Rabbits can be raised in farmhouses in plains and mountainous areas of China, which can make full use of local leaf resources. A large number of trees are planted with Robinia pseudoacacia, willow and poplar. Due to different harvest seasons, their nutritional values are also quite different (Table 17).

Table 17 Changes in Nutritional Components of Several Leaves in Different Seasons (%)

It can be seen from the table 19 that the content of protein is the highest and the fiber content is the lowest in summer. With the extension of harvest period, fat and fiber increased, and protein decreased. Therefore, when feeding rabbits with leaves as the main roughage, the harvest season should be distinguished to determine the appropriate addition ratio.