بررسی تعیین ترکیبات شیمیایی و قابلیت هضم گیاهان غالب خانواده گرامینه مراتع استان کرمان

‭In order to determine the chemical compositions and digestibility of dominant gamine family rang in Kennan province in 1998, Some species include : Step barbate, Bromes decorum , Stipagrostis plumose , Bromus danthonia, Taeniatherium crinitum , Stipa capensis , Aeluropus littoralis and Aeluropus lagopoides were collected from different part of kerman province. Parts are Kerman , Sirjan , Bardsir , Bam , Jiroft , Shahr -e‬ص‭babak , Baft , Shahdad , Kahnuj ,Zarand , Ab-barik of Barn and Jazmorian of kahnooj. The result of this study showed: The lowest CP (7. 52%) was in Taeniatherium crinitum and the highest CP (10. 14%) was in Aeluropus lagopoides. The highest Percentage ofNDF was in Stipa barbata (80. 55%) and Stipagrostis plumosa(78. 69%) and the Lowest percentage ofNDF was in Aeluropus lagopoides(66. 90%). In all species as the plants matured, percentage of NDF increased. The comparison of gross energy between species showed that the lowest GE was 4072. 3Kcal/kg in Taeniatherium crinitum and highest GE was 4172. 3 Kcallkg in Aeluropus lagopoides. lnvitro digestibility showed that DDM changed from 33. 67% in Stipa capensis to 63. 55% in Bromus tectorum, also there was negative correlation between ADF with DDM.‬