A method of manufacturing portunid crab bait

Abstract

The invention provides a method of manufacturing portunid crab bait. The portunid crab bait is composed of the following raw materials, by weight: 3 to 10% of squid paste, 3 to 10% of seaweed powder, , 1 to 5% of soy lecithin, 1 to 5% of fish oil , 3 to 10% of fish meal, 10 ~ 15% of wheat middling, 30 ~ 50% of soybean meal, 10 ~ 15% of high gluten flour, 0.05 to 0.15% of sodium alginate, 0.005 to 0.015% of amino acids, 0.005-0.015% of attractant small peptides, 1 ~ 5%of monocalcium phosphate, 0.005 to 0.015% of dextran, 0.005 to 0.015% of trimethylamine oxide, 0.005 to 0.015% of sulfobetaine, and 0.5 to 1% of potassium sorbate. According to the invention, raw materials such as the squid paste are employed for preparing compound bait for portunid crabs which are small in yield in Zhoushan but have a high commercial value; and the bait is easy to use and has natural attractant effect, ensuring adequate and stable bait supply for crab catching industry.

Description

technical field [0001] The invention relates to a swimming crab bait, in particular to a method for making the swimming crab bait, and belongs to the technical field of feed. Background technique [0002] Swimming crabs are commonly known as "white crabs" in some places. Because the head and breastplate is in the shape of a shuttle, it is named. There are three protrusions in the center of the carapace, so it is also called "three-spotted swimming crab". The male navel is pointed and smooth, the claws are long, and the shell surface is blue; the female navel has fluff, and the shell surface is ocher or spotted. Swimming crab meat is fat and delicious, has high nutritional value and economic value, and is suitable for temporary cultivation in seawater to increase fat. Carapace fusiform, width almost twice as long; carapace surface covered with fine grains, with 2 grain transverse embankments and 3 verrucous protrusions; forehead with 2 sharp teeth; anterior margin with 9 ...

AI Technical Summary

Problems solved by technology

[0004] Portunus fishing has always been a difficult problem for fishermen. The main reason is that there is no suitable commercial bait. All the time, we only use small miscellaneous fish caught. It is greatly affected by the weather and seasons, and it is not easy to ensure the source and quality of bait.

With the widespread promotion and application of cage crabbing technology and significant social and economic benefits, in view of the high cost of bait fish in the current crab cage operation, the short shelf life on board, and the short duration of the lure effect, the cooperation of crab luring is carried out. The study of bait and device, so as to save and use on board, reduce cost, reduce waste, and improve cage catch effect, has become a very urgent topic

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