Effects of growth stages on the nutritive value of Lilium ledebourii in Kelardasht and Asalem

Lilium ledebourii (Baker) Boiss, with white aromatic flowers is a native rare species and the only National monument of Iran. This plant has medicinal, ornamental value and high economic potential as a new flower that is extremely endangered and as its wild populations are currently at risk of rapid eradication because of irregular grazing, pest and poaching. Tuse, the aim os this study was determining the nutritional value of L. ledebourii in vegetative, flowering and seeding phenological stages, samples were randomly collected including three replication and five plants from the aerial shoots of lily in Kelardasht and Asalem. And Nutritional Value indices including crude protein (CP), Acid detergent fiber (ADF), dry matter digestibility (DMD), metabolic energy (ME) were analyzed. The results of this study showed that the phonological stages have a significant effect on the nutritional value of Lily, and the nutritional value of vegetative stage is higher than of the other stages in both habitats. As Crude protein, dry matter digestibility and metabolic energy content decreased from early growth to the end of growth  and ADF increased significantly with the growth progress. Also the highest nutritional values were obtained from Kelardasht. It seems that nutritional value are affected by ecological factors changes such as the soil, direction, slope and altitude.