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Parental nutrition strengthening method for improving quality of fertilized eggs and fingerlings of octopus vulgaris and bait formula

A technology for nutritional enhancement and fertilization of eggs, which is applied in fish farming, animal feed, animal feed, etc., can solve the problems of unclear nutritional physiology of early seedlings, difficulty in large-scale cultivation of seedlings, and low early survival rate, etc. Effects of octopus feeding and gonadal development, promoting large-scale cultivation and improving the quality of fertilized eggs

Inactive Publication Date: 2018-06-05
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the characteristics of fast growth and short breeding cycle, the octopus has increasingly become the target species for development in the world. However, the artificial seedling cultivation of octopus has not yet achieved a breakthrough. Most of the breeding seedlings are collected from natural sea areas, which greatly affects the octopus breeding industry. development of
Under current artificial conditions, the early survival rate of octopus seedling cultivation is very low, less than 5%. Therefore, the large-scale cultivation of its seedlings has always been a worldwide problem. Insufficient bait and nutrient supply

Method used

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  • Parental nutrition strengthening method for improving quality of fertilized eggs and fingerlings of octopus vulgaris and bait formula

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The preparation method of parent nutrition-enhanced bait to improve the quality of octopus fertilized eggs and seedlings is as follows: 260g of fresh swimming crab meat is made into a paste, then 520g of Pacific pleat fish meat at 0-2°C is mixed with crab meat, and 95g of sand Silkworm, 33g grouper scraps, then add 19g Mexican DSM vitamin and mineral mixture, 9g vitamin C, 0.005mg 2,6-di-tert-butyl-4-methylphenol and mix well, then add 63g American SuperCult ® xerogel, fully bond the materials in the bonding machine to obtain the parent nutrition-enhanced bait that improves the quality of octopus fertilized eggs and seedlings; the preparation method of the parent nutrition-enhanced bait is simple, comprehensive and rich in nutrition. -4-Methylphenol can prevent the bait from oxidative deterioration; the main components of nutrition-enhanced bait also contain a large amount of unsaturated fatty acids such as DHA and EPA, which are the key factors affecting the quality of ...

Embodiment 2

[0017] A parent nutrition-enhanced bait formula for improving the quality of fertilized eggs and seedlings of octopus. The composition and weight parts of the nutrient-enhanced bait are as follows: each kilogram of bait contains 480g of fresh Pacific squid, 105g of clamworm, 280g of fresh swimming crab meat, and 31g of grouper leftovers, 72g of American SuperCult® dry gel, 21g of Mexican DSM vitamin and mineral mixture, 11g of vitamin C, 0.006mg of 2,6-di-tert-butyl-4-methylphenol; Nutrients such as proteins, amino acids, small peptides, unsaturated fatty acids and other nutrients necessary for the growth and development of the parent octopus, and the addition of clam worms can attract food and enhance immunity. Strengthening the bait can also stimulate the secretion of hormones by the parent octopus and enhance Reproductive performance, at the same time, the bait contains sufficient DHA, EPA and other unsaturated fatty acids, which is beneficial to the development of fertilize...

Embodiment 3

[0020] A parent nutrition strengthening method to improve the quality of octopus fertilized eggs and seedlings. The same amount of healthy, uniform and vigorous male and female octopuses is selected and placed in an indoor spawning pond for temporary cultivation. Before temporary cultivation, the spawning pond is pre-sterilized by ultraviolet rays. The water in the spawning pond is filtered with a 5μm screen, the water temperature is controlled at 24°C, the salinity is 30‰, the light is shaded and inflated, the whole water is changed 3 times a day, PVC pipes are used as egg collectors and shelters, and feeding is done twice a day. The daily feeding amount is 5.5% of the body weight of the octopus until the end of spawning; after spawning, the eggs are taken to the hatching tank, the temperature of the hatching tank is 25.5°C, the salt content is 38‰, the pH is 8.2, and the dissolved oxygen concentration is 7.0g / L: Nutritional enhancement of the parent body before spawning, cou...

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Abstract

The invention discloses a parental nutrition strengthening method for improving quality of fertilized eggs and fingerlings of octopus vulgaris and an artificial bait formula. Nutrition-enhanced bait comprises fresh Japanese flying squid, sandworm, fresh swimming crab meat, grouper scrap, American SuperCult dry gel, Mexican DSM vitamin and mineral mixture, and vitamin C. Octopus vulgaris parents are fed with the nutrition-enhanced bait, and the strengthening process lasts until the end of spawning. The parental nutrition strengthening method has the advantages that the nutrition-enhanced bait contains nutrients necessary for the growth and development of octopus vulgaris of various sources, and the addition of the silkworm and the like has functions of food calling and immunity enhancing, and the enhanced bait can also stimulate the octopus vulgaris to secrete hormones and enhance reproduction performance, at the same time sufficient unsaturated fatty acid in the bait is beneficial to the development of the fertilized eggs and hatched embryos and improves the quality of the fertilized eggs and the quality of the fingerlings, and the bait is an efficient and safe parental nutrition-enhanced artificial bait which improves the quality of the fertilized eggs and the fingerlings of octopus vulgaris.

Description

technical field [0001] The invention relates to the field of nutritional strengthening of octopus parent bodies, in particular to a method for nutritional strengthening of octopus parent bodies and an artificial bait formula for improving the quality of fertilized eggs and seedlings of octopus octopus. technical background [0002] True octopus (scientific name: Octopus vulgaris ), large and medium-sized cephalopods, the mantle can reach 18 cm, and the weight can reach more than 2.5 kg. The body is muscular and oval. The surface of the mantle is covered with elongated protrusions, making the surface look like a net, and there are several larger protrusions arranged in a diamond shape on the back. No false eye point, 4 small protrusions on the eyes, the length of each arm is about the same, about 2.5-3 times the length of the mantle, each arm has double rows of suction cups, each arm is connected by a superficial membrane, and the deepest membrane is the longest 25% of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K50/80A23K10/22A23K10/20A23K10/26A23K20/174A23K20/20A23K20/111
CPCA01K61/00A23K10/20A23K10/22A23K10/26A23K20/111A23K20/174A23K20/20A23K50/80Y02A40/81
Inventor 刘立芹张瑶刘炳舰龚理吕振明
Owner ZHEJIANG OCEAN UNIV
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