Abdolhamid Hajebi; Mohammad amin Soltanipoor; mohammad fayaz
Abstract
In order to investigate the preference value of plants, this study was conducted in Sirik rangeland in Hormozgan province. To determine the preferred value in this region, two methods of timing and production and consumption of plant species were used. The results of analysis of variance of the preferred ...
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In order to investigate the preference value of plants, this study was conducted in Sirik rangeland in Hormozgan province. To determine the preferred value in this region, two methods of timing and production and consumption of plant species were used. The results of analysis of variance of the preferred value in both timing methods (using a video camera) and the operating percentage yielded the same results. Because in both methods, there was no statistically significant difference at the level of 5% between the years and months of the study and only a significant difference between species. In the chronological method, Sphaerocoma aucheri with statistically assigned the highest mean (29.8%) along with annuals with an average (28.9%) were placed in a class statistically, followed by Moltkiopsis ciliata and Cenchrus pennisetoformis 9.3 and 7.8, respectively. In the method of exploitation percentage, the highest exploitation percentage was Cenchrus pennisetoformis with 52.9%, although with Heliotropium bacciferum with 49.6%, Moltkiopsis ciliata with 45.8%, Sphaerocoma aucheri with 44.6% and Cyprus conglomeratus with 44.5% were in a group. In the Sirik region, Sphaerocoma aucheri was one of the high density and high consumption species and Cenchrus pennisetoformis was the low density and high consumption species. Sphaerocoma aucheri was in the first place in terms of preference value, but it should be noted that livestock tends to graze more than annuals at the beginning of the growing season and at the end of the growing season with drying or seeding of grasses, annuals are received less attention.
Mohammad Fayaz; Hossein Piry Sahragard; Hassan Yeganeh; Anvar Soor; Mirtaher Ghaemi
Abstract
Having a comprehensive and correct understanding of grazing behaviour of livestock helps to maximize livestock products. Moreover, a good understanding of livestock behavior allows us to predict the effects of livestock on rangeland and finally we can do livestock grazing management the best possible. ...
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Having a comprehensive and correct understanding of grazing behaviour of livestock helps to maximize livestock products. Moreover, a good understanding of livestock behavior allows us to predict the effects of livestock on rangeland and finally we can do livestock grazing management the best possible. Recognition of grazing behavior of animals can provide solutions enables the optimal use of rangeland forage and can also help in preventing the reduction of animal products and will prevent of Ranchers income loss. For this purpose cow grazing behaviour investigation was performed in Tezkharab rangelands for 4 years. Long distance path following day in the pasture, and livestock speed (maximum and minimum average) time for rest and time for the motion and applied grazing system were studied. To study for grazing cycle was used from the geographic position locator (Garmin GPS). Use the belt to the back of a cow's day package. At the end of the day, data was extracted in Elvis using in track mode. The results showed all traits in a significant level 1% Effect was significant difference in years and months (May, June, July, August, September and October) except average speed traits. This trait was significant at the 5% level. This study showed that environmental factors such as seasonal variations and therefore its temperature changes is one of the most important factors that influencing grazing behavior of livestock.
M. Fayaz
Abstract
More than half of the area of the country are rangelands. Implementing the principles of proper rangeland management and optimal use of rangeland requires proper stock grazing management. Considering the quality and quantity of forage plants, palatability and preference value of species and rates of ...
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More than half of the area of the country are rangelands. Implementing the principles of proper rangeland management and optimal use of rangeland requires proper stock grazing management. Considering the quality and quantity of forage plants, palatability and preference value of species and rates of species utilization are information needed for proper management of livestock grazing in rangelands. In this study, preference value of three plant species of steppic rangelands including of Iran includingArtemisia sieberi, Stipa arabica and Scariola orientaliswere considere. The studied sites are located in Kerman, Yazd and Isfahan provinces. At first, the vegetation type of each site was determined and and its floristic list was prepared over spring and summer. The selection criteria were used in order to determine the value of preferred species. Random sampling with the plot of one square meter was done in different months and factorial experiment in randomized complete block design was usedto compare preference values and their comparison in different times and places. The results showed that preference value between plant species and studied sites at five percent are significant but there was no significant difference among different months.The interaction of species and stage of grazing was not significant in this research. Moreover, the preference value of Stipa arabica andArtemisia sieberi for sheep grazing were different over different months. The results also reveald that Artemisia sieberi in Nadooshan site has the highest preference value.
