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Title

Efecto de la suplementación de la dieta con aceites de girasol y pescado sobre el rendimiento productivo de los animales y el perfil de ácidos grasos de la leche de ovejas

Other TitlesEffect of diet supplementation whith sunflower and fish oils on animal performance and milk fatty acid profile in dairy ewes
AuthorsToral, Pablo G. ; Gómez-Cortés, Pilar ; Frutos, Pilar ; Fuente, Miguel Ángel de la ; Juárez, Manuela ; Hervás, Gonzalo
KeywordsLipid supplementation
PUFA
CLA
Milk fat depression
Sheep
Issue DateMay-2009
PublisherAsociación Interprofesional para el Desarrollo Agrario
CitationXIII Jornadas sobre Producción Animal (AIDA), ITEA. Tomo I: 283-285 (2009)
AbstractThis work was conducted to test the hypothesis that feeding a combination of sunflower oil plus fish oil would enhance the nutritional value of ovine milk without affecting animal performance. Thirty-two Assaf ewes were assigned to 2 treatments (2 lots of 8 animals per treatment): control (20:80 forage:concentrate ratio) or supplemented with 2% sunflower oil plus 1% fish oil (G+P), for 4 weeks. G+P diet remarkably increased the contents of cis-9 trans-11 C18:2 (from 0.73 to 3.00 g/100 g total fatty acids; FA) and trans-11 C18:1 (from 1.58 to 8.05 g/100 g total FA). Most changes in milk FA composition were addressed toward a healthier profile, resulting in a reduction of its atherogenicity index (-47%). However, oil supplementation decreased dry matter intake (-19%) and milk production (-14%), and affected milk composition, with reductions in protein (-8%) and fat contents (-13%). Milk fat reduction is discussed in terms of the joined action of several biohydrogenation intermediates.
Description3 págs, 2 tabs.-- Trabajo presentado a las XIII Jornadas sobre Producción Animal(AIDA. Zaragoza, 12-13 de mayo de 2009).
URIhttp://hdl.handle.net/10261/13200
ISSN1130-6009
Appears in Collections:(IFA) Comunicaciones congresos
(IF) Comunicaciones congresos
(IGM) Comunicaciones congresos
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