Fish Farming Tank

In the process of fish intensive farming, as the cost of purchasing feed accounts for over 80% of the total farming investment, the correct selection of feed is particularly important. Let's talk about the selection and use of feed throughout the aquaculture process.

1、 Fish fry cultivation stage

Since the water splashes into the pond, the bait is usually thrown the next day. Due to the poor active feeding ability of the water splashes, the main method is to sprinkle soybean milk. Some fine soybean milk can be directly fed by the water splashes, and most of it is used to fertilize water. After the water is fertilized, abundant algae and rotifers can provide sufficient nutrition for fish fry, especially rotifers, which are suitable opening bait for fish fry and are rich in nutrients. Soybean milk sprinkling is generally calculated on the basis of water surface. Each mu of water surface uses 6-8 jin of soybeans, which can be appropriately increased or decreased according to the weight of the water body. It is better to sprinkle it 6-8 times a day, and a small amount of it for many times is more conducive to the feeding and growth of fry and reduces waste.

2. As the fry gradually grow, they can actively feed on larger protozoa and planktonic animals such as cladocerans and copepods. The requirement for feed particles is gradually increasing. At this time, soybean cake powder or powdered formula feed can be sprinkled, and the spraying method is still based on the whole pond spraying. A few days before the conversion to crushed material, it gradually changes from whole pond spraying to single pond spraying and gradually guides the feeding platform to form a fixed feeding habit.

3. During the fish fry cultivation stage, the feeding habits of the fish have not yet been transformed. It is necessary to choose high protein and nutrient rich feed to promote the rapid and healthy growth of the fish. Generally, choose an opening material with a protein content of over 36%.

Clawed lobsters and spiny lobsters (pictured right) are an intermediate evolutionary development between shrimp and crabs. They look somewhat like large versions of shrimp. Clawed lobster have large claws while spiny lobsters don't, but have instead spiny antennae and a spiny carapace. Some of the biggest decapods are lobsters. Like crabs, lobsters have robust legs and are highly adapted for walking on the seafloor, though they do not walk sideways. Some species have rudimentary pleopods, which give them some ability to swim, and like shrimp they can lobster with their tail to escape predators, but their primary mode of locomotion is walking, not swimming.

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