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Genetically modified salmon is here, and you can still eat it safely
Since the birth of genetically modified food, we are not unfamiliar with it, but most consumers still choose non genetically modified food because of safety or price. However, with the progress of technology, people's views on genetically modified food are graally changing. They don't talk about "turning" as they did a few years ago, and the genetically modified food on the market tends to be diversified, from single genetically modified crop food to genetically modified animal foodin 2015, the United States approved genetically modified salmon for human consumption. After two years, the first sale of genetically modified salmon was finally completed in Canada. It is reported that this kind of genetically modified salmon can grow rapidly even in cold conditions. It only takes 18 months to grow up, and it is larger than similar non genetically modified salmon, so it can grow faster More to meet people's consumption needs
the general management process of genetically modified crops in China
at present, China's agricultural proction is facing the problem of increasing abuse of chemical pesticides and fertilizers. Genetically modified cotton with less pesticide demand, genetically modified corn with less fertilizer demand, and even genetically modified rice with less irrigation demand... Scientists hope that by promoting these genetically modified crops, they can provide a dose of good medicine for China's food safety, environmental protection, and more effective use of resources
Salmon is a kind of deep-sea fish, born in freshwater environment, and then moved to the sea to grow, and will return to freshwater breeding, belonging to the cruise fish
Salmon, also known as salmon or salmon, is one of the most commonly used fish ingredients in Western food. In the consumer markets of different countries, salmon covers different types. Salmon in Norway is mainly Atlantic salmon, salmon in Finland is mainly cultured large-scale red rainbow trout, and salmon in the United States is mainly Alaska salmonsalmon is rich in nutrients and unsaturated fatty acids. The protein in salmon meat contains 18 kinds of amino acids (including 8 kinds of essential amino acids for human body), and the protein content is significantly higher than that of other fish. In addition, salmon is also rich in a variety of minerals (such as calcium, phosphorus, magnesium, etc.)
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when eating salmon, it should be noted that there are more parasites in wild salmon, and anisakia is the most common, which is easy to cause abdominal pain and diarrhea, but marine parasites cannot survive in human body for a long time. In contrast, farming salmon may have fewer parasites
it is worth noting that rainbow trout cultured in freshwater can sometimes be used as sashimi, but its risk is far greater than that of salmon. This is because parasites in freshwater fish can survive in the human body, and the most common one is the liver fluke
therefore, fresh water cultured rainbow trout can not be eaten raw. Anisakis can be killed by freezing
It is proced in Heilongjiang, Wusuli River and the upper reaches of Songhua River. There is artificial breeding in Huaihua area of Beijing
salmon is one of the most commonly used fish ingredients in Western food. Salmon proced in China is called salmon in Chinese. From September to October every year, they enter rivers in groups to lay eggs, so September to October is the best time to catch salmon
habits:
salmon is a kind of anadromous fish. The main species of BC are Chinook, sockeye, pink and chum. After living in rivers for 1-5 years, they live in the sea for 2-4 years. The spawning period is from August to January of the next year. During the migration, they jump over small waterfalls and dams. After a long journey, they can reach the spawning ground without feeding
every year, from July to October, thousands of salmon will breed in the Adams section of the upper Fraser River in Canada. They're all coming upstream from the Pacific Ocean. The process of marching is going up against the current, and every stage of marching has a ladder like "heightening". To get to a "ladder" is like going up the steps, we need to step up. And fish can only rely on the body to keep jumping, it is possible to reach the next level It's like a carp leaping over a dragon's gate.) However, e to the special environment and the special spawning habits of salmon, it is necessary to reach the upper reaches of this long-distance high-altitude ladder to spawn. So what they jump is not just one or two "steps", but a long way back
on these steps, there will be many bears who are about to hibernate and need supplementary food. These bears will catch the fish that come out of the water e to jumping, so many fish will die in the bear's growing belly
only after experiencing many difficulties can salmon reach a calm lake at the most upstream to lay eggs. After spawning, the salmon dies, ending its life
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salmon is the common name of some salmonids. Originally, it refers to Salmo salar. With the development of aquaculture, businesses also call Pacific salmon (Oncorhynchus) and other fish "salmon". For example, Oncorhynchus mykiss is a cold water pond fish of Pacific Salmon of Salmonidae, which is also called "salmon" by some businessmen
