Grouper culture cycle and cost, 1 to 3 years, high input cycle and long cycle

Culture cycle: there are many species of grouper, and the culture cycle of different species is different, the culture cycle of green spot and oil spot is about one year, while that of Dongxing spot and Su eyebrow spot is as long as 2-3 years. Cost analysis: the cost of breeding grouper includes seedling, feed labor fee, water and electricity fee, management fee, epidemic prevention fee, and so on. The culture cost of grouper per mu is about 400000, which belongs to a high investment project. Cost budget and risk analysis must be done before breeding.

I. Culture cycle of grouper

Due to the wide variety of grouper species, the culture cycle of each species is different. The growth rate of green spot and oil spot is relatively fast, generally, the body weight of about 2 jin can be reached in one year, which can fully meet the standard of market sales, but the growth rate of varieties such as Dongxing spot and Su Mei spot is very slow, so it takes 2-3 years of breeding period. to sell normally on the market.

Second, the cost of grouper

The cost of grouper involves breeding, feed, labor, water and electricity, epidemic prevention, liquid oxygen, and so on. The following costs are calculated for one mu or one year:

1. Fry: the fry price of grouper is 6 yuan per piece, and if 35 fry can be put in every square meter pond, the fry cost per mu is 6 yuan, 667 yuan, 35 yuan, 140070 yuan.

2, feed: the feed price is 12 yuan / kg, per square meter grouper needs about 1 kilogram of feed per month, then the feed cost is: 1235 million 667kg 280140 yuan.

3. Labor and water and electricity charges: the annual labor and water and electricity costs are about 6000 yuan.

4. Disinfection and management fee: about 3000 yuan a year.

5. epidemic prevention and liquid oxygen fee: grouper needs to prevent epidemic diseases in the process of culture. at the same time, it needs to maintain a suitable oxygen concentration in the pond, so it must rely on machines to supply oxygen, so the cost is relatively high, about 5000 yuan a year.

To sum up, the cost of about one mu per year is 14007028014060000005000434210, and the initial investment is about 435000, which is a high-input and high-risk aquaculture project, so it is necessary to do a good job in cost budget and risk analysis.

III. Culture techniques of grouper

1. Site selection

Grouper generally use cage culture and pond culture as the main breeding methods. In the process of culture, the temperature must be well controlled, and when pond culture is carried out, the environment in the pond is similar to the marine environment as far as possible. The bottom of the pond is paved with semi-sandy and sandy materials, and the water depth of the pond is more than 1 meter.

2. Fertilizer, water and disinfection

The pond needs to be disinfected before breeding, and then the water in the pond will be drained and exposed for more than half a month, and then filtered. It will take about 2 months for fish fry to be released. In the water filtration, you can use organic fertilizer, urea, ammonium phosphate and so on to carry out fertilizer and water work, about 200 kilograms per mu.

3. Fish fry requirements

In the selection of fish fry, it is best to choose disease-free, dynamic, black fry, the specification is about 3 cm, such fry can well adapt to the growth environment and can grow rapidly.

4. Water temperature requirements

Grouper is very sensitive to temperature, so it is necessary to control the water temperature in winter. The suitable temperature for growth is about 25-30 ℃.