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Feed for cultivating ecologically marked flounder and its application method

An application method and a flounder technology, which are applied in the field of feed for cultivating ecologically marked flounder, can solve the problems of affecting the movement and predation of released fry, difficult to use in large-scale release, and difficult to identify by recapture, so as to achieve easy recapture and easy identification. , easy to quantify, the effect of increasing mortality

Inactive Publication Date: 2018-07-06
全国水产技术推广总站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The most commonly used method is the "T" marking method. From the above table, it can be seen that the release of fish fry is too small to be used, and it is easy to cause secondary infection, and it is not easy to use in large-scale release; Cutting less can only be used as a short-term marker, and cutting too much will affect the movement and predation of released fry; molecular markers, fluorescent dyeing markers and other "high, large, and high" methods are not only expensive, but also difficult to identify later.

Method used

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  • Feed for cultivating ecologically marked flounder and its application method
  • Feed for cultivating ecologically marked flounder and its application method
  • Feed for cultivating ecologically marked flounder and its application method

Examples

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Effect test

Embodiment 1

[0043] A feed for cultivating ecologically marked flounder, including rotifers fortified with nutrient fortifiers and artemia after nutrient fortifiers fortified; the amount of nutrient fortifiers in the rotifers after fortification is: for every 100 million rotifers 13-30g of nutritional enhancer to strengthen nutrition; the amount of nutritional enhancer added to the strengthened Artemia is: 50g-100g of nutritional enhancer is used to strengthen nutrition for every 100 million Artemia;

[0044] The composition of nutritional supplements includes DHA, EPA, vitamins and amino acids; vitamins include VA, VD and VE; Isoleucine, Leucine, Lysine, Phenylalanine, Proline, and Serine;

[0045] As a further preferred embodiment, the amount of various ingredients in the feed (relationship with the flounder) is: the rotifers strengthened by the nutritional enhancer are added in an amount of 0.5 to 2 billion / 1 million tails; The final Artemia was added in an amount of 0.7 to 3 billion / 1...

Embodiment 2

[0054] An application method for cultivating a feed for ecologically marked flounder, the application method comprising:

[0055] Feeding amount: the daily feeding amount of rotifers after the nutritional fortifier is strengthened is: 0.5 to 2 billion / 1 million; the daily feeding amount of Artemia after the nutritional fortifier is strengthened is: 0.7-3 billion / 1 million tails; the daily feeding amount of the compound feed is 3-10% of the body weight of the larvae; the daily feeding amount of the chlorella is: 1-3m 3 / 1 million tails;

[0056] Feeding method: flounder from 3 to 28 days old is fed daily with chlorella and rotifers fortified with nutritional fortifiers until 26 to 30 days old, preferably until 27 or 28 days old age or 29 days; from the age of 12 days, daily feeding of artemia fortified with nutritional fortifiers until the age of 40 to 46 days, for example, can be fed to 44 days or 45 days or 46 days; from 17 days From the age of day, feed the compound feed e...

Embodiment 3

[0066] An application method for cultivating a feed for ecologically marked flounder, the application method comprising:

[0067] S1: After the cement pool is sterilized, it is used as a culture tank, and filtered water is added. The culture tank is equipped with an aeration device, and the inflation valve on the aeration device is adjusted to make the surface of the pool have microwaves. The density is 0.2~20,000 tails / m 3 , specifically through the growth of flounder and its stocking density decreases;

[0068] S2: When the larvae are 3 days old, the larvae open their mouths and start feeding the rotifers after larvae are 26-30 days old, preferably until the larvae are 27 days old, 28 days old or 29 days old;

[0069] The amount of nutritional enhancer added in rotifers is: 13-18g of nutritional enhancer for every 100 million rotifers from 3 days to 11 days old; 20-18g per 100 million rotifers 30g of nutrition enhancer to strengthen nutrition; after 20 days of age, the dos...

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Abstract

The invention relates to a feed for cultivating ecologically marked flounder and an application method thereof, comprising compound feed, rotifers strengthened by a nutritional enhancer, and artemia strengthened by a nutritional enhancer; Addition amount is: every 100 million rotifers is strengthened with 13-30g nutritional enhancer; the added amount of nutritional enhancer in the strengthened Artemia is: every 100 million Artemia is strengthened with 50g-100g nutritional enhancer; The ingredients of the agent include DHA, EPA, vitamins and amino acids. The feed of the present invention is nutritious and has no side effects, and the most important thing is that it can make the flounder without the ecological mark of melanin deposition spots on the eye side, and the feed not only does not increase the mortality rate, but does not affect growth, and it is also found in the test that the use of The feed of the invention feeds the flounder, and its survival rate is obviously improved.

Description

technical field [0001] The invention relates to a feed for cultivating ecologically marked flounder, in particular to a feed for cultivating ecologically marked flounder and an application method thereof. The ecologically marked flounder is mainly used for statistical research on release. Background technique [0002] Flounder (Paralichthys olivaceus) is mainly distributed in my country's Bohai Sea, Yellow Sea, East China Sea, South China Sea, Korea, and Japan. The living environment is mostly near the coastal waters with a depth of 20-50m and a smooth tidal current. Its habitat is mostly sandy mud, sandstone or rocky reefs. Flounder is a valuable warm-temperate, bottom-dwelling marine economic fish, and one of the important seawater economic fish in the northern coast of my country. [0003] Due to the previous excessive trawling, the wild resources of flounder in my country have declined seriously. For this reason, governments at all levels attach great importance to it,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/80A23K10/20A23K20/158A23K20/174A23K20/142A23K10/30A01K61/95
CPCY02A40/81
Inventor 于广宝李刚
Owner 全国水产技术推广总站
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