Supplementation with organic selenium and its effect on productive and reproductive performance in grazing dairy cows in Costa Rica

The objective was to evaluate the effect of supplementation with selenized yeast, derived from a specific strain of Saccharomyces cerevisiae (CNCM I-3060), on productive and reproductive performance and on selenium concentrations in milk of grazing dairy cows. Multiparous Holstein cows (n=40), with...

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Main Authors: S?nchez Salas, Jeffry, Elizondo Salazar, Jorge Alberto, V?quez Matei, Evelio, Orozco Vidaorreta, Carlos
Format: Artículo
Language: Español
Published: 2015
Subjects:
Online Access: http://revistas.ucr.ac.cr/index.php/agrocost/article/view/15115
http://hdl.handle.net/10669/13982
id RepoKERWA13982
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spelling RepoKERWA139822017-08-08T18:50:26Z Supplementation with organic selenium and its effect on productive and reproductive performance in grazing dairy cows in Costa Rica Evaluaci?n de la suplementaci?n con selenio org?nico y su efecto sobre el desempe?o productivo y reproductivo de vacas lecheras en pastoreo en Costa Rica S?nchez Salas, Jeffry Elizondo Salazar, Jorge Alberto V?quez Matei, Evelio Orozco Vidaorreta, Carlos minerales traza leche leche enriquecida nutrici?n ganado de leche The objective was to evaluate the effect of supplementation with selenized yeast, derived from a specific strain of Saccharomyces cerevisiae (CNCM I-3060), on productive and reproductive performance and on selenium concentrations in milk of grazing dairy cows. Multiparous Holstein cows (n=40), with an average body weight of 607?62 kg and a body condition score of 2.9?0.2 before parturition, were randomly assigned to 1 of 2 treatments. Control treatment consisted of a basal diet supplying 0.7 mg of Se.kg -1 dry matter. Experimental treatment consisted of the same basal diet supplemented with 3.0 mg of Se, from day 5 to 56 of lactation. Milk production, milk composition, SCC, and Se content of milk were determined at day 5, 14, 28, 42, and 56 of lactation. Blood samples from each cow were also taken during the same days, to measure glutathione peroxidase (GSH-Px) and Se concentration. To evaluate reproductive performance, the ovaries were examined by transrectal ultrasonography at days 22 and 57 postpartum. Days open, days to first service and services per conception were also recorded. Milk production, milk composition, and SCC did not differ between treatments during the trial. Selenium supplementation did not alter GSH-Px concentration (199.0 vs. 220.3 U.g -1 Hb) or Se concentration in blood (166.4 vs. 184.2 ?g.l -1 ). However, organic selenium supplementation increased (p<0.01) Se apparent efficiency of transfer into milk (7.9 vs. 9.9%) and Se content of milk (12.7 vs. 20.5 ?g.l -1 ); therefore, milk derived from cows supplemented with selenized yeast could be a useful way to contribute to daily intake of Se in humans, allowing to reach the daily dietary recommendations and helping as a functional food to solve problems related to Se deficiency. El objetivo fue evaluar el efecto de la suplementaci?n con levadura selenizada, derivada de una cepa espec?fica de Saccharomyces cerevisiae (CNCM I-3060), sobre el comporta- miento productivo y reproductivo y seg?n las concentraciones de selenio en la leche de vacas lecheras en pastoreo. Vacas Holstein mult?paras, (n=40) con un peso promedio de 607?62 kg y una condici?n corporal de 2,9?0,2 antes del parto, fueron asignadas al azar a 1 de 2 tratamientos. El tratamiento control consisti? de una dieta basal que suministr? 0,7 mg de Se.kg -1 MS. El trata- miento experimental consisti? de la misma dieta basal suplementada con 3,0 mg de Se, del d?a 5 al 56 de lactancia. La producci?n y composici?n de la leche, el CCS y el contenido de Se en la leche se determinaron a los 5, 14, 28, 42 y 56 d?as de lactancia. Tambi?n se tomaron muestras de sangre de cada animal durante los mismos d?as, para medir la glutati?n peroxidasa (GSH-Px) y la concentraci?n de Se. Para evaluar el desempe?o reproductivo, los ovarios fueron examinados por ultrasonograf?a transrectal en los d?as 22 y 57 posparto. D?as abiertos, d?as a primer servicio y servicios por concepci?n tambi?n fueron registrados. La producci?n y composici?n de la leche y el CCS no difirieron entre tratamientos durante el experimento. La