Tufarelli V, Ceci E, Laudadio V
Department of Emergency and Organ Transplantation (DETO), Section of Veterinary Science and Animal Production, University of Bari 'Aldo Moro', s.p. per Casamassima km 3, 70010, Valenzano, Italy.
Department of Veterinary Medicine, University of Bari 'Aldo Moro', 70010, Valenzano, Italy.
Biol Trace Elem Res. 2016 Jun;171(2):453-458. doi: 10.1007/s12011-015-0548-4. Epub 2015 Nov 2.
Food-based strategies need to be developed to improve the selenium (Se) status of individuals. The aim of this study was to evaluate the effects of a new organic Se [2-hydroxy-4-methylselenobutanoic acid (HMSeBA)] on selected performance criteria and Se deposition in egg of laying hens. Isa Brown laying hens, 18 weeks of age were randomly allocated to two dietary treatments and fed for 10 weeks. The hens were fed two corn-soybean meal-based diets comprising a control basal diet without Se supplementation and a test diet supplemented with Se at 0.2 mg/kg from HMSeBA. No difference was observed among dietary treatments on feed intake, egg weight and laying rate, whereas egg yolk fatty acid profile and vitamin E content were positively influenced by HMSeBA supplementation. Hens fed Se-supplemented diet exhibited greater (P < 0.001) egg yolk total Se contents, which averaged 21.2 mg/100 g dry matter (DM) compared to control diet (11.7 mg/100 g DM). Our results suggested that HMSeBA as Se supplement influences positively egg yolk quality without affecting hens' productive traits. Moreover, HMSeBA offers an efficient alternative to fortify eggs with Se, which can consequently lead to greater supply of Se for humans.
需要制定基于食物的策略来改善个体的硒（Se）状况。本研究的目的是评估一种新型有机硒[2-羟基-4-甲基硒代丁酸（HMSeBA）]对蛋鸡特定生产性能指标和蛋中硒沉积的影响。18周龄的伊莎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，一种是不添加硒的对照基础日粮，另一种是添加0.2mg/kg HMSeBA硒的试验日粮。在采食量、蛋重和产蛋率方面，日粮处理之间未观察到差异，而添加HMSeBA对蛋黄脂肪酸谱和维生素E含量有积极影响。饲喂添加硒日粮的母鸡蛋黄总硒含量更高（P<0.001），与对照日粮（11.7mg/100g干物质）相比，平均为21.2mg/100g干物质。我们的结果表明，HMSeBA作为硒补充剂对蛋黄品质有积极影响，而不影响母鸡的生产性能。此外，HMSeBA为鸡蛋强化硒提供了一种有效的替代方法，从而可以为人类提供更多的硒。
