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A vitamin feed and additive for improving the immunity of Procambarus clarkii juveniles

A technology of Procambarus clarkii and vitamins, which is applied in the field of vitamin feed and additives to improve the immunity of Procambarus clarkii juveniles, can solve the problems of drug residues, water ecological environment imbalance, and no research reports, etc., and achieve the reduction of MDA content and Effects of SOD activity, immunity improvement, and survival rate improvement

Active Publication Date: 2015-11-11
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The abuse of a large number of fish insecticides and antibiotics, although it has a certain control effect on diseases, often causes problems such as drug resistance of pathogenic microorganisms and drug residues, and even causes an imbalance in the ecological environment of the entire water body
At present, there is no research report on vitamin feed additives to improve the immunity of Procambarus clarkii

Method used

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  • A vitamin feed and additive for improving the immunity of Procambarus clarkii juveniles
  • A vitamin feed and additive for improving the immunity of Procambarus clarkii juveniles
  • A vitamin feed and additive for improving the immunity of Procambarus clarkii juveniles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Trial of Vitamin Feed Formula for Improving Immunity of Procambarus clarkii Juveniles

[0017] The specific formula of the experimental feed is shown in Table 2. The feed is mixed evenly, pressed into strips with a noodle press, then cut into sinking granules about 2mm long, dried in an oven at 60°C for 8 hours, and sealed and stored in a refrigerator at 4°C. The feed did not disperse within 3 hours in the test water. Dextrin is used to make up the difference.

[0018] Table 1 Contents of vitamins A, C and E in different treatment combinations (% dry weight)

[0019]

[0020] 1, 2, and 3 in brackets in Table 1 represent the three levels of each factor.

[0021] Table 2 Feed formulation (% dry weight)

[0022]

[0023]

[0024] Among them, the composition (mass%) of minerals is as follows: KCl, 2.8%; NaH 2 PO 4 , 10%; KH 2 PO 4 , 21.5%; Ca(H 2 PO 4 ) 2 2H 2 O, 26.5%; CaCO 3 , 10.5%; Ca-lac, 16.5%; MgSO 4 ·7H 2 O, 10%; CoCl 2 ·6H 2 O, 0.176%; CuC...

Embodiment 2

[0026] Effects of different vitamin additions on the survival rate of Procambarus clarkii

[0027] Table 3 Range analysis of various factors and their levels on the survival rate and weight growth rate of Procambarus clarkii

[0028]

[0029]

[0030] The survival rate of Procambarus clarkii was different under different combinations of vitamin additions. According to the range in Table 3, it can be found that the C factor (the amount of vitamin E added) has the largest range, indicating that it has the greatest impact on the survival rate of Procambarus clarkii, followed by the B factor (the amount of vitamin C added). And the range value (4) of factor A (vitamin A addition) is smaller than the range value (5.4) in the empty column, indicating that its influence on the survival rate of Procambarus clarkii has not reached a significant level. From the analysis in Table 3, it can be found that the combination of factor levels is A 3 B 1 C 2 or A 3 B 3 C 2The surviv...

Embodiment 3

[0032] Effects of different vitamin additions on body weight growth rate of Procambarus clarkii

[0033] The growth of Procambarus clarkii was also different under different combinations of vitamin additions. See Table 3 for the range analysis results of the body weight growth rate of Procambarus clarkii [(final body weight-initial body weight) / initial body weight]. It can be seen from Table 3 that the C factor (the amount of vitamin E added) has the largest range, indicating that it has the greatest impact on the weight growth rate of Procambarus clarkii. The second is factor A, and the range value of factor B (5.6) is smaller than the range value (11.8) of the blank column, indicating that its influence on the growth rate of Procambarus clarkii has not reached a significant level. From the analysis in Table 3, it can be found that the combination of factor levels is A 3 B 2 C 2 highest weight gain. However, since the influence of B factor on the weight growth rate of Pr...

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Abstract

The invention discloses a vitamin feed and an additive for improving the immunity of young Procambarus clarkii, belonging to the technical field of aquaculture. The vitamin feed for improving the immunity of Procambarus clarkii juveniles contains the following components by mass percentage: 10-30% wheat flour, 10-20% corn flour, 1-2% minerals, 10-30% fish meal, soybeans powder 30-50%, fish oil 1-3%, vitamin A? 0.0048-0.0060%, vitamin C? 0.02-0.08%, Vitamin E? 0.02-0.06%, the balance is dextrin. The vitamin feed additive for improving the immunity of juvenile Procambarus clarkii contains vitamin A, vitamin C and vitamin E. The feed and the additive of the invention can improve the survival rate, weight growth rate and phenol oxidase activity in the gills of the juvenile Procambarus clarkii, reduce the MDA content and SOD activity in the shrimp hepatopancreas, and improve its immunity.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and relates to a method for promoting the healthy culture of Procambarus clarkii, in particular to a vitamin feed and an additive for improving the immunity of young Procambarus clarkii. Background technique [0002] Procambarus clarkii (Procambarus clarkii) belongs to Arthropoda, Crustacea, Decapod, also known as red swamp crayfish, commonly known as freshwater lobster or crayfish. At present, people still know little about the scientific breeding methods of Procambarus clarkii. Coupled with the misleading information of some publicity materials, they think that Procambarus clarkii has low environmental requirements and few diseases, etc., and neglect the prevention and control of its diseases, resulting in Procambarus clarkii. Major diseases occur in the crayfish culture process, causing huge losses to the Procambarus clarkii culture industry. In 2007, major diseases of Procambarus clarkii...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/18A23K1/14A23K1/16
CPCY02P60/22
Inventor 王玉凤邵光明
Owner HUAZHONG NORMAL UNIV
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