Research Institute of Forestes and Rangelands Iranian Journal of Range and Desert Research 1735-0875 15 1 2008 05 21 Study of phonological stages effect on nutritive values of twelve species in Hamadan rangelands Study of phonological stages effect on nutritive values of twelve species in Hamadan rangelands 42 50 103674 FA Hosein Arzani Mohammad Reza Sadeghi Manesh Hosein Azarnivand Ghasem Asadian Ehsan Shahriari Journal Article 2016 01 06 Determination of grazing capacity depends on information about various factors such as forage quality and species nutrient values, and for achieve to ideal animal production information about nutrient value are very important. In this trial, nutrient values of twelve species were to evaluate, that were grazed by Mehraban sheep in two phenological stages (vegetative and maturity) in two sites of AghDagh & Galebor at Hamadan province. Forage quality indices as Crude protein (CP), acid detergent fiber (minus Hemicelluloses) (ADF),dry matter digestibility (DMD) and metabolisable energy (ME) were measured respectively. According to the results, significant differences were observed among the species and phonological stages for all measured and calculated forage quality factors (p<0.05). Generally, Information about forage quality factors is essential for animal nutrition management in rangeland and it should be considered in range and animal management designs. <br />  Determination of grazing capacity depends on information about various factors such as forage quality and species nutrient values, and for achieve to ideal animal production information about nutrient value are very important. In this trial, nutrient values of twelve species were to evaluate, that were grazed by Mehraban sheep in two phenological stages (vegetative and maturity) in two sites of AghDagh & Galebor at Hamadan province. Forage quality indices as Crude protein (CP), acid detergent fiber (minus Hemicelluloses) (ADF),dry matter digestibility (DMD) and metabolisable energy (ME) were measured respectively. According to the results, significant differences were observed among the species and phonological stages for all measured and calculated forage quality factors (p<0.05). Generally, Information about forage quality factors is essential for animal nutrition management in rangeland and it should be considered in range and animal management designs. <br />  https://ijrdr.areeo.ac.ir/article_103674_45027a81be66cb5fb84afb686f144ba1.pdf