Effects of increased iodine supply on the selenium status of kids

L. Pavlata, S. Slosarkova, P. Fleischer and A. Pechova
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L. Pavlata: Clinic of Diseases of Ruminants,
S. Slosarkova: Department of Physiology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
P. Fleischer: Clinic of Diseases of Ruminants,
A. Pechova: Clinic of Diseases of Ruminants,

Veterinární medicína, 2005, vol. 50, issue 5, 186-194

Abstract: The aim of the study was to monitor the effect of increased iodine supplementation of the clinically healthy kid organism on the selenium status. The study included 7 clinically healthy 14-day-old kids from mothers with high iodine supplementation (group E) and 7 clinically healthy kids from mothers with hypoiodaemia (group C). Kids in group E were administered potassium iodide orally from 14 to 90 days of age. During the experimental period, the group E kids had a total daily iodine intake (from the feeding ration and from the per os potassium iodide administration) of 440-590 µg per head and day in comparison with 140-190 µg per head and day in the group C kids (only from the feeding ration; no potassium iodide administration). In kids of both groups, selenium concentration (Se), glutathione peroxidase activity (GSH-Px), concentration of the thyroid gland hormones (T3 and T4) and animal weights were monitored. In the group E kids, lower Se concentration (88.1 ± 10.9 µg/l; p < 0.01) and lower activity of GSH-Px (484.0 ± 125.4 µkat/l; p < 0.05) were proved at the end of the experiment (at 105 days of age of the kids) in comparison with the group C kids (131.8 ± 23.2 µg/l and 713.3 ± 153.3 µkat/l, respectively). No significant differences were found out in the T3 or T4 concentrations or in the weights of animals of both groups. The results indicate that increased iodine supplementation may have a negative effect on selenium metabolism and/or selenium status in kids.

Keywords: goat; trace elements; interaction; glutathione peroxidase; thyroid hormones (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (2)

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DOI: 10.17221/5614-VETMED

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