Effect of dietary supplementation with selenium-enriched yeast or sodium selenite on ruminal enzyme activities and blood chemistry in sheep

被引:20
作者
Faixova, Zita [1 ]
Piesova, Elena [1 ]
Makova, Zuzana [1 ]
Cobanova, Klaudia [2 ]
Faix, Stefan [2 ]
机构
[1] Univ Vet Med & Pharm Kosice, Inst Pathol Physiol, Komenskeho 73, Kosice 04181, Slovakia
[2] Slovak Acad Sci, Inst Anim Physiol, Kosice, Slovakia
关键词
Rumen; blood enzymes; ruminant; GLUTATHIONE-PEROXIDASE; INORGANIC SELENIUM; DAIRY-COWS; VITAMIN-E; PARAMETERS; LAMBS; FORMS; FERMENTATION; PERFORMANCE; METABOLISM;
D O I
10.2754/avb201685020185
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
The experiment was conducted to evaluate the effect of feeding a diet supplemented with different forms of selenium on the rumen fluid, blood and serum enzyme activity and osmotic fragility of red blood cells in sheep. The experiment was carried out on 18 sheep of the Valashka breed at the age of 18 months, divided into 3 groups. The first group was given basal diet (BD) with a Se content of 0.17 mg/kg of dry matter (DM). The second group received BD supplemented with 0.4 mg Se/kg of (DM) in the form of sodium selenite. The third group received BD supplemented with 0.4 mg Se/kg of (DM) in the form of Se-yeast extract. Duration of the trial was 12 weeks. Selenium concentration in blood and total rumen fluid were elevated in both supplemented groups with the highest values in Se-yeast-treated sheep. Blood glutathione peroxidase (GPx) activity was significantly increased, regardless of the source of selenium. Osmotic resistance of red blood cells was not affected by selenium supplementation. The results indicate that feeding a diet supplemented with selenium from Se-yeast or selenite improved selenium status in blood and total rumen fluid. Selenium from sodium selenite was as effective as selenium from Se-yeast in the availability of selenium for the blood GPx activity. The effect of selenium supplementation on the ruminal enzyme activity depends on the selenium form; GGT and GDH were significantly higher in the Se-yeast supplement group, AST and ALP were significantly higher in the selenite supplement group.
引用
收藏
页码:185 / 194
页数:10
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