Vahideh Abdollahi; Ghasemali Dianati Tilaki; Jalil Farzadmehr; Hormoz Sohrabi
Volume 22, Issue 2 , August 2015, , Pages 330-343
Abstract
South Khorasan province with vast rangelands with an arid and semi-arid climate and specific species is one of the most suitable areas for camel breeding. Despite the importance of camel in the province, no research has been conducted on species selection by camel as well as its relation to chemical ...
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South Khorasan province with vast rangelands with an arid and semi-arid climate and specific species is one of the most suitable areas for camel breeding. Despite the importance of camel in the province, no research has been conducted on species selection by camel as well as its relation to chemical factors of plants. Therefore this research was aimed to investigate the relationship between palatability and nutritive value of range species in south of Birjand. For this purpose, the selection of range species by camel was investigated in three phenological stages of vegetative, flowering and seeding using chronometer. For each stage, the study was conducted during three days in the morning and evening. In this technique, each camel was followed for 30 minutes during the feeding. In addition, plant samples were collected for chemical analysis. Data analysis was performed using SPSS 15 software. Results indicated that there were no significant differences between preference value and chemical composition of species. The highest values of DMD, ME and CP as well as the lowest CF, ADF and NDF were recorded for Seidlitzia rosmarinus. According to the obtained results, the effects of chemical composition on species palatability varied from one species to another one. However, these effects depend on different factors including vegetation composition, available forage, species distribution, livestock taste and so forth.
Vahideh abdollahi; Farhad zolfaghari; Mitra Jabari; Mohamad rafie dehghan
Volume 22, Issue 4 , March 2015, , Pages 658-672
Abstract
This research was aimed to investigate the effects of crescent pond structure on soil and vegetation properties in the Saravan rangelands. For this purpose, two treatments including crescent pond and control treatment were determined. For each treatment, the density, canopy cover percentage, and litter ...
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This research was aimed to investigate the effects of crescent pond structure on soil and vegetation properties in the Saravan rangelands. For this purpose, two treatments including crescent pond and control treatment were determined. For each treatment, the density, canopy cover percentage, and litter were estimated by random-systematic sampling using five transects of 100 m and 50 plots. Two soil samples were taken along each transect from 0-30 cm depth and soil physico-chemical properties were measured. Data were analyzed statistically. According to the obtained results, significant differences were found for all vegetation parameters between the crescent structure and control treatment, indicating the positive effect of crescent structure on vegetation parameters. The results of soil properties indicated reduced soil salinity; however, the organic matter, potassium, and pH showed no difference between the two regions. According to the results, due to the climatic conditions of the study area, longer time is needed to achieve better results.