Volume 31 (2024)
Volume 30 (2023)
Volume 29 (2022)
Volume 28 (2021)
Volume 27 (2020)
Volume 9 (2019)
Volume 8 (2019)
Volume 26 (2019)
Volume 12 (2019)
Volume 10 (2019)
Volume 25 (2018)
Volume 24 (2017)
Volume 23 (2016)
Volume 22 (2015)
Volume 21 (2014)
Volume 20 (2013)
Volume 19 (2013)
Volume 18 (2011)
Volume 17 (2010)
Volume 16 (2009)
Volume 15 (2008)
Volume 14 (2007)
Volume 13 (2006)
Volume 7 (2000)
Volume 6 (1999)
Volume 11 ()
Study of the palatable range species according to preference index method in Zaminsang region, Hormozgan province

Abdolhamid Hajebi; Mohammad Amin Soltanipoor; Mohammad Fayaz; Ehsan Zandiesfahan

Volume 29, Issue 4 , January 2023, , Pages 485-497

Abstract
  One of the important factors in determining the grazing capacity of rangelands is determining the preferred value of rangeland plants according to the type of livestock using the rangeland and its changes during the grazing season. In this study, the preference value of rangeland species in Zaminsang ...  Read More

Investigation the preference value of the some species In Sahand rangelands of East Azarbaijan province

Mohammad Reza Najibzadeh; Mina Bayat; Mohammad Hasan Pezeshki; Mohammad Fayyaz

Volume 28, Issue 2 , June 2021, , Pages 208-221

Abstract
  In this research, the preference value of rangeland species in Sahand rangelands of East Azarbayjan province was studied for four years (2007-2010). The preference index method was used for this purpose. After determining the amount of production and consumption of each species selected in the grazing ...  Read More

Studying the preference value of range species and its relationship with rainfall

Mohammad Zadbar; Somayyeh Naseri; Mohammad Fayaz

Volume 23, Issue 4 , March 2017, , Pages 744-759

Abstract
  Environmental factors including rainfall are the factors affecting palatability of plants and consequently the preference value for animals. In this study, the preference value of plants was determined in Sarakhs (winter rangeland at North-East of Khorassan province) by timing method during 2007 to 2010 ...  Read More

Survey on Changes in Preference value of pasture species over a grazing period in BID KHEYRI rangelands

Gholamhosein Rahmani; Reza Bagheri; Ahmad Pourmirzaee

Volume 23, Issue 1 , June 2016, , Pages 29-36

Abstract
  Preference value is defined as selection of available species by livestock. In this study, the preference value of 12 perennial species and annual grasses was determined for five months in semi-steppe rangelands of Kerman. The average annual rainfall of the study area is 270 mm. The obtained data were ...  Read More

Study of preference value of Til Abad range plants in Golestan province

Gholamreza Naseri; Ghasemali Abrsaji; Mohammad Fayaz

Volume 22, Issue 2 , August 2015, , Pages 373-381

Abstract
  This research was aimed to study the preference value of range species in Til Abad rangelands. To determine the preference value, timing method as well as measuring the production and consumption of species was used. According to the results of analysis of variance, significant differences were found ...  Read More

Determination of preference value of range species for sheep and goat at Cheshme-Anjir, Fars province

Mohammad Fayaz; Seyed Hamid Habibian; Hasan Yeganeh; Avar Sanaie

Volume 22, Issue 1 , June 2015, , Pages 1-11

Abstract
  In this research, the preference value of range species for sheep and goat was studied in the Cheshme-Anjir rangelands of Fars province during four years (2007-2010). Direct observation (timing) method was used during the grazing months (June, July, August and September). In each month, around one to ...  Read More

An investigation of preference value of important range plants in Saraliabad Gorgan Rangelands in different phenological stages

Seyed ali Hoseini; Mohammad Fayaz

Volume 21, Issue 3 , December 2014, , Pages 424-434

Abstract
  Determining the preference value of range plant species and its variation during the grazing season is one of the factors affecting the grazing capacity of rangeland. This study was conducted in semi steppe rangelands of Saraliabad Gorgan, located 45 km far from south Gorgan. Saraliabad rangelands have ...  Read More

Preference value of plant species grazed by cow in Tezkharab Rangeland of West Azerbaijan Province

Mohammad Fayaz; Hasan Yeganeh; Mirtaher Ghaemi; Hosein Piri Sahragard; Mehdi Moameri

Volume 21, Issue 3 , December 2014, , Pages 482-493

Abstract
  Knowledge of preference value of rangeland species during the grazing period is essential for range management and planning. The purpose of this study was to investigate the preference value of plant species grazed by crossbreed cows during the grazing period in Tezkharab Rangeland of West Azerbaijan ...  Read More

Investigation on preference value of range species and grazing behavior in Qorveh Rangelands of Kurdistan

Jamal Hasani; Mohammad Fayaz

Volume 21, Issue 2 , August 2014, , Pages 357-367

Abstract
  This study was performed in the Qorveh rangeland of Kurdistan for five years (2006-2010) to determine the preference value of range species and grazing behavior. The preference value of range species was measured with two methods (time study and preference index). According to the obtained results, significant ...  Read More

Preference value comparison in range species Anjedan-Arak

Mostafah Zare; Mohammad Fayyaz; Gholamreza Goudarzi; Ali Farmahini farahani

Volume 19, Issue 1 , June 2012, , Pages 178-190

Abstract
  The preference value is defined as selection of available species by livestock in the free grazing. This study was conducted in semi steppe rangelands of Anjedan located 35 Km far from east Arak. These rangelands are of important centers for keeping livestock which is under heavy grazing with a poor ...  Read More

An ecological study on some characteristics of Astragalus brachyodontus in rangelands of Ardabil province, Iran

Jaber Sharifi; Amrali Shahmoradi; Ali Akbar Emani

Volume 17, Issue 2 , September 2010, , Pages 221-233

Abstract
  In order to recognize, find and use applicable information in range management and forage production, surveying of ecological characteristics of Astragalus brachyodontus were carried out. The method of studying was as following. At the first step, we used a map of vegetation cover and surveyed range ...  Read More

Effects of animal age and different months of grazing season on grazing behaviour and diet selection of Zandi ewes grazing in steppe rangelands (case study: Yekke bagh, Qom)

Abbas Ahmadi; Maryam Peiravi

Volume 16, Issue 4 , January 2010, , Pages 536-550

Abstract
  As animals graze selectively, prediction of their nutrient intake and intensity of the impact on rangelands vegetation needs an understanding of the animals’ foraging decisions. Therefore, a study area was selected in steppe rangelands in Qom province and one enclosure (1ha. area) was contracted ...  Read More

Study of preference value of range plants in key ranges of Anjedan’s rangelands of Markazi province

Hamid reza Mirdavudi; Abassali Sanadgol

Volume 16, Issue 2 , December 2009, , Pages 190-199

Abstract
  In this research, first of all the key and important species as well as associated species of rangelands were recognized, then morphological and seasonal changes and preference value were determined on the selected species such as Artemisia aucheri, Kochia prostrata, Bromus tomentellus, Asperula glomerata ...  Read More

Autecology of Ferula ovina Boiss. in Tehran Province

Farhad Azhir; Amrali Shahmoradi

Volume 14, Issue 3 , January 2007, , Pages 359-367

Abstract
  Accessibility to a major portion of information about vegetation cover function of rangeland ecosystem is provided by the way of autecological study of range plant species. Autecological study of a range plant named Ferula ovina was accomplished in Tehran province. Topographic, edaphic, and climatic ...  Read More