Fish in the American supermarket 10 dollars 36 catties, why is Lao Mei's fish so cheap? What's the mystery inside? I had to take it after reading it. European and American countries started earlier than us.
Coupled with the shortage of human resources, the development of mechanization has to be carried out, and the countries with more developed industrial aquaculture systems in foreign countries include North AmericaCanadaUnited States; EuropeanFranceGermanyIsraeland Japan in Asia.
The factory aquaculture system in the United States has been developing rapidly since the sixties and seventies of the last century, and the Americans are very strange in raising fish, not outside, but indoors.
Build a circular fish pond, fill it with water, and start raising fish. The three most important aspects of fish farming are:Water cycleOfferingswithFeeding.
A large amount of excrement produced by fish every day, if not cleaned up in time, it will pollute the fish pond, generally through the power system, the water is purified, and the indoor fish pond water is pumped.
The pump pumps the water to a certain height, and then flows down the pipe from high to the fish pond, which also has an outlet, and so on to ensure that the fish pond is clean.
The large and small tanks in the fish farm are a kind of storage tanks with high carrying capacity, which are filled with oxygen, and the oxygen is transported through high-pressure devices to ensure that the oxygen in the water is sufficient.
So how to feed indoor fish ponds? How did the United States solve the problem of feeding too much for fear of dying, and feeding less for fear of malnutrition?
How do Americans raise fish? Fully automatic mechanization, is the fish raised in this way delicious? The most troublesome thing about raising fish is "feeding", uneven feeding will dry land and waterlogging.
When the fish grow up, they need to be fed a lot of feed, and the American fish farm cleverly solves this problem, and the fish farm has a special control and monitoring system to monitor the situation in the fish pond anytime and anywhere.
According to the growth of the fish, the system will feed the fish at a fixed time every day through mechanized operation to ensure that the fish will neither starve to death nor be supported to death.
Thanks to mechanization, the whole feeding process basically does not require manpower, and when the fish grow to a certain size, there will be a professional transport vehicle.
They are transported to the market or to the processing plant, where the fish are neatly arranged on the cutting board and then removed by the machine for their heads and livers.
On the way, the internal organs will be crushed along another channel and processed into feed to continue to feed the fish, and the cleaned fish will be frozen and sent to the market.
It is precisely because of the assembly line management that the fish in the United States is so cheap, but it is impossible to say whether this fish is good or not, after all, Americans do not know how to make any fish.
The fish raised in fish farms in the United States are basically tilapia, which has fewer bones and more meat, and can be eaten simply by frying, so why doesn't my country like to eat tilapia?
Can you believe it? Tilapia, which is loved by Americans, is not welcomed in our country, and the Chinese are so good at "eating", why only let tilapia go?
Tilapia is a freshwater fish, a common fish from the Nile River Basin, which was introduced from Africa in China in the 70s of the last century.
At first, he returned his mother's filial piety to the "fish", but later because of a flood, the tilapia that was originally bred in captivity flowed into the wild, and with its super adaptability and reproductive ability, it immediately flooded in the wild.
In less than ten years, the whole natural waters of the south, you can see tilapia everywhere, because of the unique geographical environment of the south, resulting in a lot of rain, natural waters, rich animals and plants, quagmire and swamps.
The huge group of tilapia has become the "scavenger" here, and what is even more excessive is that tilapia will eat other fish eggs, but their own fish eggs are protected by "mouth hatching".
In other words, the tilapia living in the wild does not taste good, it has a strong earthy smell, and the artificially farmed ones will be a little better, but the tilapia that has really been artificially farmed is still very expensive, so gradually no one eats tilapia.
Due to geographical factors, this fish cannot be transported to the north, so it can only continue to flood in the south. So have you ever eaten tilapia?
Scientific rambling