Cultivation feed for adult Changjiang crabs

Abstract

The invention discloses a cultivation feed for adult Changjiang crabs. The cultivation feed contains the following components in parts by weight: 1-3 parts of choline chloride, 5-10 parts of plant oil, 50-60 parts of high protein flour, 35-45 parts of bean pulp, 0.5-0.8 part of lactic acid bacteria-produced extracellular polysaccharide, 0.015-0.02 part of sesbania powder, 18-30 parts of corn starch, 0.1-0.3 part of a composite mineral substance additive, 0.03-0.1 part of zinc polycarboxylate, 0.15-0.2 part of ecdysterone, 3-5 parts of table salt and 2-5 parts of calcium hydrogen phosphate. According to the cultivation feed, the nutritive values of mineral elements can be increased; and furthermore, the cultivation feed is capable of releasing Ca<2+> which can participate in cross-linking or other reactions so as to change the textures of plant foods, sufficient nutrients can be supplied to adult crabs, the production can be promoted, and the nutritional value of the crabs is high.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a breeding feed for adult crabs of the Yangtze River. Background technique [0002] The scientific name of Yangtze River crab is Chinese mitten crab. Chinese mitten crab is a kind of economic crab, also known as river crab, hairy crab, clear water crab, and hairy crab. It is a famous delicacy in China. Its chelicerae are used for feeding and fighting against enemies, and the inner and outer edges of the palm are densely covered with hairs, hence the name mitten crab. Omnivorous animals, fish, shrimp, snails, mussels, worms, earthworms, insects and their larvae can be used as animal bait for hairy crabs. Eriocheir sinensis is widely distributed in the Yangtze River, Oujiang River, Liaohe River and other water systems, among which the Yangtze River has the largest output and extremely delicious taste. Although the river crabs in the Yangtze River, Oujiang River and Liaohe Ri...

AI Technical Summary

Problems solved by technology

However, due to the continuous occurrence of bacterial and viral diseases of Chinese mitten crabs, the breeding and production of Chinese mitten crabs are seriously affected. At present, the number of wild river crabs is limited. The main source of river crabs on the daily table is artificial breeding, but if the breeding is not good , the production size is small, and the growth is slow, the absorption of nutrients is poor, often there is more feed, the corresponding effect cannot be achieved, resulting in a lot of waste