Sturgeon fry eat biological bait, rotifers, brine worms, water fleas, water worms and so on. Because of the strong enticing power of biological bait, good palatability, and does not pollute the water quality, so most of the fry cultivation farms are using biological bait openings.

Sturgeon adult fish eat, there are fish meal, yeast, blood meal, wheat, corn, silkworm pupae, etc., granular material.

Sturgeon aquaculture:

The net box set specifications 5 meters × 5 meters, 4 meters × 4 meters, mesh coat is a polyethylene structure, mesh size depending on the specifications of the stocked sturgeon species, in order not to escape from the fish and conducive to the exchange of the water body as well as the bottom of the mesh does not leak bait as a principle, the net box should be set to choose the water quality conditions of the water depth of more than 8 meters, and at the same time should also have a micro-current, sheltered from the wind, sunny and wide water surface and other conditions. Large reservoirs should choose a suitable bay to set the net box, small reservoirs should choose not far from the dam to set.

Fry stocking in mid-April to set up the net box, netting soaked by the reservoir has no roughness to reduce the fish species into the box due to the change in the environment of the panic scurrying, and thus the chance of being netting bruises.

The stocking time in mid to late April is appropriate, the water temperature of about 10-15 ℃, is suitable for sturgeon's best growth temperature. Stocking specifications the larger the better, generally 75-150 grams per tail, stocking density is 40-50 tails / square meter. Fish species into the box before the use of 3% -4% of the salt water sterilization, transport water and reservoir water temperature difference of not more than 5 ℃.

Feeding can be done with artificial granular material, the protein content of 42%-45%, the stability of granular material in the water should be high, keep more than half an hour. Fish species into the box should stop baiting for 2-3 days, so that the species to adapt to the environment, 2-3 days after the start of baiting, the beginning of feeding needs to be a small number of times, to lure food.

The particle size of the bait should be adjusted with the increase of the fish body in order to achieve the appropriate taste. Every day in the morning and evening each bait, sturgeon have night feeding habits, night feeding once, the daily bait for the box fish weight of 2% -4%, while the amount of bait should be based on the weather and water temperature and fish feeding situation.

Expanded

The sturgeon has a very narrow diet, is a carnivorous fish, mainly to some small or slow-moving benthic animals to feed on, in the ocean the main fish to feed on, followed by crustaceans, mollusks are less. Sturgeon larvae in the estuary mainly feed on benthic fish snake Kun genus and nymphs and scaly shrimp and clams, etc., spawning period generally stop eating.

Sturgeon are animal feeders and may feed on zooplankton during the larval feeding stage, but soon fry develop a benthic lifestyle. In keeping with this lifestyle, sturgeon at this time have a protruding, inferior mouth. The sturgeon's preferred food varies with different species, with the main food being water worms, crustaceans, mollusks, and small fish. Sturgeon fry can be fed directly after the opening of the artificial feed, in the actual production, the sturgeon fry just open to feed more live bait (zooplankton or chopped water worms feeding).

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