Brazilian cattle-ranching, which occupies 209m hectares, is staggeringly unproductive, with an average stocking rate of less than a head of cattle per hectare.
巴西养牛业占据了2.09亿公顷的土地，却相当低效，平均每公顷上放养还不到一头。
The selectivity index of different plant species changes with grazing The selectivity index of different plant species changes with grazing seasons and stocking rate.
山羊对各种植物的选择性指数随放牧季节和放牧率的不同而发生变化。
Growth and feed utilization rate of Siganus canaliculatus under different stocking densities and with various feeding levels were introduced.
探索了不同放养密度和投饲量水平下沟篮子鱼的生长情况和饲料利用率。
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