What animal is described in the poem Niuzhuangzhai in Guang Zhi?

The ancient poem "Niuzhuangzhai in Guang Zhi" describes cattle, showing the beautiful scene of cattle running on the grassland and climbing over the mountain peaks, and depicting cattle crossing mountains and rivers as a beautiful scenic line, which makes people lament the strength and vitality of cattle. The bull in the poem is galloping, brave and heroic, symbolizing the sanctity and victory of the people of China. Therefore, it is generally believed that Niu Guangfu is a poem praising cows and a wonderful flower in China's ancient poetry.