How profitable is loach farming? Profit analysis of loach farming

The main costs of loach farming are feed and seed stock. Now taking one mu of pond farming as an example: stock 1000 jin per mu, with 200 loach fry per jin. After 5 months of feeding, they can grow into marketable loach at 20 to 30 per jin. Then 20 per jin means a weight increase of 15 times, and 30 per jin means a weight increase of 6.6 times. Calculating at an 85% survival rate, 5610 jin to 8500 jin of marketable loach can be produced.
Total income
Calculated at the minimum of 5610 jin of marketable loach: 5610 jin × 12 yuan/jin (market selling price) = 67320 yuan.
Annual pond rent
400 yuan/mu.
Feed cost
5 months × 1000 yuan = 5000 yuan (raised for 5 months, feeding 1000 yuan per month).
Seed purchase cost
1000 jin × 26 yuan/jin = 26000 yuan.
Labor wages (calculated for 5 months)
600 yuan × 5 = 3000 yuan (in practice one person can manage ten mu of ponds).
Per-mu profit
67320 yuan - (400 yuan + 5000 yuan + 26000 yuan + 3000 yuan) = 32920 (yuan).
Considering that the quality of feed contains great uncertainty (for example, the labeled protein content is high, but the actual protein content is very low, that is, high-priced and inferior feed), the feed cost for loach is slightly higher than the theoretical calculation, but if natural feed is used, such as: chicken, cattle, pig and other manure (must be fermented), the cost will be much lower.