Generally, 4-5 herrings with body weight 10kg are suitable. The specific number of herring to be stocked in an acre of land depends on the conditions of the pond and the level of feeding management, and farmers can increase or decrease it scientifically.

At present, there are no strict regulations on the reasonable stocking ratio of fish. Judging from most breeding modes with good economic benefits, taking 400 kilograms of adult fish per mu as an example, the stocking ratio is: 450 silver carp, 35.5 kilograms; 40 bighead carp, 4 kg; Grass carp 60-80 kg, 15-20 kg; 20 carp, 1 kg; 50 bream, 2.5 kg; 100 crucian carp, 3 kg; 6-8 herrings, 4 kg.

Although the proportion of high-quality fish in this stocking collocation is not high, the cost of fish species is low, the investment risk is small, the individuals who cultivate high-quality fish are large, the weight gain is high and the benefits are good.

This model can also be changed to focus on high-quality fish, with the number of grass carp increased to more than 100, the number of bream increased to more than 150, and the number of silver carp decreased to 350-400. This model is characterized by high investment and high efficiency.