1. Resource utilization: Vegetable processing by-products are wastes generated in the production process, which are converted into feed through microbial fermentation, thus realizing resource reuse and reducing waste.

2. Environmental protection: Untreated vegetable processing by-products will cause pollution and harm to the environment, and converting them into feed through microbial fermentation can reduce waste discharge and environmental pollution.

3. Economic benefits: turning vegetable processing by-products into feed can provide new economic sources for farmers. At the same time, the transformed feed has certain nutritional value, which can reduce the breeding cost and improve the breeding efficiency.

4. Microbial fermentation: Through microbial fermentation technology, a feed with green advantages and safety advantages is created, which has a good development prospect in promoting animal growth, replacing antibiotics, recycling waste and reducing the competition between humans and animals for food.

To sum up, using microbial fermentation to convert vegetable processing by-products into feed can not only maximize the utilization of resources, but also help protect the environment and improve economic benefits, which has important practical significance.