Tufarelli V, Cazzato E, Ceci E, Laudadio V
Department of Emergency and Organ Transplantation, Section of Veterinary Science and Animal Production, University of Bari 'Aldo Moro', S.P. per Casamassima km 3, 70010, Valenzano, Italy.
Department of Agro-Environmental and Territorial Sciences, University of Bari 'Aldo Moro', 70125, Bari, Italy.
Biol Trace Elem Res. 2016 Sep;173(1):219-24. doi: 10.1007/s12011-016-0652-0. Epub 2016 Feb 22.
The aim of the present study was to investigate the effect of adding selenium (Se) in cereal production by fertilization on Se concentration in laying hen eggs. Tritordeum (×Tritordeum Ascherson et Graebner), a new cereal from the cross between durum wheat and a wild barley species having accreditation as natural crop species, was produced using selenate as Se-fertilizer. Hy-Line Brown laying hens were randomly allocated to two dietary treatments and fed for 10 weeks. Hens were fed two corn-soybean meal-based diets comprising a control basal diet including Tritordeum (100 g/kg diet) cv. Aucan grown without Se fertilization (containing background Se only from premix supplying 1,0 times birds' requirements) and a test-diet containing Se-enriched Tritordeum at the same level of the control diet. No difference was observed among dietary treatments on feed consumption and efficiency, egg mass, and laying rate, whereas egg yolk Se and vitamin E contents as well as liver and plasma Se levels were significantly influenced by dietary Se-enriched Tritordeum. Based on our findings, Se-enriched Tritordeum improved egg quality without affecting hens' productive performance. Thus, Se-fertilized Tritordeum may represent a valuable natural source of Se compared to conventional dietary supplements.
本研究的目的是调查通过施肥在谷物生产中添加硒（Se）对蛋鸡所产鸡蛋中硒浓度的影响。黑小麦（×Tritordeum Ascherson et Graebner）是一种由硬粒小麦与一种野生大麦品种杂交培育出的新型谷物，已被认定为天然作物品种，该谷物使用硒酸盐作为硒肥进行种植。海兰褐蛋鸡被随机分配到两种日粮处理组，并饲养10周。给母鸡饲喂两种以玉米 - 豆粕为基础的日粮，一种是对照基础日粮，其中包含未施用硒肥种植的黑小麦（100克/千克日粮）品种Aucan（仅从预混料中获取背景硒，满足鸡所需量的1.0倍），另一种是试验日粮，其硒富集黑小麦的含量与对照日粮相同。在饲料消耗和效率、蛋重及产蛋率方面，各日粮处理组之间未观察到差异，然而，日粮中硒富集黑小麦显著影响了蛋黄硒和维生素E含量以及肝脏和血浆中的硒水平。基于我们的研究结果，硒富集黑小麦改善了蛋的品质，同时未影响母鸡的生产性能。因此，与传统日粮补充剂相比，施用硒肥的黑小麦可能是一种有价值的天然硒源。
