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Rivista di Biologia Molecolare e Biotecnologie

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Minerva Biotecnologica 2011 June-September;23(2-3):71-6


lingua: Inglese

The iron, copper and selenium status of grazing ewes in Semirom rangelands

Rasti M. 1, Ranjbari A. R. 1, Noaman V. 1, Daraei Germekhany A. 2, Javahery M. 3, Alibemani A. 3

1 Scientific Board of Isfahan Center of Natural Resources and Agriculture Center, Isfahan, Iran; 2 Yang Researchers Club, Gorgan Branch, Azad University, Gorgan, Iran; 3 M.Sc. Isfahan Center of Natural Resources and Agriculture Center, Isfahan, Iran


Aim. This study was conducted to investigate the iron (Fe), copper (Cu) and selenium (Se) concentration in blood of grazing ewes in Semirom rangelands during spring and summer of 2008.
Methods. The concentration of iron and copper was detected in serum and selenium (Glutathione peroxidase activity) in whole blood by diagnostic laboratory kits.
Results. Results showed that, Fe, Cu and Se concentration in serum was different through 3 different times of grazing season (P<0.01) but except the Fe that it’s concentration in serum (2.139±0.049 mg/L) was significantly lower than critical level, the levels of others were in the recommended concentrations in the serum of sheep blood in the first time of grazing season. Fe concentration was 1.677±0.047 mg/L in the middle time and 2.139±0.049 mg/L in the late time of grazing season. Copper concentration in the serum from the early to late time of grazing season was 2.124±0.088, 1.885±0.056, 1.718±0.033 mg/L and selenium concentration in whole blood was 0.189±0.008, 0.235±0.008 and 0.275±0.009 mg/L respectively.
Conclusion. Commonly the Ghashghaii nomads spend 8 month of every year in winter quarters and 4 month in summer quarters and the gestation and lactation of lambs take place in winter quarters, so according of this study, the deficiency of iron, copper and selenium not confirmed, therefore the application of this trace element supplement needs further investigation.

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