Determination of Nutritional Value in Three Forage Species in Three Phonological Stages in Sabalan Rangelands, Ardebil, Iran
نویسندگان
چکیده مقاله:
In order to estimate the nutrient value of three dominant range species; Festucaovina, Trifolium montanum and Alopecurus textilis via proximate analyses and gas productiontechnique, samples were collected in three stages during grazing period from 26th May to 1thSeptember in six areas of Sabalan Mountain in North West of Iran. Results showed thatTrifolium montanum as a legume had higher values for Crude Protein (CP), total ASH,Organic Matter Digestibility (OMD), Metabolizable Energy (ME) and gas production at 24hours and showed lower values for ADF (Acid Detergent Fiber) and NDF (Neutral DetergentFiber) as compared to two other species that were considered as gramineae. Variation ofquality traits in Trifolium montanum was lower than two other species. The obtained values ofCP, NDF, ADF, ASH, EE, OMD, gas production and Dry Matter (DM) for Trifoliummontanum were 18.65%, 41.83%, 26.97%, 8.95%, 0.26%, 64.50% g/kg and 50.96 ml/200mg,respectively. For Festuca ovina, they were 9.37%, 68.63%, 36.87%, 6.77%, 0.58%, 53.82%and 40.04 ml/200mg DM and for Alopecurus textilis, they obtained 5.01%, 73.03%, 42.18%,5.97%, 0.56%, 55.63 % and 35.46 ml/200mg DM, respectively. The values of ME predictionthat were calculated via Menke equation for Trifolium montanum, Festuca ovina andAlopecurus textilis were 2.31, 1.93 and 1.75 Mcal/kg DM, respectively. The mean level ofpredicted CP, ME and OMD for plants, especially in grasses (Festuca ovina and Alopecurustextilis) throughout the year, second and third stages of sampling (mid and late summer) andcomparing the nutrient requirements of Moghanian sheep (native breed in Ardabil province)with these data show that only at early stage of sampling (late spring and early summer), onecan supply sufficient nutrient for domestics whereas the ewes are pregnant at mid and end ofsummer and these nutrients are insufficient for them therefore, we have recommended the useof supplementary feeding in diets of grazing ewes for ideal productivity performance.
منابع مشابه
determination of nutritional value in three forage species in three phonological stages in sabalan rangelands, ardebil, iran
in order to estimate the nutrient value of three dominant range species; festucaovina, trifolium montanum and alopecurus textilis via proximate analyses and gas productiontechnique, samples were collected in three stages during grazing period from 26th may to 1thseptember in six areas of sabalan mountain in north west of iran. results showed thattrifolium montanum as a legume had higher values ...
متن کاملForage Quality of Calligonum comosum in Three Phenological Growth Stages (Case study: Kashan Rangelands, Iran)
Determination of forage quality of plant species in natural habitats such as rangelands and deserts is one of the most important factors for grazing management of these ecosystems. For this purpose, the nutritional values of Calligonum comosum in three phenological stages (vegetative growth, flowering, and seedling) were determined in desert habitats located in the northeast of Kashan, Iran (in...
متن کاملanalyzing patterns of classroom interaction in efl classrooms in iran
با به کار گیری روش گفتما ن شنا سی در تحقیق حا ضر گفتا ر میا ن آموزگا را ن و زبا ن آموزا ن در کلا سهای زبا ن انگلیسی در ایرا ن مورد بررسی قرار گرفت. ا هداف تحقیق عبا رت بودند از: الف) شنا سا ئی سا ختارهای ارتبا ط گفتا ری میا ن معلمین و زبا ن آموزا ن ب) بررسی تا ثیر نقش جنسیت دبیرا ن و زبا ن آموزان بر سا ختا رهای ارتبا ط گفتا ری میا ن آنها پ) مشخص کردن اینکه آ یا آموزگاران غا لب بر این ارتبا ط گف...
Forage quality of three life forms of rangeland species in semi arid and semi humid regions in different phenological stages
For determination of grazing capacity, information of forage quality is essential which is influenced by various factors. The main objective of this research was investigation on effects of species, phenological stages, and life form on values of forage quality indices of six range species. Species were two grasses (Bromus tomentellus and Dactylis glomerata), two forbs (Ferula ovina and Coronil...
متن کاملthe impact of e-readiness on ec success in public sector in iran the impact of e-readiness on ec success in public sector in iran
acknowledge the importance of e-commerce to their countries and to survival of their businesses and in creating and encouraging an atmosphere for the wide adoption and success of e-commerce in the long term. the investment for implementing e-commerce in the public sector is one of the areas which is focused in government‘s action plan for cross-disciplinary it development and e-readiness in go...
high volatility, thick tails and extreme value theory in value at risk estimation: the case of liability insurance in iran insurance company
در این بررسی ابتدا به بررسی ماهیت توزیع خسارات پرداخته میشود و از روش نظریه مقادیر نهایی برای بدست آوردن برآورد ارزش در معرض خطر برای خسارات روزانه بیمه مسئولیت شرکت بیمه ایران استفاده میشود. سپس کارایی نظریه مقدار نهایی در برآورد ارزش در معرض خطر با کارایی سایر روشهای واریانس ، کواریانس و روش شبیه سازی تاریخی مورد مقایسه قرار میگیرد. نتایج این بررسی نشان میدهند که توزیع ،garch شناخته شده مدل...
15 صفحه اولمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 2 شماره 2
صفحات 449- 458
تاریخ انتشار 2012-01-25
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023