Effect of selenium and lodine supplementation on ...

Description

Citation

Title Effect of selenium and lodine supplementation on growth rate and on thyroid and somatotropic function in dairy calves at pasture
Author(s) Jeffrey Wichtel, A. L. Craigie, D. A. Freeman, H. Varela-Alvarez, N. B. Williamson
Journal Journal of Dairy Science
Date 1996
Volume 79
Issue 10
Start page 1865
End page 1872
Abstract The effects of Se and I supplementation on growth rate and on thyroid and somatotropic function were examined for heifer calves from two herds fed pasture. Supplementation of calves with intraruminal Se pellets increased the basal plasma concentration of 3,5,3'-triiodothyronine and reduced the basal plasma concentration of thyroxine for both herds. For one herd, supplementation with Se increased the triiodothyronine response to challenge with thyrotropin-releasing hormone, increased BW gain, and tended to increase the plasma concentration of IGF-I. The plasma concentration of growth hormone was unaffected by Se supplementation. Supplementation with I increased the response of thyroid hormones to thyrotropin-releasing hormone but did not increase BW gain. Interaction between Se and I treatment within the herds was not apparent for any outcome variable. These data suggest that the effects of Se deficiency in grazing calves may be mediated by alterations in thyroid hormone metabolism but apparently are not mediated through modulation of the peripheral concentration of growth hormone.

Using APA 6th Edition citation style.

[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]

Times viewed: 192

Adding this citation to "My List" will allow you to export this citation in other styles.