Feed additive for larvae of hypophthalmichthys molitrix

Abstract

The invention mainly relates to the technical field of aquaculture, and discloses a feed additive for larvae of hypophthalmichthys molitrix. The feed additive is prepared from the following raw materials: fructus paulowniae, ulmus parvifolia leaf, toxicodendron succedaneum leaf, folium celtidis sinensis, fructus viticis negundo, caulis et folium lespedezae bicoloris, fructus caulis celastri, lonicera maackii, folium robiniae pseudoacaciae, viburnum dilatatum leaf extract, white granulated sugar, lactic acid bacteria and complex enzyme. The feed additive disclosed by the invention is rich in raw materials, is extracted from pure plants, contains no any toxic reagents, and is green and environmental-friendly; the raw materials are firstly steamed and boiled under high temperature and is then frozen under low temperature, so that the extraction of effective ingredients is quickened; the raw materials are fermented through the lactic acid bacteria, so that the palatability is increased, the food intake of the larvae of the hypophthalmichthys molitrix is increased, the disease resistance of the larvae is increased, and growth and development are promoted; the raw materials are respectively extracted through water, salt and an alcohol solution, so that the extraction rate is increased by 12.7 percent, and the production cost is reduced; the feed additive is convenient to use and small in dosage, the resistivity and the growing speed of the larvae of the hypophthalmichthys molitrix can be enhanced, the morbidity is reduced to 4 percent, the length of the larvae is up to 27.3mm when the larvae are 20 days old, and the survival rate is up to 98 percent.

Description

technical field [0001] The invention mainly relates to the field of breeding technology, in particular to a feed additive for juvenile silver carp. Background technique [0002] Silver carp is also called silver carp, water carp, jumping silver carp and silver carp. It is one of people's favorite edible fish. The meat is fresh and tender, rich in nutrition, rich in protein, amino acid, unsaturated fatty acid and collagen, etc. Nourish the stomach, prevent cardiovascular and cerebrovascular diseases, promote bone and intellectual development, beauty and hair care, delay aging, and prevent cancer. [0003] In the breeding process of silver carp, various diseases will be caused to juvenile silver carp, and the survival rate is low, especially for silver carp juveniles of 8 to 20 days old, the survival rate can only reach about 80%, which increases the survival rate of silver carp. Therefore, it is necessary to add beneficial additives in the feed of silver carp juveniles, and ...

AI Technical Summary

Problems solved by technology

[0003] In the breeding process of silver carp, various diseases will be caused to juvenile silver carp, and the survival rate is low, especially for silver carp juveniles of 8 to 20 days old, the survival rate can only reach about 80%, which increases the survival rate of silver carp. Therefore, it is necessary to add beneficial additives to the feed of silver carp juveniles, and there is no feed additive specifically for silver carp juveniles on the market, especially for silver carp juveniles of 8 to 20 days old