of animals from organic farms and in 42% animals from conventional farms. A lack of Se supplementation is associated with a serious risk of deficiency in ruminants, particularly in areas with low Se levels in the soil–plant system. Therefore, more attention should be devoted to increasing the bioavailability of Se for plants by enhancing the physicochemical properties of soil. In addition, the composition of swards for grazing should be adjusted to increase the share of forage plants capable of collecting larger amounts of Se from soil.

摘要

该研究的目的是比较传统农场肉牛的硒 (Se) 状况与位于波美拉尼亚西部的有机农场的牛的状况，并确定这些地点的土壤、饲料植物和动物之间的硒浓度比. 有机农场土壤中平均总硒 (Se _T ) 含量为 0.208 毫克/千克干物质 (DM)，常规农场为 0.254 毫克/千克干物质 (DM)。来自常规农场的动物显着（p< 0.05) 血清硒浓度高于有机农场。As 缺硒归类为来自有机农场的 75% 的动物和来自常规农场的 42% 的动物。缺乏硒补充与反刍动物缺乏硒的严重风险有关，特别是在土壤-植物系统硒含量低的地区。因此，应更多地关注通过增强土壤的理化性质来提高植物硒的生物有效性。此外，应调整放牧草场的组成，以增加能够从土壤中收集大量硒的牧草植物的比例。