Feed for larval crabs and preparation method thereof

Abstract

The present invention discloses a feed for larval crabs and a preparation method thereof. The feed comprises the following compositions in parts by weight: 100-200 parts of soybean powder, 50-80 partsof lemna minor, 50-80 parts of alternanthera philoxeroides, 15-30 parts of wheat bran, 5-20 parts of shrimp shell powder, 15-30 parts of margarya melanioides meat, 10-20 parts of pneumatophorus japonicus, 8-30 parts of oenanthe javanica, 0.5-3 parts of salt, 5-10 parts of carrots, and a small amount of water. The preparation method comprises steps of crushing, fermenting, still putting, thin slice pressing, crushing, granulating, etc. The feed for the larval crabs is unique in ratios, free of any additives, strong in palatability, low in raw material prices and simple in the manufacture technology. The wheat bran is used to conduct fermentation, improves fragrance and is palatable. The manufactured very small granules are not dispersed after falling into water and suitable for the larvalcrabs to eat.

Description

technical field [0001] The invention relates to an aquaculture feed technology, in particular to a crab feed and a preparation method thereof. Background technique [0002] The main problem in the cultivation of buckle crabs in the pond is that the specifications are not uniform. The same batch of crab seedlings stocked at the same time, after 8-9 months of growth, the specifications vary greatly. Most of them have grown into 9-10 stage crabs, each weighing 3-5g, and some are still only 0.3g. The size of a soybean, these short crabs are called "lazy crabs". Most of the reasons come down to the problem of feed. Good feed has good palatability, uniform crab intake and uniform individual size, while feed with poor palatability will reduce the intake of some crabs, which directly leads to different specifications of individuals. Contents of the invention [0003] The object of the present invention is to provide a crab feed with good palatability and consistent size and size...

AI Technical Summary

Problems solved by technology

[0002] The main problem in the cultivation of buckle crabs in the pond is that the specifications are not uniform

Most of the reasons come down to the problem of feed. Good feed has good palatability, and the crabs eat evenly, and the individual size is uniform. However, the feed with poor palatability will reduce the food intake of some crabs, which directly leads to individual differences in specifications.