Compound feed of young scylla paramemosain and preparation method thereof

Abstract

The invention discloses compound feed of young scylla paramemosain and a preparation method thereof. The compound feed is characterized in that the compound feed is prepared from the following components in parts by weight: 30-40 parts of fish meal, 10-20 parts of bean pulp, 5-10 parts of corn protein powder, 3-5 parts of saccharomyces cerevisiae, 3-10 parts of krill powder, 5-7 parts of crab shell powder, 1.5-2.0 parts of fish oil, 1-2 parts of soybean oil, 5-10 parts of granulesten, 0.5-1 part of cholesterol, 10-25 weight parts of flour, 0.2-0.5 weight part of vitamin mixture and 0.5-1 weight part of mineral substance mixture. The preparation method provided by the invention comprises the following steps: mixing the components; carrying out the quenching and tempering on the mixture under certain vapor pressure, humidity and temperature; curing the mixture after the quenching and the tempering under the conditions that the temperature is 135 DEG C, the pressure is 3MPa, and the time is 90-120 seconds; and finally, extruding into the feed with the particle diameter 0.1-0.5mm. The compound feed provided by the invention has the advantages of enhancing the growth speed and survival rate of the young scylla paramemosain.

Description

technical field [0001] The invention relates to a feed for aquaculture, in particular to a compound feed for young mud crabs and a preparation method thereof. Background technique [0002] According to statistics, the breeding area of ​​blue crabs in the whole country is about 500,000 mu, and the output exceeds 100,000 tons. It is the second largest product in the seawater famous, special and high-quality new products after prawns. The breeding of blue crabs in Zhejiang Province and even the whole country has become a major seawater product. A dominant industry in pond culture. [0003] At present, most of the breeding of young crabs of Scyllas adopts biological bait such as fresh small miscellaneous fish, shrimps and shellfish (such as clams and mussels) as feedstuffs. Physiological characteristics such as low activity, and the biological bait is difficult to store, and the nutritional quality is easily affected by factors such as changes in the environment and the type of...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the breeding of young Scyllas adopts biological bait such as chilled small miscellaneous fish, shrimp and shellfish (such as clams and mussels) as feedstuffs. However, young Scyllas have immature digestive tracts and digestive enzymes Physiological characteristics such as low activity, and the biological bait is difficult to store, and the nutritional quality is easily affected by factors such as changes in the environment and the type of biological bait (such as different types of chilled fish), which leads to the survival rate and feed conversion rate of young crabs. It has become one of the main obstacles for the production of blue crabs to have a major breakthrough. At the same time, problems such as marine environmental pollution caused by feeding biological baits have aroused widespread concern from government departments.