Salmon, also known as salmon or salmon, is one of the most commonly used fish ingredients in Western food. In the consumer markets of different countries, salmon covers different types. Salmon in Norway is mainly Atlantic salmon, salmon in Finland is mainly cultured large-scale red rainbow trout, and salmon in the United States is mainly Alaska salmon. There are many species of salmon, such as salmon and humpback salmon in Northeast China
distribution range
salmon is also called salmon or salmon. Salmon, known as salmon, is one of the most famous economic fishes in the world. It is mainly distributed in the northern Pacific Ocean and the northern regions of Europe, Asia and America
wild salmon are found in the north of the Atlantic and Pacific Ocean, mainly in Alaska and Canada of the United States, and a small number of wild salmon are also found in Russia and Japan
both Alaska and Canada have strict protection measures for salmon resources. The government of Alaska stipulates that vessels fishing for salmon must have a special license, and only three months a year can go out to sea for fishing, and the fishing quota is limited. The government organizes scientists to investigate and study various natural factors every year, and then calculate the total allowable catch in that year, which is then allocated to each ship. Generally, the allowable fishing amount is controlled between 1 / 7 and 1 / 8 of the total amount of fish stock every year to ensure the breeding of salmon population
salmon is a kind of anadromous fish, which lives in rivers for 1-5 years, and then lives in the sea for 2-4 years. The spawning period is from August to January of the next year. During the migration, they jump over small waterfalls and dams. After a long journey, they can reach the spawning ground without feeding
every year, from July to October, thousands of salmon will breed in the Adams section of the upper Fraser River in Canada
they all come upstream from the Pacific Ocean. The process of marching is going up against the current, and every stage of marching has a ladder like "heightening". To get to a "ladder" is like going up the steps, we need to step up. And fish can only rely on the body to keep jumping, it is possible to reach the next level However, e to the special environment and the special spawning habits of salmon, it is necessary to reach the upper reaches of this long-distance high-altitude ladder to spawn. So what they jump is not just one or two "steps", but a long way back
resources: Internet - Salmon
Salmon belongs to seafood. Salmon is one of the most commonly used fish ingredients in Western food
salmon is rich in nutrients and unsaturated fatty acids. The protein in salmon meat contains 18 kinds of amino acids (including 8 kinds of essential amino acids for human body), and the protein content is significantly higher than that of other fish. In addition, salmon is also rich in a variety of minerals (such as calcium, phosphorus, magnesium, etc.)
there are more than 30 varieties of salmon with commercial value. At present, the most common are two kinds of trout (salmon, golden trout) and four kinds of salmon (Pacific salmon, Atlantic salmon, Arctic whitespot salmon and silver salmon)
points for attention in selecting salmon:
1. Color: Salmon has bright color and strong meat quality; The skin of fish is smooth and not turbid; The fish is orange red, and the fat distribution is marble
2. Hand feeling: fresh salmon feels elastic, and it will recover slowly when pressed down, while fake salmon does not feel elastic
3. Taste: fresh salmon tastes firm and full, rich in fish oil, sweet and fragrant, smooth in texture, even in fat, not too greasy. The fake rainbow trout is lighter in color, chewy and easy to distinguish in taste
Salmon, also known as salmon or salmon, is one of the most commonly used fish ingredients in Western food
the body of salmon is flat, the back is raised, the teeth are sharp, the scales are small, silver gray, and there are orange stripes ring spawning. Salmon is compact and delicious, pink and elastic
in the consumer markets of different countries, salmon covers different types. Salmon in Norway is mainly Atlantic salmon, salmon in Finland is mainly cultured large-scale red rainbow trout, and salmon in the United States is mainly Alaska salmon. There are many species of salmon, such as salmon and humpback salmon in Northeast China
Extended data:there are more parasites in wild salmon, and anisakia is the most common, which is easy to cause abdominal pain and diarrhea, but marine parasites can not survive in human body for a long time
in comparison, there may be fewer parasites in cultured salmon. It is worth noting that freshwater rainbow trout is sometimes used as sashimi, but its risk is far greater than that of salmon
this is because parasites in freshwater fish can survive in human body, and the most common one is Clonorchis hepatica. Therefore, fresh water cultured rainbow trout can not be eaten raw. Anisakis can be killed by freezing. Shanghai food and Drug Administration recommended freezing at - 20 ℃ for more than 24 hours or freezing at - 35 ℃ for 15 hours according to foreign standards
