Feed additive capable of increasing exuviation rate during breeding of crabs

Abstract

The invention relates to the technical field of modern agriculture industry, and discloses a feed additive capable of increasing the exuviation rate during breeding of crabs. The feed additive is prepared from the following components in parts by weight: 7.8-8.0 parts of cardamun, 6.3-6.5 parts of flos sophorae, 5.5-6.0 parts of honeysuckle flowers, 8.5-9.0 parts of water chestnuts, 3.0-3.5 partsof hazelnuts, 4.6-4.8 parts of pumpkin peels, 2.7-3.0 parts of Chinese magnoliavine fruits, 4.5-5.0 parts of snakegourd fruit roots, 2.0-2.5 parts of purslane herbs and 110-120 parts of towel gourd juice. The feed additive is processed and prepared from effective components of plants, the number of exuviation times can be increased, the growth speed during the growth period can be increased, the weight is in exponential rise, the somatotype is enlarged by 10-15%, and the feed additive has the effects of promoting the crabs to secrete exuviation hormones, stabilizing hormones to be balanced, reducing self-mutilation rate, promoting growth, enabling the crabs to reach the body index, increasing the feed utilization rate, increasing the protein content in crab meat, and strengthening nutrientcomponents of organisms.

Description

technical field [0001] The invention belongs to the technical field of modern agricultural industry, and in particular relates to a feed additive for improving the molting rate in crab cultivation. Background technique [0002] Crabs, Arthropoda, Crustacea, Molecula, Eurasia, Decapod, Ventricula, Brachyura, are crustaceans whose bodies are protected by hard shells and breathe by gills. In taxonomy, it is the same animal as shrimp, lobster, and hermit crab. Most species of crabs live in the sea or near the sea, and some live in fresh water or land. They rely on the female crab to give birth to small crabs, and each time the female crab will lay a lot of eggs, the number can reach more than millions. Crabs rely on the geomagnetic field to determine direction. China has a long history of eating crabs, which are recorded in "Yi Zhou Shu·Wang Huijie" and "Zhou Li·Tianguan·Bao Ren". The number of such biological genetic material is complex and has great differences, often as m...

AI Technical Summary

Problems solved by technology

[0003] In recent years, the price of crabs has risen steadily, the wild population can no longer meet the market demand, and the scale of crab farming has gradually increased

The growth cycle of crabs is accompanied by molting. The molting of crabs has an important relationship with the supply of nutrients. In addition to the required nutrients, ecdytin also plays an important role. In order to increase the growth rate of crabs, existing methods It is mainly to increase the nutritional content of the feed, and directly put ecdytin into the water body or feed, but the problems brought about by this measure are the continuous increase of the breeding cost, the gradual decrease of the feed utilization rate, the obvious increase of the disease rate of crabs, and the Complications such as hormone disorders occur, causing immeasurable economic losses to farming

Therefore, in crab farming, we should not blindly pursue the content of nutrients, use hormones to regulate the moulting rate, but ignore the impact on the growth performance of crabs, which will not only increase the cost of farming, but also the taste and nutrition of crabs obtained from farming are far inferior to wild crabs, and The body is not up to standard, and the incidence rate is high