Estimation of Nutritive Values of Some Range Species as Indicators for Rangelands Management

چکیده مقاله

Informat nutritive values during various phonological stages is of importance for the rangelands management. This information helpsrangeland managers to choose proper grazing times to achieve higher animal performancewith no det phenological stages and vegetation types on reserve carbohydrates and forage quality indicators were investigated during 2009 and 2010 in Sabzkooh rangelands at Charmahalprovince, Iran. Plant samples were collected based on a Completely Randomized Design (CRD) at 3 phonological stages (seedling, vegetative and flowering) with 5 replications. The species included grasses (Secale montanum and Festuca ovina), forbs (Lotus corniculatus and Sanguisorba minor) and shrubs (Kochia prosterata and Salsola rigida samples were harvested and oven-dried at 80 o C for 24 hours; then, they were analyzed fordetermining the amounts of Water Soluble Carbohydrates (WSC), Crude Protein (CP), Acid