Vanna Shrimp is penaeus vannamei boone. The appearance of penaeus vannamei boone is similar to that of Fenneropenaeus China and Fenneropenaeus Mojiminyi. Adults can be up to 23cm in length, with thin carapace, light bluish gray in normal body color, no stripes on the whole body, and often chalk-shaped feet, so they are called white-footed shrimp. The length of the tip of the frontal horn does not exceed the second section of the first antenna handle, and its tooth type is upper edge 8-9 and lower edge 1-2.

With China Fenneropenaeus (7-9/3-5), Penaeus monodon (7-8/2-3), Penaeus penicillatus (7-9/4-5), Penaeus Mojiming (6-9/4-5) and Penaeus monodon (5-10/3-). The head breastplate is shorter than other shrimp species, and the ratio to abdominal segment is about1:3. The length of the first antenna stalk is 1/3, and the free part of the lateral lobe of the male connector is longer than that of the central lobe, which is sub-oval.

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In terms of nutritional requirements, the demand for protein in feed for Litopenaeus vannamei is about 28-32%, which is much lower than that for Penaeus monodon in protein (35-39%) and penaeus japonicus (43-52%). In the domestic culture of Litopenaeus vannamei, due to the high seedling density and high yield, the nutrition required by shrimp basically depends on compound bait, so the content of protein in the formula is generally higher than 28-32%, and most of them are around 40%.

In the natural environment, Litopenaeus vannamei is a nocturnal animal, which is active at night and relatively quiet during the day. Under the condition of artificial culture, Litopenaeus vannamei still eats the feed during the day. The study also found that the feeding method of multiple meals a day is much faster than the feeding method of 1-2 meals a day. The amount of feeding at night is much greater than that during the day.

Reference to the above content: Baidu Encyclopedia-penaeus vannamei boone