Feeding extruded linseed to dairy ewes under extensive grazing conditions

The aim of this trial was to evaluate the effect of dietary supplementation of extruded linseed on the milk and cheese fatty acid (FA) profiles of ewes under extensive grazing conditions. Over 26 days, a group of nine lactating ewes (Latxa × Milchschaf × Corriedale) in mid-lactation were managed und...

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Autores principales:	Vargas-Bello-Pérez,Einar, Vera,Raúl R, Aguilar,Claudio, Lira,Rodrigo, Peña,Iván, Tello,Franco. A
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2014
Materias:	Extruded linseed n-3 fatty acids cheese ewe milk
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202014000100011
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spelling	oai:scielo:S0718-162020140001000112014-10-10Feeding extruded linseed to dairy ewes under extensive grazing conditionsVargas-Bello-Pérez,EinarVera,Raúl RAguilar,ClaudioLira,RodrigoPeña,IvánTello,Franco. A Extruded linseed n-3 fatty acids cheese ewe milk The aim of this trial was to evaluate the effect of dietary supplementation of extruded linseed on the milk and cheese fatty acid (FA) profiles of ewes under extensive grazing conditions. Over 26 days, a group of nine lactating ewes (Latxa × Milchschaf × Corriedale) in mid-lactation were managed under grazing conditions and given supplements during each manual milking (0830 and 1800 h) of 50% corn and 50% oats (500 g ewe-1 milking-1; control, TC) for the first 6 days. From day 7 to 20, the supplement was 25% corn, 25% oats and 50% extruded linseed (500 g ewe-1 milking-1) (extruded linseed; TEL). From day 21 to 26, the ewes were fed TC. The saturated FA content in milk was reduced (3.6%), and the monounsaturated, polyunsaturated and n-3 FA (7, 10 and 25%, respectively) were increased when the ewes were supplemented with extruded linseed. A correlation between rumenic acid with vaccenic acid (R²=0.68) was found in the milk fat from ewes fed TEL. In cheese obtained from TEL, the contents of n-3 and polyunsaturated FA were increased (21 and 7%, respectively). In conclusion, a supplement of extruded linseed in ewes under grazing conditions could be an alternative lipid source to produce cheese with additional nutritional value. However, the effect of extruded linseed supplementation in ewes under the same conditions with longer experimental periods and a more suitable statistical design must be investigated.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.41 n.1 20142014-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202014000100011en10.4067/S0718-16202014000100011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Extruded linseed n-3 fatty acids cheese ewe milk
spellingShingle	Extruded linseed n-3 fatty acids cheese ewe milk Vargas-Bello-Pérez,Einar Vera,Raúl R Aguilar,Claudio Lira,Rodrigo Peña,Iván Tello,Franco. A Feeding extruded linseed to dairy ewes under extensive grazing conditions
description	The aim of this trial was to evaluate the effect of dietary supplementation of extruded linseed on the milk and cheese fatty acid (FA) profiles of ewes under extensive grazing conditions. Over 26 days, a group of nine lactating ewes (Latxa × Milchschaf × Corriedale) in mid-lactation were managed under grazing conditions and given supplements during each manual milking (0830 and 1800 h) of 50% corn and 50% oats (500 g ewe-1 milking-1; control, TC) for the first 6 days. From day 7 to 20, the supplement was 25% corn, 25% oats and 50% extruded linseed (500 g ewe-1 milking-1) (extruded linseed; TEL). From day 21 to 26, the ewes were fed TC. The saturated FA content in milk was reduced (3.6%), and the monounsaturated, polyunsaturated and n-3 FA (7, 10 and 25%, respectively) were increased when the ewes were supplemented with extruded linseed. A correlation between rumenic acid with vaccenic acid (R²=0.68) was found in the milk fat from ewes fed TEL. In cheese obtained from TEL, the contents of n-3 and polyunsaturated FA were increased (21 and 7%, respectively). In conclusion, a supplement of extruded linseed in ewes under grazing conditions could be an alternative lipid source to produce cheese with additional nutritional value. However, the effect of extruded linseed supplementation in ewes under the same conditions with longer experimental periods and a more suitable statistical design must be investigated.
author	Vargas-Bello-Pérez,Einar Vera,Raúl R Aguilar,Claudio Lira,Rodrigo Peña,Iván Tello,Franco. A
author_facet	Vargas-Bello-Pérez,Einar Vera,Raúl R Aguilar,Claudio Lira,Rodrigo Peña,Iván Tello,Franco. A
author_sort	Vargas-Bello-Pérez,Einar
title	Feeding extruded linseed to dairy ewes under extensive grazing conditions
title_short	Feeding extruded linseed to dairy ewes under extensive grazing conditions
title_full	Feeding extruded linseed to dairy ewes under extensive grazing conditions
title_fullStr	Feeding extruded linseed to dairy ewes under extensive grazing conditions
title_full_unstemmed	Feeding extruded linseed to dairy ewes under extensive grazing conditions
title_sort	feeding extruded linseed to dairy ewes under extensive grazing conditions
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202014000100011
work_keys_str_mv	AT vargasbelloperezeinar feedingextrudedlinseedtodairyewesunderextensivegrazingconditions AT veraraulr feedingextrudedlinseedtodairyewesunderextensivegrazingconditions AT aguilarclaudio feedingextrudedlinseedtodairyewesunderextensivegrazingconditions AT lirarodrigo feedingextrudedlinseedtodairyewesunderextensivegrazingconditions AT penaivan feedingextrudedlinseedtodairyewesunderextensivegrazingconditions AT tellofrancoa feedingextrudedlinseedtodairyewesunderextensivegrazingconditions
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Feeding extruded linseed to dairy ewes under extensive grazing conditions

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