How to raise tilapia culture techniques

Today, let's go into the world of fish, today we are going to learn that the fish has a very good name-tilapia. So today we are going to discuss two questions about tilapia. How on earth should the first tilapia be raised? Do you have any special culture techniques for flying fish? With these two questions, let's go into the world of tilapia.

How to raise tilapia

1. Miscellaneous eating habits: tilapia is a plant-based omnivorous fish. For tilapia in the pond, most of the contents in the digestive tract are organic detritus and other plant feed (such as aquatic plants, commercial feed, etc.), followed by phytoplankton, zooplankton and a small number of benthos.

2. Tolerance to hypoxia: tilapia has a strong tolerance to hypoxia, the asphyxiation point is 0.23 mg / L, and tilapia can still live and reproduce when the dissolved oxygen in water is 1.6 mg / L. When the dissolved oxygen in water is more than 3 mg / L, the growth is not affected.

3. Intolerant to low and high temperature: the survival temperature range of tilapia is 15 ℃ 35 min. Tilapia is dormant when the water temperature is below 15 ℃. The highest critical temperature of tilapia is about 40 ℃-41 ℃, the optimum growth temperature is 28 ℃-32 ℃, and the reproduction temperature of tilapia is above 20 ℃.

4. Strong reproduction: tilapia has the advantages of early sexual maturity, short spawning cycle, oral hatching, low reproductive conditions and natural reproduction in static water with large water area. Tilapia is a sexually mature female that weighs about 200 grams in 6 months.

Culture techniques of tilapia

1. Clear the pond and disinfect the fish before stocking. Generally in the first and middle of April, the pond is cleared with quicklime 75 kg ~ 100 kg per mu, water is added to 1 meter depth after 7 days, and then 300 kg ~ 400 kg of rotten manure is applied per mu, a small amount of duckweed or duckweed can be put in.

2. Every spring, when the water temperature rises and stabilizes above 15 ℃, winter seedlings begin to be stocked. In the pond, there are 1500 ~ 3000 fish species per mu, 40 ~ 70 silver carp and bighead carp species each to control the water quality, and 200 ~ 500 fish per mu when mixed with other fish.

3. Tilapia can be fed 2 ~ 3 days after entering the culture surface. Tilapia has a wide range of feeding habits. Under the condition of artificial feeding, it can be fed with all kinds of feed, such as wheat, corn, cake and so on. The protein content in the feed should start at 32%-35%, and the daily feed amount should be 3%-5% of the total weight of the fish.

Prevention and treatment of tilapia disease

The main results are as follows: 1. The prevention and treatment of fish disease is mainly based on prevention, such as strictly controlling stocking density, regulating culture water quality, feeding nutritious and fresh feed, sampling fish body surface and anatomical examination and so on. Once the fish disease is found, fishery professionals should be invited to diagnose and treat the disease under the guidance of professionals.

2. After half a month, sprinkle 1ml 2g / m3 bleach (28% available chlorine) once; 4, keep the water quality fat, alive, tender, cool and slightly alkaline; dead fish should be fished out in time, disinfected and buried in the soil; utensils used in diseased fish ponds should be washed and disinfected, and sick fish pond water should not be discharged arbitrarily without disinfection.

How big can tilapia grow?

1. Tilapia is not a native species, but an alien species. In recent years, tilapia has only appeared in our recipes and rivers. Tilapia that are too big are rarely seen, especially when we are fishing, they are about the size of a slap.

2. Of course, there are still a lot of tilapia in some southern waters. Tilapia has a strong ability to reproduce and adapt, and some relatively harsh environments can also survive. In addition, it is difficult to find natural enemies in southern waters, so tilapia survive very well in the south.

3. In the south, I can occasionally catch relatively large tilapia. I have ever seen the largest tilapia, which can be regarded as the king of tilapia, but tilapia with a size of more than ten kilograms is also rare.

How to raise tilapia, there are all in the article, do you have this function from get to tilapia in the reading column? Do you understand the culture technology of tilapia? I hope those of you who read the program today can gain something.