Composite marine biological preparation for fish and shrimp

A technology of marine organisms and preparations, applied in the application, animal feed, animal feed, etc., to achieve the effect of being conducive to healthy development, preventing diseases, and improving immunity

Inactive Publication Date: 2012-07-04
GUANGXI INST OF FISHERIES
0 Cites 3 Cited by

AI-Extracted Technical Summary

Problems solved by technology

At present, there are few researches on seaweed used in the prevention and treatment of aquatic animal disea...
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Method used

Result is as follows: the end average body weight of each test group, weight gain rate are all higher than matched group, through t test, difference is significant (p<0.05), and feed factor is all lower than control group, through t test, difference is significant (p<0.05). The results showed that the compound marine b...
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Abstract

The invention discloses a composite marine biological preparation for fish and shrimp. The composite marine biological preparation is characterized by comprising the following components in percentage by weight: 30-40% of nori, 30-40% of Gelidium amansii Lamx and 30-40% of gulfweed. The composite marine biological preparation can improve metabolism of fish and shrimp, promote growth and development, improve immunologic function of fish and shrimp and prevent and control diseases, is a novel green feed additive and is beneficial to the sustainable healthy development of aquaculture.

Application Domain

Technology Topic

ShrimpMarine life +7

Image

  • Composite marine biological preparation for fish and shrimp
  • Composite marine biological preparation for fish and shrimp

Examples

  • Experimental program(1)

Example Embodiment

[0008] Implementation example 1:
[0009] Laver, agaricus, and sargassum were respectively placed in an electric vacuum drying oven at 60° C. for vacuum drying for 6-12 hours. Then put the dried seaweed into a high-speed pulverizer for pulverization, and sieve through a 100-mesh sieve. Weigh 35 kilograms of raw laver, 35 kilograms of agarose cauliflower, and 30 kilograms of sargassum and mix them evenly, pack them into plastic bags, seal them, and store them at room temperature.
[0010] Implementation example 2:
[0011] Laver, agaricus, and sargassum were respectively placed in an electric vacuum drying oven at 60° C. for vacuum drying for 6-12 hours. Then put the dried seaweed into a high-speed pulverizer for pulverization, and sieve through a 100-mesh sieve. Weigh 30 kg of raw seaweed, 30 kg of agarose cauliflower, and 40 kg of sargassum and mix them evenly, pack them into plastic bags, seal them, and store them at room temperature.
[0012] The addition amount of the compound marine biological preparation for fish and shrimp of the present invention is 0.15% to 0.5% of the feed weight.
[0013] The experiment of feeding tilapia with the present invention is as follows:
[0014] The compound marine biological preparation for fish and shrimp of the present invention is added to the basic feed in proportions of 0.1%, 0.2% and 0.3% respectively to make granular medicinal baits. The main components of the basic feed are 46.8% crude protein, 3.4% crude fat, 12.5% ​​crude ash, and 8.1% moisture.
[0015] Choose healthy tilapias of uniform size, set up 3 test groups (Ⅰ, Ⅱ, Ⅲ) and 1 control group, put 40 shrimps in each group, and raise them separately in PVC aquariums of 120cm×80cm×60cm. The groups were fed with 0.1%, 0.2%, and 0.3% compound marine biological preparation bait, and the control group was fed with basic feed. Feed 5% of the body weight every day, and feed twice in the morning and afternoon. Every morning, use the siphon method to suck out the residual bait and feces at the bottom of the pond. During the test period, the water temperature was 20-25°C, and the air was filled for 24 hours. After feeding for 15 days, the relevant indicators were measured. After feeding, 15 fish from each group were placed in another aquarium, and 0.1 mL of Streptococcus tilapia was injected for the challenge experiment; another 15 fish were placed in another aquarium, and the original The basal feed was fed, the cumulative death of the fish was recorded within 7 days, and the relative survival rate was calculated.
[0016] The result is as follows: the final average body weight and weight gain rate of each test group are all higher than the matched group, through the t test, the difference is significant (p<0.05), and the feed coefficient is all lower than the matched group, through the t test, the difference is significant (p<0.05). 0.05). The results showed that the compound marine biological preparation had the effect of increasing the weight gain rate of tilapia and reducing the feed coefficient (Table 1). Through the challenge test of Streptococcus tilapia, it was found that the addition of compound marine biological preparations significantly improved the disease resistance of tilapia (Table 2).
[0017] Table 1. Tilapia Growth, Survival and Feed Conversion
[0018]
[0019] Table 2. Cumulative mortality within 7 days after injection of Streptococcus tilapia
[0020]
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Description & Claims & Application Information

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