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Nutrient enrichment fodder for improving capability of juvenile tilapia resisting streptococcus agalactiae

A technology of streptococcus lactis and nutritional enhancement, applied in animal feed, animal feed, application, etc., can solve problems such as damage to the healthy development of the tilapia industry, economic loss, and non-recommended use, and achieve the effect of facilitating large-scale promotion

Inactive Publication Date: 2014-04-30
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, streptococcal disease has brought huge economic losses to the tilapia industry and has seriously damaged the healthy development of the tilapia industry
Traditional disease control strategies, primarily the use of antibiotics and chemical fungicides, are no longer recommended due to the emergence of drug-resistant bacterial pathogens and growing concerns about environmental impact and conservation

Method used

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  • Nutrient enrichment fodder for improving capability of juvenile tilapia resisting streptococcus agalactiae
  • Nutrient enrichment fodder for improving capability of juvenile tilapia resisting streptococcus agalactiae
  • Nutrient enrichment fodder for improving capability of juvenile tilapia resisting streptococcus agalactiae

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Formulate the feed according to the formula shown in Table 1, raise 3.12g tilapia for 56 days, and the survival rate of the tilapia in the test group fed with formula 1 was 29.2% after 7 days of challenge with Streptococcus agalactiae, compared with formula 2 (no milk chain The survival rate was 16.7% after 7 days of coccus challenge), and the survival rate was increased by 75%.

Embodiment 2

[0025] Formulate the feed according to the formula shown in Table 2, raise 3.12g tilapia for 56 days, and the survival rate of the tilapia in the test group formula 3 is 41.7% after 7 days of challenge with Streptococcus agalactiae, which is the same as that of formula 1 (no milk chain The survival rate was 29.2% after 7 days of coccus challenge), and the survival rate increased by 42.86%.

Embodiment 3

[0027] The feed was prepared according to the formula shown in Table 3, and 3.12 g of tilapia were fed for 56 days. The survival rate of tilapia fed with formula 3 of the amino acid test group was 41.7% after 7 days of challenge with Streptococcus agalactiae, which was the same as that of formula 1 (no milk). Streptococcus challenge 7 days after the survival rate was 41.7%), the survival rate will not decrease.

[0028] Table 1 Example 1 Feed formula and nutrient composition analysis (%)

[0029]

[0030] 1. Amino acid mixture, histidine 0.22; isoleucine 0.39; lysine, 1.87; methionine, 0.28; threonine, 0.20; tryptophan, 0.25; valine, 0.28; aspartic acid, 1.09; Serine, 0.34; Glutamic acid, 0.02.

[0031] 2. Each kilogram of feed contains thiamine, 20mg; riboflavin, 20mg; pyridoxal, 10mg; niacin, 100mg; calcium pantothenate, 50mg; biotin, 1mg; folic acid, 5mg; , 50mg; Vitamin A, 2mg; Vitamin B12, 0.02mg; Vitamin K3, 10mg; Vitamin D3, 0.05mg.

[0032] 3. Each kilogram of fe...

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Abstract

The invention discloses a nutrient enrichment fodder for improving the capability of juvenile tilapia resisting streptococcus agalactiae. The fodder comprises the following nutrient components by mass percent: 25-40 parts of protein source raw material, 3-10 parts of fat source raw material, 30-55 parts of carbohydrate source raw material, 0-3.5 parts of complex vitamin, 0-3.5 parts of complex mineral salt, 0-0.5 part of antioxidant, 0-5 parts of adhesive, 0-15 parts of cellulose, 0-3.0 parts of glycine, and 0-3.0 parts of arginine. The fodder can meet the nutritional requirement of the tilapia on maintaining best immune state, can effectively improve the capability of juvenile tilapia resisting streptococcus agalactiae, not only can lower morbidity of the tilapia in cultivation, but also can improve the industrial profit. The fodder has good palatability, has no drug residue in the tilapia, meets the requirement of environment-friendly healthy aquatic products, and has significance to realization of sustainable development of tilapia cultivation.

Description

technical field [0001] The invention relates to the field of tilapia feed, in particular to a nutrient-enhanced feed for improving the anti-streptococcus agalactiae ability of young tilapia fish. Background technique [0002] Tilapia is an important freshwater farmed fish in my country. With the rapid growth of demand for tilapia in the international market, China's tilapia industry has developed rapidly. At present, streptococcal disease has brought huge economic losses to the tilapia industry, and has seriously damaged the healthy development of the tilapia industry. Traditional disease control strategies, primarily the use of antibiotics and chemical fungicides, have been deprecated due to the emergence of drug-resistant bacterial pathogens and growing concerns about environmental impact and conservation. Functional amino acids, like additives such as Chinese herbal medicines, can stimulate the fish's immune system and help fight disease. Therefore, it is urgent to res...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/10A23K1/14A23K1/16A23K1/175
Inventor 杨弘乐贻荣邹芝英李大宇肖炜祝璟琳韩珏
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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