Effects of iodine and selenium supplementation of the Farahani sheep on their mineral status in Markazi province,Iran
2009
Talebian Masoudi, A.R., Member of the Academic Board of Agriculture and Natural Resources Research Center of Markazi Province, Iran | Fazaeli, H., Member of the Academic Board of Animal Science Research Institute | Bahadori, S., MSc Expert of Agricultural and Natural Resources Research Center of Markazi Province
Three year research was conducted to determine the selenium and iodine status and monitoring effects of mineral supplementation of sheep flocks in Markazi province, Iran. Three sheep flock in different areas (Shazand, Khomein and Arak) were selected and in each flock, 120 young ewes were randomly allotted to 4 treatments groups included: no supplement (T1) as control, (T2 ) injections of Se, (T3) Iodine and (T4 )Selenium plus iodine. Results showed that, glutation peroxidase enzyme (GSH-Px) activity as well as the iodine status were significantly(P0.05) different among the flocks, where the highest activity amount(102.2 U/g Hb) of the enzyme found in Arak but lowest (46.3 U/g Hb) in Shazand flock. The highest urinary concentration of iodine was detected in Khomein flock (39.0 µg/L) followed by Arak (35.9 µg/L) but lowest amount (24.7 µg/L) found in Shazand flock. There were significantly (P0.05) differences between the years for GSH-Px activity and urinary iodine concentration in the ewes but the seasonal variations were limited to Arak flock. Injection of Se+E significantly (P0.05) increased GSH-Px activity. Iodine supplementation resulted a significantly (P0.05) higher urine iodine content. The results indicated the probability of iodine and selenium deficiency in some flocks. Utilization of the supplements positively affected mineral status of ewes.
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