Is salmon a deep-sea fish?
Salmon, a kind of deep-sea fish, is born in fresh water, then moves to sea water to grow, and then returns to fresh water to breed. Salmon, also known as salmon or salmon, is one of the more commonly used fish ingredients in western food. Salmon covers different species in different consumer markets in different countries.
When eating salmon, you should pay attention to:
There are many parasites in wild salmon, of which Anisakis is the most common, which is easy to cause abdominal pain and diarrhea, but marine parasites can not survive in the human body for a long time. In contrast, there may be fewer parasites in farmed salmon.
It is worth noting that freshwater farmed rainbow trout are sometimes used as sashimi, but it is far more risky than salmon. This is because parasites in freshwater fish can survive in the human body, the most common of which is liver fluke.
Therefore, freshwater farmed rainbow trout cannot be eaten raw. Anisakis can be frozen to death by freezing.
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How long can the tap water be kept for fish farming?
Tap water can be used to raise fish for 2-3 days. In the actual feeding, in order to keep the fish tank clean and oxygen sufficient, it is necessary to change the water frequently. In order not to drastically change the water quality and water temperature, the method of mixing water is generally used to change the water, not to change the place at once.
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When does passion fruit blossom
Passion fruit usually blossoms in June every year. As an autumn fruit, its florescence is from May to July and its fruiting period is from July to September. Depending on the difference in temperature, it may be possible to blossom earlier or later. Cultivation techniques of passion fruit 1. Temperature egg fruit is the most suitable
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