Special compound additive for eriocheir sinensis in fattening period, and preparation method and application thereof

Abstract

The invention discloses a special compound additive for eriocheir sinensis in fattening period. In per 1 kilogram of the special compound additive for the eriocheir sinensis in the fattening period, the compound additive comprises the following components in the following contents: 10-20 grams of vitamin E, 10-30 grams of astaxanthin, 50-200 grams of lecithin, 1-5 grams of an antioxidant, and thebalance of a carrier. Being added into river crab feeds, the special compound additive for the eriocheir sinensis in the fattening period provided by the invention is capable of significantly improving anti-stress ability of river crabs in fattening period, accelerating sexual maturation progress of the river crabs and increasing weight gain rates of the river crabs, thereby ensuring that marketedriver crabs are abundant in crab paste (mainly composed of accessory gonads and secretion thereof) and fat; and moreover, the compound additive is safe as well as free of toxic and side effects in long-term use.

Description

technical field [0001] The invention belongs to the technical field of feed additives, and in particular relates to a compound additive specially used for fattening Chinese mitten crabs and its preparation method and application. Background technique [0002] Chinese mitten crab (also known as river crab, hairy crab, clear water crab, and hairy crab) belongs to the phylum Arthropoda, the class Molecula, and the family Crabidae, and is a kind of economic crab. 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. Hereinafter collectively referred to as "river crab". [0003] In nature, river crabs are omnivorous animals. Fish, shrimp, snails, mussels, worms, earthworms, insects and their larvae can be used as animal bait for river crabs. Artificial breeding mainly feeds special compound feeds. It is widely distributed in lakes along the north and south coasts in...

AI Technical Summary

Problems solved by technology

[0005] First, the price of chilled fresh fish is unstable; the price of chilled fresh fish has risen significantly in the later period, and the cost of feeding has increased

[0006] Second, the quality of chilled fish is worrying, harmful bacteria exceed the standard, and the incidence of enteritis after ingestion of river crabs increases

[0007] The third is to lose fat quickly. The fattening effect of crabs fattened with chilled fish comes and goes quickly. If they cannot be sold on the market in time, it is easy to lose yellow and fat, which is the so-called fat loss. City and crabs are very unfavorable