The grouper farming cycle lasts as long as 1 to 3 years, with high cost input

SummaryFarming cycle: There are many species of grouper, and different varieties have different farming cycles. The farming cycle of green grouper and oil grouper is about 1 year, while the farming cycle of leopard coral grouper and humpback grouper is as long as 2-3 years. Cost analysis: The cost of farming grouper includes fry, feed, labor, water and electricity, management, disease prevention and other expenses. The farming cost of one mu of grouper is about 400,000, which makes it a relatively high-input project. Before farming, it is essential to do a good job of cost budgeting and risk analysis.

I. The farming cycle of grouper

Because there are many species of grouper, the farming cycle of each variety is different. Green grouper and oil grouper grow relatively fast, and generally after 1 year of farming they can reach a weight of about 2 jin, fully meeting the standard for market sale, but varieties such as leopard coral grouper and humpback grouper grow very slowly and need a farming period of 2-3 years before they can be sold normally on the market.

II. The cost of grouper

The cost of grouper involves fry, feed, labor, water and electricity, disease prevention, liquid oxygen and other aspects. The following calculates the required cost for one mu and one year:

1. Fry: The price of grouper fry is 6 yuan per fish, and each square meter of pond can hold about 35 fry, so the cost of fry for one mu is: 6*667*35=140070 yuan.

2. Feed: The price of feed is 12 yuan per kilogram, and each square meter of grouper needs about 1 kilogram of feed per month, so the cost of feed is: 12*35*667=280140 yuan.

3. Labor and water and electricity: One year requires about 6000 yuan for labor and water and electricity.

4. Disinfection and management: One year requires about 3000 yuan.

5. Disease prevention and liquid oxygen: During the farming process, grouper need disease prevention, and at the same time the pond needs to maintain a suitable oxygen concentration, which must rely on machines to supply oxygen, so the cost is relatively high, requiring about 5000 yuan per year.

In summary, the cost required for about one mu per year is 140070+280140+6000+3000+5000=434210, and the initial investment needs about 435000, which makes it a high-input, high-risk farming project, so when investing, cost budgeting and risk analysis must be done well.

III. Grouper farming techniques

1. Site selection

Grouper are generally farmed mainly by two methods: cage farming and pond farming. During the farming process, temperature must be well controlled. When carrying out pond farming, try to ensure that the environment in the pond is similar to the marine environment. The bottom of the pond should be covered with semi-sandy and sandy material, and at the same time the pond water depth should reach more than 1 m.

2. Fertilizing water and disinfection

Before farming, the pond needs to be disinfected, then the water in the pond should be drained and exposed to the sun for more than half a month, then water should be added and filtered, and only after about 2 months can fry be stocked. When adding and filtering water, organic fertilizer, urea, ammonium phosphate and the like can be used to carry out the work of fertilizing the water, requiring about 200 kg per mu.

3. Fry requirements

When selecting fry, it is best to choose fry that are free of disease, strong in vitality, and darker in color, with a size of about 3 cm. Such fry can adapt well to the growing environment and grow rapidly.

4. Water temperature requirements

Grouper are very sensitive to temperature. In winter, the water temperature needs to be especially well controlled. The suitable growing temperature is about 25-30°C.