Tilapia, commonly known as: African crucian carp, non-crucian carp, Vietnamese fish, Nanyang crucian carp and so on. It used to refer to the non-crucian carp species in Mozambique as the origin of the model: the non-crucian carp in Mozambique is now the collective name of several cichlids such as non-crucian carp and non-crucian carp in mouth; English collectively refers to tilapia. At present, it is the focus of freshwater aquaculture in the world, and it is considered as one of the main sources of animal protein in the future.
Tilapia usually live in fresh water, salt water with different salt content and shallow water in lakes, rivers and ponds. Strong adaptability, can breed in small waters, even grow in rice fields, and has strong adaptability to water with less dissolved oxygen. Most tilapia are omnivorous and often eat plants and debris in the water.
Tilapia has a wide range of eating habits, mostly plant omnivores, very greedy and eat a lot; It grows rapidly, especially in its infancy. The growth of tilapia is closely related to temperature. The growth temperature is 16 ~ 38℃, and the optimum temperature is 22 ~ 35℃. It is a euryhaline fish, which can survive in both seawater and fresh water. Resistant to hypoxia, generally inhabiting the lower layer of water, but inhabiting the water layer with the change of water temperature or fish size.
Tilapia has early sexual maturity, short spawning cycle, low requirements for breeding conditions when young fish hatch in their mouths, and naturally breed in water with large water area. Tilapia reached sexual maturity in 6 months, and about 200 grams of female fish had about 1000 ~ 1500 eggs. The male fish in the breeding period has beautiful wedding smoke color, and there are two orifices in the abdomen: anus and urogenital orifice, and white semen flows out from the squeezed abdomen. There are three holes in the abdomen of female fish, namely anus, genital hole and urogenital hole.
When the water temperature is 18 ~ 32℃, the mature male fish has the ability to dig the nest, and the mature female fish enter the nest to pair, lay mature eggs and immediately put them in the mouth for fertilization. The fertilized egg develops in the female fish's mouth, and when the water temperature is 25 ~ 30, the young fish can hatch in 4~5 days. The young fish leave the mother when the yolk sac disappears and has certain ability.
Extended data
The meat of tilapia is delicious and tender, and it is delicious whether braised or boiled. According to the determination, Nile tilapia contains protein 20.5g, fat 6.93g, 1 48kcal, calcium 70mg, sodium 50mg, phosphorus 37mg, iron1mg, vitamin B 1 mg and vitamin B2 0. 1 mg. Tilapia has become the main cultured fish in the world.
Tilapia is delicious, tender and rich in unsaturated fatty acids and protein. It is called "protein source without protein" in Japan.
The general population can eat tilapia. Suitable for all ages, about100g each time. Tilapia is delicious, tender, with few bone spurs and no small muscle spurs. Whether it's braised or steamed, it tastes good. Besides, you can also make whole fish, fillets and fish balls, which can be steamed, boiled, fried, roasted, made into soup or cooked by microwave.
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