Subjects: Biology >> Zoology submitted time 2017-11-07 Cooperative journals: 《动物营养学报》
Abstract:本试验旨在研究蛋氨酸缺乏对蛋鸡产蛋后期生产性能、血清游离氨基酸含量和肝脏蛋氨酸代谢相关酶基因表达的影响。选取180只62周龄的海兰灰蛋鸡,根据产蛋率均匀分成3组(每组6个重复,每个重复10只):对照组饲喂蛋氨酸水平为0.33%的饲粮,蛋氨酸缺乏组分别饲喂蛋氨酸水平为0.21%和0.27%的饲粮,试验期90 d。结果表明:1)饲粮蛋氨酸缺乏显著降低了蛋鸡的平均日采食量、产蛋率、平均日产蛋重、平均蛋重和不合格蛋率(P0.05)。由以上结果可知:蛋鸡饲粮高水平的蛋氨酸缺乏会降低蛋鸡的生产性能,可能与蛋氨酸缺乏改变蛋氨酸代谢途径,影响DNA和RNA的甲基化过程有关。
Subjects: Biology >> Zoology submitted time 2017-10-11 Cooperative journals: 《动物营养学报》
Abstract:硒代蛋氨酸(SeMet)是生物利用效率最高的有机硒化物,不仅比无机硒吸收利用率高,而且具有提高机体免疫力和增强抗应激能力等生物学功能。SeMet能显著提高蛋硒含量、改善蛋品质、增强机体抗氧化、免疫、应激能力。本文对SeMet的吸收代谢、生物学功能及其在蛋鸡生产中的应用现状进行综述,旨在为SeMet在蛋鸡生产领域的应用及其深入的研究提供理论依据。
Subjects: Biology >> Zoology submitted time 2017-10-11 Cooperative journals: 《动物营养学报》
Abstract:本试验旨在研究蛋氨酸缺乏对蛋鸡产蛋后期生产性能、血清游离氨基酸含量和肝脏蛋氨酸代谢相关酶基因表达的影响。选取180只62周龄的海兰灰蛋鸡,根据产蛋率均匀分成3组(每组6个重复,每个重复10只):对照组饲喂蛋氨酸水平为0.33%的饲粮,蛋氨酸缺乏组分别饲喂蛋氨酸水平为0.21%和0.27%的饲粮,试验期90 d。结果表明:1)饲粮蛋氨酸缺乏显著降低了蛋鸡的平均日采食量、产蛋率、平均日产蛋重、平均蛋重和不合格蛋率(P0.05)。由以上结果可知:蛋鸡饲粮高水平的蛋氨酸缺乏会降低蛋鸡的生产性能,可能与蛋氨酸缺乏改变蛋氨酸代谢途径,影响DNA和RNA的甲基化过程有关。
Subjects: Biology >> Zoology submitted time 2017-10-10 Cooperative journals: 《动物营养学报》
Abstract: As the highest bioavailability of organic selenide, selenomethionine has some advantages including higher absorption rate compared with inorganic selenium, biological functions such as enhancing the body immunity and the anti-stress ability, etc. Selenomethionine can improve the egg selenium content, the egg quality of laying hens, and enhance their abilities of antioxidation, immunity and antistress. This paper mainly reviewed the absorption metabolism, biological functions of selenomethionine and its application in laying hen production, aiming to provide theoretical basis for the application of selenomethionine in laying hen production and further study of selenomethionine.