Special nutrition enhancer for parent fishes of cold water fishes and use method of special nutrition enhancer

A nutritional enhancer and technology for cold-water fish, which can be applied in application, climate change adaptation, animal feed, etc., can solve the problems of lack, poor nutritional status of cold-water fish broodstock, low reproductive ability, etc., to reduce loss, easy to use, and simple to operate Effect

Active Publication Date: 2020-08-25
山东省海洋资源与环境研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the current lack of nutritional enhancers specifically for cold-water fish broodstock, resulting in poor nutritional status and low reproductive capacity of cold-water fish broodsto

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In this example, the nutritional enhancer for male broodstock in stage I uses the following raw materials in parts by weight: 18 parts of Schizochytrium sp., 15 parts of Nannochloropsis, 15 parts of Haematococcus pluvialis, 10 parts of phospholipids, and envelope essence. 15 parts of amino acid, 8 parts of enveloped isoleucine, 4 parts of enveloped leucine, 3 parts of enveloped valine, 0.25 parts of vitamin A, 0.5 parts of vitamin C, 1 part of zinc sulfate, 1 part of yeast selenium, N - 2 parts carbamoylglutamate (NCG), 2 parts bile acid, 5.25 parts bran.

[0043] The nutritional enhancer for male broodstock in stage II uses the following raw materials in parts by weight: 12 parts of Schizochytrium sp., 10 parts of Nannochloropsis, 20 parts of Haematococcus pluvialis, 10 parts of phospholipids, 20 parts of enveloped arginine, 6 parts of enveloped isoleucine, 3 parts of enveloped leucine, 3 parts of enveloped valine, 0.25 parts of vitamin A, 0.5 parts of vitamin C, 0.25 ...

Embodiment 2

[0059] In this example, the raw material of Stage I male parent fish-specific nutrient enhancer contains the following components in parts by weight: 18.5 parts of Schizochytrium sp., 15.5 parts of Nannochloropsis, and 15.5 parts of Haematococcus pluvialis. 9 parts of phospholipids, 14 parts of enveloped arginine, 7 parts of enveloped isoleucine, 3.5 parts of enveloped leucine, 3.5 parts of enveloped valine, 0.3 parts of vitamin A, 0.5 parts of vitamin C, sulfuric acid 1.5 parts of zinc, 1.5 parts of yeast selenium, 2 parts of N-carbamylglutamic acid (NCG), 2.5 parts of bile acid, 5.2 parts of bran;

[0060] Stage II male broodstock nutritional enhancer, the raw material contains the following components, according to the weight of each component: 12.4 parts of Schizochytrium sp., 10.2 parts of Nannochloropsis, 21 parts of Haematococcus pluvialis, and 11 parts of phospholipids 20 parts of enveloped arginine, 5 parts of enveloped isoleucine, 2.5 parts of enveloped leucine, 2.5 ...

specific example

[0077] 1. In October 2016, a sturgeon nursery in Linyi, Shandong Province began to strengthen the nutrition of broodstock (10 female broodstock and 2 male broodstock) by adopting the special nutrition-enhanced compound feed for broodstock.

[0078] In March 2017, induced labor, fertilization and breeding began. The reproductive production lasted for 42 days, and a total of 5 batches were induced.

[0079] A total of 5.5 million fertilized eggs were harvested in this breeding production, and 4.5 million sturgeon fry were bred. The average egg production of broodstock is 550,000 eggs / tail, the relative fecundity is 11,000 eggs / kg, the egg weight is 40,000 eggs / kg, and the hatching rate is 81.82%.

[0080] Compared with broodstock breeding and production that did not eat cold-water fish broodstock-specific nutrient fortifiers for intensive feeding, the egg weight increased by about 15%, the amount of eggs laid increased by about 23%, and the average hatching rate increased by 30%...

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Abstract

The invention relates to a special nutrition enhancer for parent fishes of cold water fishes and a use method of the special nutrition enhancer, and belongs to the technical field of aquaculture. According to the genders of the parent fishes, the enhancer is divided into a special nutrition enhancer for male parent fishes and a special nutrition enhancer for female parent fishes; the special nutrition enhancer for the male parent fish comprises a special nutrition enhancer for section-I male parent fishes and a special nutrition enhancer for section-II male parent fishes; and the special nutrient enhancer for the female parent fishes comprises a special nutrient enhancer for section-I female parent fish, a special nutrient enhancer for section-II female parent fishes and a special nutrientenhancer for section-III female parent fishes. Different raw material formulas are selected according to the growth characteristics of the parent fishes in different time periods, and nutrient enrichment is carried out at different times, so that the nutrient state of the parent fishes of the cold water fishes is improved. The special nutrition enhancer has the advantages of scientific formula, reasonable process, convenience in use and strong pertinence, supplements special nutrient elements in a breeding production process of the parent fishes of the cold water fishes, and improves the reproductive capacity of the parent fishes by adding functional substances.

Description

technical field [0001] The invention relates to a nutritional enhancer specially used for broodstock of cold-water fish, a preparation method thereof and a method for using the nutritional enhancer specially used for broodstock, specifically, a special nutrition for broodstock of cold-water fish produced by optimizing functional feed materials and matching biologically active substances The enhancer and its application method belong to the technical field of aquaculture. Background technique [0002] Cold-water fish refers to fish that live in water with a water temperature lower than 20°C. Common cold-water fish include sturgeon, rainbow trout, Schizothorax, turbot, scorpionfish, Atlantic salmon (salmon), etc. Due to the low temperature of the living environment, these fish have higher requirements for liquid fatty acids against low temperature and anti-oxidative vitamins. Broodstock is a special stage in the reproduction process of fish. Its own requirements for nutrients...

Claims

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Application Information

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IPC IPC(8): A23K10/16A23K10/37A23K20/111A23K20/142A23K20/158A23K20/174A23K20/20A23K50/80
CPCA23K50/80A23K10/16A23K20/158A23K20/142A23K20/174A23K20/30A23K10/37A23K20/111Y02A40/818Y02P60/87Y02A40/81
Inventor 李宝山郝甜甜卜洪医孙永智宋志东黄炳山王际英
Owner 山东省海洋资源与环境研究院
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