<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The aim of this research was to determine the influence of 56-days (from day 4 to day 60 post partum) of simultaneous supplementation of selenium (Se) and iodine (I) enriched <italic>Chlorella</italic> algae on blood and urine Se concentrations and thyroid hormone levels in ewes and lambs. The study included 18 Šumava sheep ewes and their lambs divided into three groups (CON, HSe, HSeI). Selenium and I content in the diet of ewes measured 0.2 and 0.7 mg (CON), 0.4 and 0.7 mg (HSe), 0.4 and 1.3 mg (HSeI) per kg of dry matter. During the experimental period a significantly higher blood serum Se concentration was determined in ewes of the HSeI group (P&lt; 0.001) and urine (P&lt; 0.01). A significantly higher (P&lt; 0.001) blood serum Se concentration was found also in lambs of the HSeI group. The highest Se concentration in the blood serum was recorded in ewes (128.0 μg/L) and lambs (74.2 μg/L) on the 26th day of the experiment. The results demonstrate a higher utilization of Se administered in the organic form accompanied by a higher intake of I applied also in the organic form. Plasma thyroid hormone levels in ewes were not explicitly affected by higher Se and I supplementation. A higher Se concentration in the lambs’ blood serum led to significantly higher (P&lt; 0.05) T3 levels up to 30 days post birth.</p></abstract>

The aim of this research was to determine the influence of 56-days (from day 4 to day 60 post partum) of simultaneous supplementation of selenium (Se) and iodine (I) enriched Chlorella algae on blood and urine Se concentrations and thyroid hormone levels in ewes and lambs. The study included 18 Šumava sheep ewes and their lambs divided into three groups (CON, HSe, HSeI). Selenium and I content in the diet of ewes measured 0.2 and 0.7 mg (CON), 0.4 and 0.7 mg (HSe), 0.4 and 1.3 mg (HSeI) per kg of dry matter. During the experimental period a significantly higher blood serum Se concentration was determined in ewes of the HSeI group (P< 0.001) and urine (P< 0.01). A significantly higher (P< 0.001) blood serum Se concentration was found also in lambs of the HSeI group. The highest Se concentration in the blood serum was recorded in ewes (128.0 μg/L) and lambs (74.2 μg/L) on the 26th day of the experiment. The results demonstrate a higher utilization of Se administered in the organic form accompanied by a higher intake of I applied also in the organic form. Plasma thyroid hormone levels in ewes were not explicitly affected by higher Se and I supplementation. A higher Se concentration in the lambs’ blood serum led to significantly higher (P< 0.05) T3 levels up to 30 days post birth.

Effect Of Organic Selenium And Iodine Supplementation On Selenium And Thyroid Hormones Status Of Lactating Ewes And Lambs

Faculty of Agriculture, University of South Bohemia in České Budějovice, Studentská 13, České Budějovice, Czech Republic

Acta Veterinaria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

EFEKTI SUPLEMENTACIJE ORGANSKIM SELENOM I JODOM NA STATUS SELENA I TIREOIDNIH HORMONA OVACA U LAKTACIJI I NJIHOVE JAGNJADI

The aim of this research was to determine the influence of 56-days (from day 4 to day 60 post partum) of simultaneous supplementation of selenium (Se) and...

Effect Of Organic Selenium And Iodine Supplementation On Selenium And Thyroid Hormones Status Of Lactating Ewes And Lambs

Published Online: Dec 22, 2015

Page range: 477 - 487

Received: Feb 11, 2015

Accepted: Jun 22, 2015

DOI: https://doi.org/10.1515/acve-2015-0040

Keywords
algae, iodine, selenium, sheep, thyroxine, triiodothyronine

© 2015 Konečný Roman et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effect Of Organic Selenium And Iodine Supplementation On Selenium And Thyroid Hormones Status Of Lactating Ewes And Lambs

Published Online: Dec 22, 2015

Page range: 477 - 487

Received: Feb 11, 2015

Accepted: Jun 22, 2015

DOI: https://doi.org/10.1515/acve-2015-0040

Keywordsalgae, iodine, selenium, sheep, thyroxine, triiodothyronine

© 2015 Konečný Roman et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
algae, iodine, selenium, sheep, thyroxine, triiodothyronine