Alterations on vitamin C synthesis and transportation and egg deposition induced by dietary vitamin C supplementation in Hy-Line Brown layer model.
Alterations on vitamin C synthesis and transportation and egg deposition induced by dietary vitamin C supplementation in Hy-Line Brown layer model.
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DOI：
10.1016/j.aninu.2021.01.006
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发表时间：
2021-12
期刊：
影响因子：
--
通讯作者：
Yang X
中科院分区：
文献类型：
--
作者：
Zhu Y;Guo W;Zhao J;Qin K;Yan J;Huang X;Ren Z;Yang X;Liu Y;Yang X
蛋内投喂VC对家禽的生长性能、免疫功能和抗氧化功能有积极的影响，这表明增加鸡蛋中VC的含量可能是有益的。本研究旨在探讨饲粮中添加维生素C对蛋鸡维生素C合成、转运和蛋沉积的影响。在Exp. 1、为了选择合适的动物模型，对不同蛋鸡品种的鸡蛋进行了VC含量测定。伊萨褐种蛋和海兰褐种蛋的维生素C含量显著低于爱拔种种蛋（P < 0.05）。在Exp. 2、选用42周龄海兰褐蛋鸡24只，随机分为3个处理，每个处理8个重复，分别饲喂添加0、200和400 mg/kg VC的基础日粮。钠依赖性VC转运体1和2（SVCT 1和SVCT 2）在回肠的表达高于十二指肠和空肠（P < 0.05）。SVCT 1在枕大肌中的表达高于卵巢，SVCT 2在枕大肌中的表达低于卵巢（P < 0.05）。与肝脏相比，肾脏中L-古龙酸内酯氧化酶（GLO）和SVCT 1的表达量较高，而SVCT 2的表达量较低（P < 0.05）。添加400 mg/kg VC可显著增加SVCT 1在十二指肠、卵巢和胃大胃中的表达，而降低GLO和SVCT 1在肝脏中的表达（P < 0.05）。添加200和400 mg/kg维生素C可显著增加SVCT 2在十二指肠的表达，降低GLO和SVCT 1在肾脏的表达以及SVCT 2在肝脏的表达（P < 0.05）。日粮中添加VC促进了十二指肠和空肠对VC的吸收，但降低了肝脏和肾脏内源性VC的合成。虽然饲料中添加VC促进了VC在卵巢和大胃的运输，但并没有增加VC在产蛋中的沉积。
In ovo feeding of vitamin C (VC) has positive effects on the growth performance, immune and antioxidant function in poultry, which indicates that increasing VC content in eggs may be of benefit. This study was to investigate the effects of dietary VC supplementation on VC synthesis and transportation and egg deposition. In Exp. 1, in order to select a suitable animal model, VC content was detected in different eggs from different layer species. Vitamin C content was lower in ISA Brown breeder eggs and Hy-Line Brown layer eggs (P < 0.05) then in Arbor Acres breeder eggs. In Exp. 2, a total of 24 Hy-Line Brown layers (42-week-old) were randomly divided into 3 treatments with 8 replicates and fed a basal diet with VC at 0, 200 and 400 mg/kg. Sodium-dependent VC transporter 1 and 2 (SVCT1 and SVCT2) expressions were higher in ileum than in duodenum and jejunum (P < 0.05). SVCT1 expression was higher but SVCT2 expression was lower in the magnum than in the ovary (P < 0.05). L-Gulonolactone oxidase (GLO) and SVCT1 expressions were higher but SVCT2 was lower in the kidney than in the liver (P < 0.05). Dietary VC supplementation at 400 mg/kg increased SVCT1 expression in duodenum, ovary and magnum, but decreased GLO and SVCT1 expression in liver (P < 0.05). Dietary VC supplementation at 200 and 400 mg/kg increased SVCT2 expression in duodenum, but decreased GLO and SVCT1 expression in kidney and SVCT2 expression in liver (P < 0.05). Dietary VC supplementation promoted VC absorption in duodenum and jejunum, but reduced endogenous VC synthesis in liver and kidney. Although dietary VC supplementation enhanced VC transportation in ovary and magnum, it did not increase VC deposition in produced eggs.
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影响因子：
0.6
作者：
Ahmed, Waseem;Ahmad, Shakeel;Kamran, Zahid
通讯作者：
Kamran, Zahid
DOI：
10.1046/j.1439-0396.2000.00286.x
发表时间：
2000-09-01
影响因子：
2.7
作者：
Hooper, CL;Maurice, DV;Toler, JE
通讯作者：
Toler, JE
影响因子：
3.8
作者：
Padayatty SJ;Levine M
通讯作者：
Levine M
影响因子：
2
作者：
Molnar, A.;Maertens, L.;Delezie, E.
通讯作者：
Delezie, E.
影响因子：
0.7
作者：
Nowaczewski, Sebastian;Kontecka, Helena;Krystianiak, Stanislawa
通讯作者：
Krystianiak, Stanislawa