Nutritional analysis of shrimp;
1. Shrimp is nutritious, soft and easy to digest. It is excellent food for people who are weak and need to be nursed back to health after illness.
2. Shrimp is rich in magnesium, which plays an important role in regulating heart activity and protecting cardiovascular system. It can reduce the cholesterol content in blood, prevent arteriosclerosis, dilate coronary artery, and help prevent hypertension and myocardial infarction.
3. Shrimp has a strong breast enhancement effect and is rich in phosphorus and calcium, especially suitable for children and pregnant women.
4. No matter what kind of shrimp, it is rich in protein and has high nutritional value. Its meat is as soft and digestible as fish, without fishy smell and bone spurs. At the same time, it is rich in minerals (such as calcium, phosphorus and iron), and shrimp is also rich in iodine, which is very beneficial to human health. According to scientific analysis, protein accounts for about 16 ~ 20% of the edible part of shrimp.
Extended data
Shrimp culture technology;
1, seed selection. Select 100 healthy prawns with the size of 20-50g and the male-female ratio of 1: 1 as parent prawns, feed the selected parent prawns into a cement pond with a length of 6×8×l, the pond is covered with glass fiber reinforced plastic tiles and a heating system, and feed them with the weight of/kloc-every day.
Red crayfish is bright red on the outside of the front, and its claws are longer than its body length; The claws of female shrimp are basically blue, and the length is less than the body length. The reproductive process of mature male shrimp is obviously rod-shaped at the base of the fifth foot; The reproductive pore of female shrimp is open at the base of the third foot. Put some cleaned and disinfected nets in the parent shrimp pond as the hidden objects of the parent shrimp, suck dirt and change water every day, and keep the light at12i:12d (12h light,12h dark).
Step 2 lay eggs. In late April, the parent shrimps began to mate and lay eggs. The mating of red crayfish is soft shell mating. Before mating, the female shrimps should undergo reproductive molting, and the female shrimps begin to lay eggs within 12 hours after the male shrimps produce sperm. The eggs laid by the female shrimp are dark yellow after fertilization and attach to the empty stomach formed by the inward curling of the abdominal foot and tail fan. A shrimp with eggs weighing 48 grams has 326 eggs, a shrimp with high eggs has 44 1 egg, and a shrimp with low eggs has only 27 eggs.
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