Efecto de la incorporación de ácido málico sobre la utilización digestiva de la dieta en ovinos
- L.F.J. Fernández 1
- J. González 1
- C.A. Rodríguez 1
- M.R. Alvir 1
- M. Ouarti 1
-
1
Universidad Politécnica de Madrid
info
- Fernando Forcada Miranda (coord.)
- Eduardo Angulo Asensio (coord.)
- José Antonio García de Jalón Ciércoles (coord.)
- Marcelo de las Heras Guillamón (coord.)
- Fernando López Gatius (coord.)
- Marianao Domingo Álvarez (coord.)
- Alfonso Abecia Martínez (coord.)
Publisher: Sociedad Española de Ovinotecnia y Caprinotecnia SEOC
Year of publication: 2004
Congress: Sociedad Española de Ovinotecnia y Caprinotecnia (SEOC). Jornadas (8. 2004. Lleida)
Type: Conference paper
Abstract
The effect of the malic acid incorporation on the digestive use of the diet in sheep was studied. A 3x3latin square design was used, comparing, on 3 animals, 3 diets including 0, 5.4 or 10.8 g of malic acid/kgconcentrate (T, T1 and T2, respectively). The diets were mixture of alfalfa hay and concentrate in a 45:55proportion. The concentrate only included soybean meal, barley and vitaminic-mineral complex. The malic acidwas previously applicated as protective agent in soybean meal at doses of 0.9 and 1.8 meq/g. The diet wasdistributed at a level of 50g DM/kg P0.75 in 6 daily meals. The treatment with malic acid didn't affect the rumenpH (mean 6.29), while the concentration of NH3 (mg N/100ml) decrease linearly at tendency level (P=0.083).There was not effect for the total VFA (mM/l), but a linear reduction was observed (P=0.092) for theacetic:propionic rate. The digestibility of organic matter, neutral and acid detergent fibre didn't presentdifferences among treatments. A linear (P=0.016) and quadratic (P=0.010) effects was observed for thedigestibility of the crude protein (81.8, 82.6 and 80.5% for T, T1 and T2, respectively).