放牧强度对肉牛行为的影响

为研究家畜行为对不同放牧强度和月份的响应规律,本文通过控制试验和随机区组排列方法,设置3个放牧强度(轻度(G1:0.23 cow·Au·ha-1)、中度(G3:0.46 cow·Au·ha-1)、重度(G5:0.92 cow·Au·ha-1))和3个重复,在2018年7—9月,每个小区选取2头肉牛佩戴GPS电子项圈并人...

The Effect of Grazing Intensity on Beef Cattle's Behavior

To investigate the response of livestock behavior to different grazing intensities and at different months. Three grazing intensities experiments were carried out, including mild (G1:0.23 cow·Au·ha^-1), moderate (G3:0.46 cow·Au·ha^-1), and heavy (G5:0.92 cow·Au·ha^-1) grazing. Three replicates were given, and arranged in random blocks. The experiments period was from July to September in 2018. We selected 2 cows wearing GPS electronic collars and manually observed and recorded the occurrence of each behavior time in each plot, and analyzed the temporal and spatial characteristics of grazing livestock behavior. The results showed that in terms of time, livestock feeding time > resting time > walking time, and the proportion of feeding time was 53.19% (G1), 62.06% (G3) and 66.60% (G5), respectively. Spatially, with the increasing of grazing intensity, the greater the distance of livestock, which were 3.53 km (G1), 4.05 km (G3) and 4.89 km (G5), The range of livestock activities increased significantly with the increase of grazing intensity. Under heavy grazing increased by 69.62%. The range of livestock activity areas was the largest in August was 67.25%. Considering the two factors that affect livestock behavior, grazing intensity and month, grazing intensity occupies a dominant position. Livestock behavior monitoring is conducive to the rational use of grassland resources and intelligent management of livestock.