Vinasse granular boar composite feed

The invention belongs to the field of feed processing technologies and relates to a vinasse granular boar composite feed. The feed is prepared from the following components in percentage by weight: 30-40% of vinasse, 20-30% of coarse cereal powder, 10-15% of soybean or peanut meal, 5-10% of sweet potato straw powder, 5-10% of okra straw powder, 3-5% of fishbone meal, 10-20% of vegetable sauce and 0.5% of salt powder. By taking oyster liquid as a diluent, the boar composite feed is rich in nutrition, good in semen promoting capability, simple in processing and preparation processes, available in devices, low in production cost, high in waste utilization rate and environmentally friendly.