Department of Animal Reproduction Biotechnology and Environmental Hygiene, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology, Szczecin, Poland.
Arch Anim Nutr. 2021 Jun;75(3):183-194. doi: 10.1080/1745039X.2021.1913930. Epub 2021 May 2.
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) 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 ( < 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.
本研究旨在比较来自传统农场和位于西波美拉尼亚的有机农场的肉牛的硒（Se）状况，并确定这些地点土壤、牧草植物和动物之间的硒浓度比值。有机农场土壤中的总硒（Se）含量平均值为 0.208 毫克/公斤干物质（DM），而常规农场的含量为 0.254 毫克/公斤 DM。常规农场的动物血清硒浓度明显高于有机农场（<0.05）。75%的有机农场动物和 42%的常规农场动物被归类为缺硒。在土壤-植物系统中硒水平较低的地区，反刍动物，特别是硒缺乏症的风险很大。因此，应更加重视通过增强土壤的物理化学性质来提高植物中硒的生物利用度。此外，应调整放牧草地的组成，以增加能够从土壤中收集更多硒的牧草植物的比例。
