Feed additive for larvae of hypophthalmichthys molitrix

A juvenile fish feed and additive technology, applied in the field of aquaculture, can solve the problems of increasing the cost of silver carp aquaculture and low survival rate, and achieve the effects of rich raw materials, increased food intake, and improved extraction rate

Inactive Publication Date: 2017-02-01
王华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 surv

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

[0022] A feed additive for silver carp juveniles, which is made of the following raw materials in parts by weight: Paulownia fruit 41, elm leaf 41, wild lacquer leaf 37, hackberry leaf 37, vitex elegans 32, lespedeza 32, and southern snake vine fruit 27 , Lonicera japonica 24, locust leaf 24, viburnum leaf extract 0.2, white sugar 8, lactic acid bacteria 3, complex enzyme 0.04.

[0023] For the viburnum leaf extract, crush the viburnum leaf and pass it through an 80-mesh sieve, add 13 times the weight of the viburnum leaf to a 1.2% acetic acid solution with a volume fraction, heat and boil to 1 / 2 the original volume, filter Add a 76% alcohol solution with a volume fraction of 16 times the weight of the filter residue to the filter residue, place it in 47kHz ultrasonic extraction for 35 minutes, filter, combine all the extracts, heat and concentrate to a water content of 5% to obtain viburnum leaf extract .

[0024] The lactic acid bacteria are composed of the fol...

Example Embodiment

[0036] Example 2

[0037] A feed additive for silver carp juveniles, which is made of the following raw materials in parts by weight: paulownia fruit 42, elm leaf 42, wild lacquer leaf 38, hackberry leaf 38, vitex elegans 33, lespedeza 33, and southern snake vine fruit 28 , Lonicera japonica 25, locust leaf 25, viburnum leaf extract 0.3, white sugar 9, lactic acid bacteria 4, compound enzyme 0.05.

[0038] For the viburnum leaf extract, crush the viburnum leaf and pass it through an 80-mesh sieve. Add 14 times the weight of the viburnum leaf with an acetic acid solution with a volume fraction of 1.3%, heat and boil until the volume is 1 / 2, and filter , Add 17 times the weight of the filter residue to the 77% alcohol solution with a volume fraction of 77%, place it in 48kHz ultrasonic extraction for 38 minutes, filter, combine all the extracts, heat and concentrate to a water content of 6% to obtain viburnum leaf extract .

[0039] The lactic acid bacteria are composed of the follow...

Example Embodiment

[0042] Example 3

[0043] A feed additive for silver carp juveniles, which is made of the following raw materials in parts by weight: Paulownia fruit 43, elm leaf 43, wild lacquer leaf 39, hackberry 39, Vitex elegans 34, lespedeza 34, and southern snake vine fruit 29 , Lonicera japonica 26, locust leaf 26, viburnum leaf extract 0.4, white sugar 10, lactic acid bacteria 5, complex enzyme 0.06.

[0044] For the viburnum leaf extract, pulverize the viburnum leaf, pass a 100-mesh sieve, add 15 times the weight of the viburnum leaf, and add a 1.4% acetic acid solution with a volume fraction, heat and boil to 1 / 2 the original volume, filter Add 18 times the weight of the filter residue to the 78% alcohol solution, place it in 49kHz ultrasonic extraction for 40 minutes, filter, combine all the extracts, heat and concentrate to a water content of 7% to obtain viburnum leaf extract .

[0045] The lactic acid bacteria are composed of the following raw materials in parts by weight: Lactobacil...

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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 ...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K10/30A23K10/18A23K20/163A23K20/189A23K10/12
CPCY02A40/818
Inventor 王华
Owner 王华
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