When it comes to Japanese cuisine, the first thing we think of is salmon sashimi. Salmon sashimi is the most important part of sashimi, which is also called "sashimi"; The assassin;, In terms of taste, the meat is delicate, and there are no extra tendons and bones on the fish. Color is also very good-looking, red and white separated, white strip for unsaturated fatty acids, in all fish, salmon unsaturated fatty acids are the most, every 100 grams can reach 27 grams of fatty acids. It can effectively prevent the incidence of hypertension patients and patients with heart disease. Because it is a deep-sea cold water fish, salmon in order to maintain their life in deep-sea cold water must store a wealth of fat, so we see good salmon fat stripes are very beautiful. But why are the prices of salmon on the market different? From tens of dollars a Jin to more than 100 dollars a Jin, let's explore
salmon is now divided into wild and cultured, and the price of wild salmon will be much higher, because the wild salmon belongs to natural catching food, so it is more fierce, and the meat quality will be more compact, but it is difficult to eat in the market, because the wild salmon needs hand fishing or large net fishing, so the yield is very small. The market is basically farmed salmon, although the meat quality is not as good as the wild, but the taste is also first-class
in addition to the factors analyzed by teacher Xiaogong, what other factors affect the price of salmon? Welcome to leave a message in the comment area below
These days, the salmon manufacturer is even more uncomfortable, because he needs to prove that his salmon is not imported, but domestic, which reminds me of Wuhan ck neck some time ago
is less than & quot; Chopping board & quot; But the impact on the spread of disease is very different. If present in salmon, the virus may break through reproctive isolation. It appears on the salmon chopping board, indicating that the virus has little change
for example, in February, we also detected viruses in the handles and buttons of elevator doors. It's obvious that all the viruses on it are human
the virus on salmon cutting board may be caused by salmon. However, the salmon here does not mean that the salmon is infected, and then the virus is brought to the chopping board
the virus was probably brought in ring the processing of imported salmon. Take an extreme example. For example, there is a patient in the origin of imported salmon, who is an employee of a salmon processing factory
therefore, employees may bring the virus to salmon when dealing with salmon. Then, the salmon carrying the virus & lt; I went to Chongyang;, Came to China, and finally found the virus
some people may ask that it takes ten and a half days from importing salmon to processing salmon. Can the virus live that long? Normally, the virus may not survive that long
but imported salmon like this need cold chain transportation. In other words, sars-cov-2 is afraid of heat and cold, which makes the virus live for such a long time. It can be said that this incident was an accident
but some people put forward another viewpoint: & mdash& mdash; Salmon is an imported food. Why didn't the customs detect the virus? This is because the customs inspection can only carry out random inspection, and can not test every salmon
like my example above, sick employees can only deal with some salmon. It also means that only a few tons of salmon are infected with the virus
at the end of the article, I would like to remind you to eat less imported food before making things clear. Today's salmon may be sick, tomorrow's beef may be sick
all sardine are economic fish species, fresh, dried, salted or smoked, and can be boiled to fish meal or fish oil. The rotary net is the most important fishing device, especially the purse seine. Many other modified rotary nets, such as falling nets or weirs, are also used. Weir is a fixed paddock consisting of piles, and sardine swimming will be carried along the coast. Fishing is mainly carried out at night when the fish are floating on the surface to feed on plankton; After catching, the fish are soaked in salt water and transported ashore<
Introction
salmon, also known as salmon or salmon, is a kind of cold water fish growing in high latitude areas such as Canada, Norway, Japan and the United States. Salmon is a general term. Salmon is a transliteration of English salmon. Its English meaning is "Salmonidae". Salmon is divided into Salmonidae Salmonidae and Salmonidae Salmonidae Salmonidae. Salmo trutta and Oncorhynchus mykiss are two species of trout in the salmon family.
New Brunswick, Canada, has a natural connection with the sea. In Campbell village, which is known as the "hometown of salmon", we saw a unique statue of salmon. According to reports, in 1997, Canadian fishermen caught a salmon 8.5 meters long and weighing 1 ton in miramitch Bay in eastern Canada, which is considered to be the largest salmon ever found in the world. The following year, in Campbell Town, near miramich, the statue was built to the size of the fish.
legal representative: Hong Jie
time of establishment: February 26, 2015
registered capital: RMB 50 million
Instrial and commercial registration number: 340100001199750
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