[Chemical analysis and in vitro organic matter disappearance of Avicennia marina and Salvadora persica leaves as camel forage in the Tuhama plain at Kingdom of Saudi Arabia]

alimentación alimentation arabia saudita arabie saoudite avicennia camello camels chameau chemical composition composición quimica composition chimique digestibilidad digestibility digestibilité feeding feuille hojas leaves materia orgánica matière organique organic matter saudi arabia