Chemical composition, in vitro digestibility and kinetics of gas production of floiage of some Tunisian shrubs | Composition chimique, digestibilité in vitro et cinétique de production de gaz de feuillage de quelques arbustes Tunisiens
2005
Ammar, H.(Departamento de Producción Animal, Universidad de León, León, (Spain)) | Boubaker, A. | Kayouli, C. | López, S.
A mixture of leaves and fine green stems of Erica arborea, Myrtus communis, Phillyrea angustifolia, Pistacia lentiscus and Quercus suber, harvested in spring from the uplands of Taref in the delegation of Nefza (northwest of Tunisia), was analysed for its chemical composition and phenolic compounds. The in vitro dry matter digestibility (IVD) and volumes of gas produced, measured at 15 different incubation times (till 144 h) were also assessed. P. lentiscus showed the lowest crude protein content (CP), IVD and D144 (potential degradability) and the highest condensed tannins. Potential of gas production (A) was lower in Q. suber and higher in M. communis. On the basis of their crude protein contents and potential degradability, the ranking order of the shrub species was M. communisPh. angustifoliaE. arboreaQ. suberP. lentiscus. It was suggested that some of the studied browse species could be used as supplements to rations rich in highly degradable protein
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