Feed and management technique of Penaeus vannamei Boone

Abstract

Cultured Penaeus vannamei Boone has the advantages of high growth speed, strong adaptability and high yield and becomes one of the main cultured varieties in northern areas of China. (1) pond water color control: the ideal color of water for culturing the Penaeus vannamei Boone is yellow green or yellow brown formed by green algae or diatoms; the algae or diatoms are benign biocenosis in the micro-ecological environment of a pond and play a role of purifying water quality; (2) control of pond water pH value, dissolved oxygen and transparency: the pH value suitable for the Penaeus vannamei Boone is 7.8-8.5, but the peak value of 9.2 is generated at the middle and final stages culturing, and therefore, the pH value control is especially focused in the culturing process; the pH value is not suitable to be high, otherwise, the toxicity of ammonia nitrogen can be increased, thereby restraining the growth of the Penaeus vannamei Boone; (3) scientific bait casting: generally, low-cost iced fish cream or small shells are fed, and some formula feeds are also fed; the formula feeds can be manually compounded; the formula feeds contain the following components: 17 percent of fish meal, 40 percent of soya-bean cake, 28 percent of bran, 10 percent of wheat middling, 3 percent of bone meal and 2 percent of additive; and (4) pond patrol: the pond is patrolled in the morning, at night and in the midnight every day to observe the water color change and whether Penaeus vannamei Boone raise above water to breathe or not; the activity condition, the growth condition and the repletion rate of the Penaeus vannamei Boone are observed by adopting two methods of lamplight observing and spoon-net inspection so as to regulate the bait casting amount and decide whether to start an oxygen-enriching machine or not.

Description

technical field [0001] The invention relates to the field of culture of marine products, in particular to a culture method of Penaeus vannamei. Background technique [0002] The cultured Penaeus vannamei has the advantages of fast growth, strong adaptability and high yield, and has become one of the most important cultured species in northern my country. However, at present, people are using traditional farming methods in the production of shrimp farming. During the farming process, they do not pay attention to the technical essentials of controlling water quality, feeding, and patrolling ponds, resulting in low output and even large-scale shrimp death. Benefit has been seriously lost. SUMMARY OF THE INVENTION [0003] (1) Water quality control [0004] 1. Regulation of pond water color [0005] The ideal water color for the culture of Penaeus vannamei is yellow-green or yellow-brown formed by green algae or diatoms. These green algae or diatoms are a benign biological ...

AI Technical Summary

Problems solved by technology

However, at present, people adopt traditional breeding methods in the production of prawns. During the breeding process, they do not pay attention to the technical essentials of breeding and regulating water quality, feeding, and patrolling ponds, resulting in low yields and even large-scale prawns. serious loss of profit