荒漠草原家庭牧场不同放牧管理模式下草畜能量平衡模拟研究

本研究以内蒙古乌兰察布市四子王旗家庭牧场调研数据为基础,利用ACIAR草畜平衡模型对荒漠草原家庭牧场在全年放牧和季节牧场及补饲措施的家畜需求与草地供给之间的能量平衡关系进行模拟研究,目的是了解家庭牧场的草畜平衡状态,为草地畜牧业管理提供理论依据。结果表明,划分季节牧场利用可增加家畜在冬季的实际能量摄入,减少在夏季的能量摄入;补饲可以缓解在家畜关键生长期对于能量的需求,并在不额外增加补饲量的条件下,划分季节牧场的家畜也表现出冬季实际能量摄入增加,夏季能量摄入减少。

Simulating Research on Energy Balance between Forage Supply and Animal Demand under Different Grazing Patterns on Household Farms on Desert Steppe

The research is to simulate the balance between forage supply and animal demand under all--year grazing and seasonal grazing combine with supplement circumstances in desert steppe based on farm survey data of household farms in Siziwang Banner, Ulanchabu City, Inner Mongolia. It is aiming at understanding the balance between forage supply and animal need and providing theoretical support for grassland management. The resultsshow that seasonal grazing could increase the energy intake in winter and reduce the energy intake in summer; u sing supplement could reduce the animal＇s energy deficit in significant growing periods;＇ and the actual energy in take of animals under seasonal grazing increases in winter and decreases in winter.