Study of nutritional sources used by animal and poultry in the Fars province phase I:Evaluation oftwo range plants (Prangos ferulacea and Gundelia tournefortii.

The main objective of the present investigat!on was to analyse the 9hemical composition, and, digestiblility coefficient of two range plants: Prangos ferulacea and Gundelia toumefortii. The chemical complsition and digestion coefficient of different feeds were analysed by Proximate analysis (weende) method and by direct collection of animal feces(INvivo). 216 samples of these two range of plants were gathered at three growth stages pre flowering and dry stage, from three different climates: cold, moderate and warm. cold climate samples were gathered from three locations: range research state, controlled ranges and uncontrolled ranges. In two other climates, samples only were gathered from uncontrolled ranges. All samples were gathered,using systematic randomized method.The results were obtained as follow: the percentage of moisture (MO), crude protein (CP), ether extract (EE), nitrogen free extract (NFE), crude fiber (CF), Ash, calcium (ca) and phosphorus (p) of Prangos ferulacea at pre flowering period were 10.53,12.94,2.68,46.31,17.09,10.72,1.22 and 0.4, at flowering per iod were 11.27,11.69,2.62,42,03.19.53,12.89,1.36 and 0.26 and at dry stage period were 10.G3,4.01,2.14,47.18,22.05,13.95,1.69 and 0.09 respectively. With growing of prangos ferulacea, CP and P had decreased whereas CF and ash had increased significantly(PO.01). The percentage of Mo, Cp, EE, NFE, CF, ash, ca and P of Gundelia tournefortii samples at pre flowering period were 10.23,17,24.1.69,37.9,19.27,13.65,1.5 and 0.54, at flowering period were 11,11.34,2.09,37.3,26.68,11.65,1.13 and 0.21 and at drystage period were 9.61, 4.02, 1.94, 35.84, 38, 10.58, 1.33 and 0.1 respectively. with growing of Gundelia loumefortii, (cp),(P) and (ash), had decreased but (cF) had increased significantly (P0.01). Different growth st:'lges had significant effects on all ana lysed parameters (PO.01) in two range plants, with except in (EE). Different climates had no significant effects on analysis of two range plants. Different locations for sampling had significant effects on (CP) and (P) of Prangos ferulacea (PO.05), There were no significant differences in other analysed parameters of Prangos ferulacea and all analysed parameters of Gundelia tournefortii-. In digestion trial, digestibility CbMiCienCpercEfnt of Drymatter (DM~'Cp, EE, NFE. CF, organic matter (OM). total digestible nutrient (TON), digestible energy (DE) and metabolizable energ;' U,,1t:) (~~::;Ci'/kg) of Prangos ferulacea at preflowering period were 71.9, 70.08,70.71,84.88,56.68, \}4.78, 58.69, 2.58 and 2.12, at flowering period were 67.09, 69.91, 60.59, 80.47, 48.24, 73.2G, 55.92 and 2.46, 2.02 respectively. digestibility coefficient of drystage period of PnmJ5us fcrulacea were not determind, In cause of inavailibility of this period of ['rangos fcr:i;"lC::.~ i;) nature. Digestibility coefficient percent of OM, CP, EE, NFE, CF, OM, TON, DE and j.lE of GUlldelia toumefortii at pre flowering period were 72.62, 75.44, 85.83 77.96, 67.06/'3.89, 54.47, 2.62, and 2.15, at flowering period were 68.33, 66.5, 70, 74.17, 69.47 ,70.25, :JJ.1, 2.6 and 2.13, at drystage period were 71.41, 68.05, 79.08, 65,67. 76.91, 69.68, ~.".J.:;~, 2.41 and 2.03 respectively. Different growth stages had no significant effects on digc;stibility coefficient of two rang plants. Different climates had significant effects Oil ":igE.:s:,biUty coefficent of EE(P0.01) and OM(PO.05) of Prangos ferulacea but there were r,o significant differences in other analysed parameters of Prangos ferulacea and all anal)'sed parameters of GUlldelia tourneJortii. Keyword: Prangos ferulacea , Gundelia tournefortii , Animal Nutrition , Chemical Compound , Nutritive Value.