Serum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate

Background: Barium selenate is an inorganic source of selenium (Se) used in prolonged-release preparations to treat selenium deficiency in bovines. Objective: To evaluate serum concentrations of triiodothyronine (T3) and thyroxine (T4) hormones in newborn calves from mothers supplemented with barium...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Víctor R. Leyán, Ricardo H. Chihuailaf, Fernando G. Wittwer
Formato:	article
Lenguaje:	EN
Publicado:	Universidad de Antioquia 2020
Materias:	barium selenate bovine calves cows glutathione peroxidase mineral nutrition selenium supplementation thyroid hormones thyroxine triiodothyronine Animal culture SF1-1100
Acceso en línea:	https://doaj.org/article/cc9b0ebd271542a5b9f932a68c82c552
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:cc9b0ebd271542a5b9f932a68c82c552
record_format	dspace
spelling	oai:doaj.org-article:cc9b0ebd271542a5b9f932a68c82c5522021-12-01T15:08:03ZSerum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate2256-295810.17533/udea.rccp.v34n2a03https://doaj.org/article/cc9b0ebd271542a5b9f932a68c82c5522020-09-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/rccp/article/view/343748https://doaj.org/toc/2256-2958Background: Barium selenate is an inorganic source of selenium (Se) used in prolonged-release preparations to treat selenium deficiency in bovines. Objective: To evaluate serum concentrations of triiodothyronine (T3) and thyroxine (T4) hormones in newborn calves from mothers supplemented with barium selenate during prepartum. Methods: Six black Frisian pregnant cows were supplemented with barium selenate subcutaneously during the last two months of gestation, until calving. Six cows were used as controls. All cows were subjected to a low Se diet, consisting of hay from natural pasture and commercial concentrate lacking Se. The Se balance was measured through the activity of erythrocyte glutathione peroxidase (GPx). Serum concentration of T3 and T4 in calves was determined by electrochemiluminescence. Results: Se supplementation during prepartum increased GPx activity in cows from day 45 post-supplementation (p<0.05). Calves from supplemented mothers showed higher average serum Se concentration than calves from non-supplemented mothers. The average concentration of T3 in the calves from supplemented mothers was lower in the first hour of life (p<0.05) compared with calves from mothers of the non-supplemented group. A decrease (p<0.05) in T4 serum concentrations was observed in both groups at seven days of age. Conclusions: Administration of barium selenate to cows during prepartum generates a reduction in serum concentration of T3 in the first hour of life of calves.Víctor R. LeyánRicardo H. ChihuailafFernando G. WittwerUniversidad de Antioquiaarticlebarium selenatebovinecalvescowsglutathione peroxidasemineral nutritionseleniumsupplementationthyroid hormonesthyroxinetriiodothyronineAnimal cultureSF1-1100ENRevista Colombiana de Ciencias Pecuarias, Vol 34, Iss 2, Pp 145-153 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	barium selenate bovine calves cows glutathione peroxidase mineral nutrition selenium supplementation thyroid hormones thyroxine triiodothyronine Animal culture SF1-1100
spellingShingle	barium selenate bovine calves cows glutathione peroxidase mineral nutrition selenium supplementation thyroid hormones thyroxine triiodothyronine Animal culture SF1-1100 Víctor R. Leyán Ricardo H. Chihuailaf Fernando G. Wittwer Serum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate
description	Background: Barium selenate is an inorganic source of selenium (Se) used in prolonged-release preparations to treat selenium deficiency in bovines. Objective: To evaluate serum concentrations of triiodothyronine (T3) and thyroxine (T4) hormones in newborn calves from mothers supplemented with barium selenate during prepartum. Methods: Six black Frisian pregnant cows were supplemented with barium selenate subcutaneously during the last two months of gestation, until calving. Six cows were used as controls. All cows were subjected to a low Se diet, consisting of hay from natural pasture and commercial concentrate lacking Se. The Se balance was measured through the activity of erythrocyte glutathione peroxidase (GPx). Serum concentration of T3 and T4 in calves was determined by electrochemiluminescence. Results: Se supplementation during prepartum increased GPx activity in cows from day 45 post-supplementation (p<0.05). Calves from supplemented mothers showed higher average serum Se concentration than calves from non-supplemented mothers. The average concentration of T3 in the calves from supplemented mothers was lower in the first hour of life (p<0.05) compared with calves from mothers of the non-supplemented group. A decrease (p<0.05) in T4 serum concentrations was observed in both groups at seven days of age. Conclusions: Administration of barium selenate to cows during prepartum generates a reduction in serum concentration of T3 in the first hour of life of calves.
format	article
author	Víctor R. Leyán Ricardo H. Chihuailaf Fernando G. Wittwer
author_facet	Víctor R. Leyán Ricardo H. Chihuailaf Fernando G. Wittwer
author_sort	Víctor R. Leyán
title	Serum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate
title_short	Serum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate
title_full	Serum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate
title_fullStr	Serum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate
title_full_unstemmed	Serum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate
title_sort	serum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate
publisher	Universidad de Antioquia
publishDate	2020
url	https://doaj.org/article/cc9b0ebd271542a5b9f932a68c82c552
work_keys_str_mv	AT victorrleyan serumconcentrationofthyroxineandtriiodothyronineinnewborncalvesfromcowssupplementedwithbariumselenate AT ricardohchihuailaf serumconcentrationofthyroxineandtriiodothyronineinnewborncalvesfromcowssupplementedwithbariumselenate AT fernandogwittwer serumconcentrationofthyroxineandtriiodothyronineinnewborncalvesfromcowssupplementedwithbariumselenate
_version_	1718404896821084160

Serum concentration of thyroxine and triiodothyronine in newborn calves from cows supplemented with barium selenate

Ejemplares similares