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Effect of dietary vanadium and vitamin C on egg quality and antioxidant status in laying hens
Author(s) -
Wang J. P.,
He K. R.,
Ding X. M.,
Luo Y. H.,
Bai S. P.,
Zeng Q. F.,
Su Z. W.,
Xuan Y.,
Zhang K. Y.
Publication year - 2016
Publication title -
journal of animal physiology and animal nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.651
H-Index - 56
eISSN - 1439-0396
pISSN - 0931-2439
DOI - 10.1111/jpn.12377
Subject(s) - malondialdehyde , glutathione peroxidase , chemistry , zoology , antioxidant , superoxide dismutase , haugh unit , vitamin c , factorial experiment , vitamin e , feed conversion ratio , food science , body weight , endocrinology , biology , biochemistry , statistics , mathematics
Summary This study assessed the effect of dietary vanadium (V) and vitamin C ( VC ) on production performance, egg quality and antioxidant status in laying hens. A total of 360 laying hens (31‐week‐old) were randomly allotted into a 3 × 3 factorial arrangement treatments (four replicates and 10 chicks per replicate) with three levels of dietary V (0, 5 and 10 mg/kg) and three levels of vitamin C (0, 50 and 100 mg/kg) for 12 weeks. The effect of V and VC did not alter egg production, egg weight, average daily feed intake and feed conversion ratio during 1–12 week. Albumen height and Haugh unit value were linearly decreased (p < 0.001) by addition of V, whereas the effect of 100 mg/kg VC was observed to counteract (p < 0.05) this effect in V‐containing treatments during 1–12 week. Hens fed V‐containing diet laid lighter (linear effect, p < 0.05) coloured eggs (higher lightness value, lower redness and yellowness value), and the VC exerted no influence on it during 1–12 week. The serum superoxide dismutase ( SOD ), catalase ( CAT ) and glutathione peroxidase ( GSH ‐Px) activities, ability to inhibit hydroxyl radical, were significantly decreased, and the malondialdehyde ( MDA ) and V contents were increased (p < 0.05) by effect of V during 4, 8 and 12 week. The effect of VC alone and the interactive effect between VC and V were shown to increase serum (p < 0.05) SOD activity in 4 week and decrease MAD levels in 12 week. The result indicate that V decreased the egg quality and caused the oxidative stress at level of 5 mg/kg and 10 mg/kg, and the addition of 100 mg/kg vitamin C can alleviate its egg quality reduction effect and can mitigate the oxidative stress to some extent.