The invention discloses a method for improving production performance of
grazing Tan sheep by utilizing ground-source feed, and relates to the technical field of improvement of productivity of the
grazing Tan sheep and reasonable utilization of natural
grassland, and the method comprises the following steps: selecting
grassland with
community vegetation coverage of more than or equal to 60%,
plant overground net
primary productivity of more than or equal to 100g / m < 2 >, and taking stipa brachycarpa or desertleweed as dominant species as
grazing grassland; setting a continuous grazing group, a continuous grazing and supplementary feeding corn granule group and a continuous grazing and supplementary feeding
caragana microphylla granule group, and respectively measuring
body weight gain dynamic data, grazing behavior data and
body size index data of the Tan sheep in each treatment group; and respectively monitoring the grassland
plant overground net
primary productivity and species richness of each treatment group by adopting a
quadrat determination method, and determining whether the
plant overground net
primary productivity of each treatment group is lower than a desert
grassland degradation warning threshold value or not. Ground-source feed utilization, grazing parameter optimization and grass and
livestock cooperative monitoring are combined, and grassland
ecological safety can be ensured while the production performance of the grazing Tan sheep can be improved.