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: Sánchez Salas, Jeffry, Elizondo Salazar, Jorge Alberto, Víquez 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 Evaluación de la suplementación con selenio orgánico y su efecto sobre el desempeño productivo y reproductivo de vacas lecheras en pastoreo en Costa Rica Sánchez Salas, Jeffry Elizondo Salazar, Jorge Alberto Víquez Matei, Evelio Orozco Vidaorreta, Carlos minerales traza leche leche enriquecida nutrición 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 μg.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 μg.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 suplementación con levadura selenizada, derivada de una cepa específica de Saccharomyces cerevisiae (CNCM I-3060), sobre el comporta- miento productivo y reproductivo y según las concentraciones de selenio en la leche de vacas lecheras en pastoreo. Vacas Holstein multíparas, (n=40) con un peso promedio de 607±62 kg y una condición corporal de 2,9±0,2 antes del parto, fueron asignadas al azar a 1 de 2 tratamientos. El tratamiento control consistió de una dieta basal que suministró 0,7 mg de Se.kg -1 MS. El trata- miento experimental consistió de la misma dieta basal suplementada con 3,0 mg de Se, del día 5 al 56 de lactancia. La producción y composición de la leche, el CCS y el contenido de Se en la leche se determinaron a los 5, 14, 28, 42 y 56 días de lactancia. También se tomaron muestras de sangre de cada animal durante los mismos días, para medir la glutatión peroxidasa (GSH-Px) y la concentración de Se. Para evaluar el desempeño reproductivo, los ovarios fueron examinados por ultrasonografía transrectal en los días 22 y 57 posparto. Días abiertos, días a primer servicio y servicios por concepción también fueron registrados. La producción y composición de la leche y el CCS no difirieron entre tratamientos durante el experimento. La suplementación con selenio no alteró la concentración de GSH-Px (199,0 vs. 220,3 U.g -1 de Hb) ni la concentración de Se en sangre (166,4 vs. 184,2 μg.l -1 ). No obstante, la suplementación con selenio orgáni- co aumentó (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 μg.l -1 ), por lo que la leche derivada de vacas suplementadas con levadura de Selenio podría ser una vía útil para contribuir a la ingesta diaria de Se en humanos, que permitieran alcanzar las recomendaciones dietéticas 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 Agronomía Costarricense Vol. 0 Núm. 0 application/pdf
institution Universidad de Costa Rica
collection Repositorio KERWA
language Español
topic minerales traza
leche
leche enriquecida
nutrición
ganado de leche
spellingShingle minerales traza
leche
leche enriquecida
nutrición
ganado de leche
Sánchez Salas, Jeffry
Elizondo Salazar, Jorge Alberto
Víquez 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 μg.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 μg.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 Sánchez Salas, Jeffry
Elizondo Salazar, Jorge Alberto
Víquez Matei, Evelio
Orozco Vidaorreta, Carlos
author_sort Sánchez 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_ 1673491702017425408
score 11.820457