suplementaci?n con selenio no alter? la concentraci?n de GSH-Px (199,0 vs. 220,3 U.g -1 de Hb) ni la concentraci?n de Se en sangre (166,4 vs. 184,2 ?g.l -1 ). No obstante, la suplementaci?n con selenio org?ni- co aument? (p<0,01) la eficiencia aparente de transferencia de Se a la leche (7,9 vs. 9,9%) y el contenido de Se (12,7 vs. 20,5 ?g.l -1 ), por lo que la leche derivada de vacas suplementadas con levadura de Selenio podr?a ser una v?a ?til para contribuir a la ingesta diaria de Se en humanos, que permitieran alcanzar las recomendaciones diet?ticas diarias que contribuyan como alimento funcional a solventar problemas relacionados con la deficiencia de este nutriente. 2015-06-09T22:16:22Z 2015-06-09T22:16:22Z 2014-07-04 19:53:45 2015-06-09T22:16:22Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://revistas.ucr.ac.cr/index.php/agrocost/article/view/15115 http://hdl.handle.net/10669/13982 es Agronom?a Costarricense Vol. 0 N?m. 0 application/pdf
institution Universidad de Costa Rica
collection Repositorio KERWA
language Español
topic minerales traza
leche
leche enriquecida
nutrici?n
ganado de leche
spellingShingle minerales traza
leche
leche enriquecida
nutrici?n
ganado de leche
S?nchez Salas, Jeffry
Elizondo Salazar, Jorge Alberto
V?quez Matei, Evelio
Orozco Vidaorreta, Carlos
Supplementation with organic selenium and its effect on productive and reproductive performance in grazing dairy cows in Costa Rica
description The objective was to evaluate the effect of supplementation with selenized yeast, derived from a specific strain of Saccharomyces cerevisiae (CNCM I-3060), on productive and reproductive performance and on selenium concentrations in milk of grazing dairy cows. Multiparous Holstein cows (n=40), with an average body weight of 607?62 kg and a body condition score of 2.9?0.2 before parturition, were randomly assigned to 1 of 2 treatments. Control treatment consisted of a basal diet supplying 0.7 mg of Se.kg -1 dry matter. Experimental treatment consisted of the same basal diet supplemented with 3.0 mg of Se, from day 5 to 56 of lactation. Milk production, milk composition, SCC, and Se content of milk were determined at day 5, 14, 28, 42, and 56 of lactation. Blood samples from each cow were also taken during the same days, to measure glutathione peroxidase (GSH-Px) and Se concentration. To evaluate reproductive performance, the ovaries were examined by transrectal ultrasonography at days 22 and 57 postpartum. Days open, days to first service and services per conception were also recorded. Milk production, milk composition, and SCC did not differ between treatments during the trial. Selenium supplementation did not alter GSH-Px concentration (199.0 vs. 220.3 U.g -1 Hb) or Se concentration in blood (166.4 vs. 184.2 ?g.l -1 ). However, organic selenium supplementation increased (p<0.01) Se apparent efficiency of transfer into milk (7.9 vs. 9.9%) and Se content of milk (12.7 vs. 20.5 ?g.l -1 ); therefore, milk derived from cows supplemented with selenized yeast could be a useful way to contribute to daily intake of Se in humans, allowing to reach the daily dietary recommendations and helping as a functional food to solve problems related to Se deficiency.
format Artículo
author S?nchez Salas, Jeffry
Elizondo Salazar, Jorge Alberto
V?quez Matei, Evelio
Orozco Vidaorreta, Carlos
author_sort S?nchez Salas, Jeffry
title Supplementation with organic selenium and its effect on productive and reproductive performance in grazing dairy cows in Costa Rica
title_short Supplementation with organic selenium and its effect on productive and reproductive performance in grazing dairy cows in Costa Rica
title_full Supplementation with organic selenium and its effect on productive and reproductive performance in grazing dairy cows in Costa Rica
title_fullStr Supplementation with organic selenium and its effect on productive and reproductive performance in grazing dairy cows in Costa Rica
title_full_unstemmed Supplementation with organic selenium and its effect on productive and reproductive performance in grazing dairy cows in Costa Rica
title_sort supplementation with organic selenium and its effect on productive and reproductive performance in grazing dairy cows in costa rica
publishDate 2015
url http://revistas.ucr.ac.cr/index.php/agrocost/article/view/15115
http://hdl.handle.net/10669/13982
_version_ 1650735713241530368
score 11.754696