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handle: 10261/113761
[ES] Cuarenta corderos (PVI 14.6 kg) se distribuyeron en 4 grupos, cada uno recibiendo a voluntad un pienso compuesto completo con diferente contenido de flores de lúpulo: 0 % (Control), 0,15 % (LUP15), 0,30 % (LUP30), 0,60 % (LUP60). Tras el sacrificio (27 kg PV) se tomaron muestras de líquido ruminal para determinar pH y concentración de ácidos grasos volátiles y amoniaco. Se realizó una prueba de fermentación ruminal in vitro utilizando como inóculo líquido ruminal de animales del grupo Control y, como sustrato, los piensos mencionados. El líquido ruminal de los animales de los grupos LUP30 y LUP60 presentó una menor concentración de ácido propiónico (P24 h) para que se manifiesten los efectos.
[EN]Forty lambs (ILW 14.6 kg) were divided into 4 groups, each receiving a TMR with different content of hop flowers: 0 % (Control), 0.15 % (LUP15), 0.3 % (LUP30), 0.6 % (LUP60). Rumen fluid samples were taken after slaughtering (27 kg BW) to determine pH and volatile fatty acids and ammonia concentrations. In vitro gas production technique was used to test the effects of hop addition to TMR when using rumen fluid from Control lambs as inoculum. Rumen fluid from LUP30 and LUP60 animals had lower propionic acid (P24 h) is required for the effects to become apparent.
Proyecto CYCIT (AGL2010-19094) e Intramural CSIC (201240E105). C. Blanco es beneficiaria de un contrato predoctoral de la Junta de Castilla y León y el Fondo Social Europeo, M.L. Tejido de un contrato JAE-doc financiado por el CSIC bajo el programa ‘Junta de Ampliación de Estudios’ (CSIC- Fondo Social Europeo) y J.A. Cayetano de una beca CONACYT financiada por el Gobierno Federal de México.
6 páginas, 2 tablas.--Trabajo presentado a las XXXIX Congreso Nacional y XV Internacional de la Sociedad Española de Ovinotecnia y Caprinotecnia (SEOC), (Ourense, 17-19 de septiembre de 2014).
Peer reviewed
Lúpulo, Äcidos grasos volátiles, Rumen, Hop, Ammonia, Volatile fatty acids, Amoníaco
Lúpulo, Äcidos grasos volátiles, Rumen, Hop, Ammonia, Volatile fatty acids, Amoníaco
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