Short term evolution of nutritionally relevant milk fatty acids of goats fed a cereal-based concentrate enriched with linseed oil
2019
Gómez-Cortés, Pilar | Cívico, Alfonso | Fuente, Miguel Ángel de la | Núñez Sánchez, Nieves | Peña Blanco, Francisco | Martínez Marín, A. L. | Ministerio de Economía y Competitividad (España)
Goat diet supplementation with linseed oil (LO) can be a fruitful technological strategy to enhance the nutritional value of milk fat. The objective of the present study was to determine the effect of LO in a basal diet rich in starch on goat milk fatty acid (FA) profile. The FA contents were monitored exhaustively during 24 h after LO supplementation or elimination by gas chromatography. Rumenic acid, the main conjugated linoleic acid isomer and α-linolenic acid, both related with bioactive properties, significantly rose in milk between 12 and 24 h after the inclusion of LO in the diet. On the contrary, medium-chain saturated FA decreased. Changes in other nutritionally relevant milk FA as well as short term effects caused by dietary LO suppression are discussed.
Show more [+] Less [-]This work was supported by the Ministerio de Economía y Competitividad (Project AGL2016-75159-C2-2-R). Pilar Gómez-Cortés was subsidized with a Juan de la Cierva research contract from the Ministerio de Economía y Competitividad.
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