Mohammad Abolghasemi; Hannaneh Mohammadi Kangarani; Hosein Azarnivand; Mohammadali Emami Meybodi
Volume 28, Issue 1 , April 2021, , Pages 118-128
Abstract
Rangelands are composed of different plant species with different vegetative characteristics that have a certain grazing value. Hence, the grazing livestock also shows a special grazing behavior according to it. Without knowing these behaviors, planning and managing rangelands and livestock ...
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Rangelands are composed of different plant species with different vegetative characteristics that have a certain grazing value. Hence, the grazing livestock also shows a special grazing behavior according to it. Without knowing these behaviors, planning and managing rangelands and livestock is not possible. This research was carried out on camel herds in the rangelands of the Tabas desert from 2015 to 2017. Parameters such as grazing time, rest time, livestock movement time, distance traveled, and livestock movement speed were examined by GPS. The results showed that in spring, summer, fall, and winter, grazing time, livestock movement time, distance traveled, livestock movement speed at (p < /em><0.01), and rest time at (p < /em><0.05) were significantly different. The highest grazing time (342 minutes), rest time (119 minutes), and distance traveled (21.66 km) by camels in the studied rangelands were in summer and the lowest in winter. The highest speed (2.12 km/h) and travel time (359 minutes) were in spring and the lowest in winter. Therefore, knowing the mentioned parameters will help the rangeland management in determining the appropriate time for the camel to move in the rangeland and will increase the livestock performance.
Ghader Karimi; Hasan Yeghaneh; Mehdi Moameri; Mahmoud Goudarzi
Volume 21, Issue 2 , August 2014, , Pages 295-306
Abstract
In order to understanding of the grazing cycle and grazing behavior at different slopes of Kordan rangelands, the grazing behavior of Fashandy breed sheep was investigated for four years. Parameters examined in this study included daily distance traveled by livestock, livestock path in the ...
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In order to understanding of the grazing cycle and grazing behavior at different slopes of Kordan rangelands, the grazing behavior of Fashandy breed sheep was investigated for four years. Parameters examined in this study included daily distance traveled by livestock, livestock path in the rangeland considering the slope, livestock speed (mean, maximum and minimum) and the time spent for livestock rest and movement per day. To determine the parameters, Garmin GPS was used on the back of a 4-year-old ewe using a special belt. After livestock exit from the fold, GPS was active and at the end of the day all recorded data were extracted by Mod-track in Ilwis software. The livestock path was determined by shepherd. Results showed that during the first month of grazing season and when vegetation was more, the distance traveled by livestock was less than that of other months. In addition, the maximum and minimum distances traveled by livestock were obtained at slopes of 30-60% and less than 15%, respectively. According to the results of grazing behavior during the months of grazing season, maximum and minimum livestock speed were recorded in July and in May and June, respectively. Therefore, the grazing program in similar areas could be managed at different slopes using the obtained results in this study.