Wet feed for improving reproductive performance of parent fish of little yellow croakers and feeding method

A technology of reproductive performance and feeding method, applied in the field of aquaculture, can solve the problems that the nutritional effect is not as good as that of the chilled food, the effect is not as good as that of the frozen food, and the spawning quantity is small, so as to promote the development and reproduction of the gonads, and be beneficial to digestion. The effect of absorption, easy transportation and storage

Pending Publication Date: 2021-06-22
象山港湾水产苗种有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, since the research and development of small yellow croaker feed has just started, the feed for large-scale farming mainly adopts the compound feed of a similar species, large yellow croaker. The hatching rate is low, and the effect is not as good as that of chilled bait. However, feeding with chilled bait such as ...

Method used

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  • Wet feed for improving reproductive performance of parent fish of little yellow croakers and feeding method
  • Wet feed for improving reproductive performance of parent fish of little yellow croakers and feeding method
  • Wet feed for improving reproductive performance of parent fish of little yellow croakers and feeding method

Examples

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Effect test

Embodiment 1

[0017] Example 1: Effects of different amounts of white fish meal added in the nutrition enhancer for broodstock of small yellow croaker on the growth and reproduction performance of broodstock.

[0018] Formula 1: 50 parts of white fish meal, 30 parts of yeast powder, 10 parts of lecithin powder, 1.5 parts of zymosan, 2 parts of amino acid powder, 4 parts of small peptide powder, 0.003 parts of vitamin A, 0.0006 parts of vitamin E, vitamin B 1 0.01 parts, vitamin B 2 0.01 parts, vitamin B 6 0.01 parts, vitamin D 3 0.0075 parts, folic acid 0.002 parts, niacinamide 0.0375 parts, D-pantothenic acid 0.02 parts, vitamin C 0.7 parts, inositol 0.1 parts and α-starch 1 part.

[0019] Formula 2: The amount of white fish meal added in formula 2 is 45 parts, and the others are the same as formula 1.

[0020] Formula 3: The amount of white fish meal added in formula 3 is 40 parts, and the others are the same as formula 1.

[0021] Formula 4: The amount of white fish meal added in ...

Embodiment 2

[0027] Example 2: Effects of different yeast powder additions in the nutrition enhancer for broodstock of small yellow croaker on the growth and reproduction performance of broodstock.

[0028] In the embodiment of the present invention, the following five formulas were designed respectively according to the addition amount of yeast powder for the ratio of parent fish nutrition enhancer.

[0029] Recipe 6: The components and proportions in this recipe are exactly the same as those in Recipe 1, and the amount of yeast powder used is 30 parts.

[0030] Recipe 7: The amount of yeast powder used in this recipe is 25 parts, and the others are the same as recipe 6.

[0031] Recipe 8: The amount of yeast powder used in this recipe is 20 parts, and the others are the same as recipe 6.

[0032] Recipe 9: The amount of yeast powder used in this recipe is 15 parts, and the others are the same as recipe 6.

[0033] Recipe 10: The amount of yeast powder used in this recipe is 10 parts, a...

Embodiment 3

[0038] Embodiment 3: Effects of different lecithin powder additions on the reproductive performance of broodstock

[0039] In the present embodiment, the following five formulations were respectively designed according to the different addition amounts of lecithin powder for the nutritional enhancer proportioning of broodstock:

[0040] Formula 11: The components and proportions in this formula are exactly the same as those in Formula 1, and the amount of lecithin powder used is 10 parts.

[0041] Formula 12: The amount of lecithin powder used in this formula is 8 parts, and the others are the same as formula 11.

[0042] Formula 13: The amount of lecithin powder used in this formula is 6 parts, and the others are the same as formula 11.

[0043] Formula 14: The amount of lecithin powder used in this formula is 4 parts, and the others are the same as formula 11.

[0044] Formula 15: The amount of lecithin powder used in this formula is 2 parts, and the others are the same as...

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Abstract

The invention discloses a wet feed for improving reproductive performance of parent fish of little yellow croakers and a feeding method, the wet feed mainly comprises the following components in parts by weight: 40-60 parts of yellow croaker cream, 40-90 parts of a nutrient supplement for the parent fish of the little yellow croakers and 0.1-0.3 part of fish oil, and the feeding method comprises the following steps: mixing the wet feed with the particle size of 0.3-0.4 cm and the length of 0.4-0.5 cm according to the amount of 1kg/1000 fishes; the parent fishes are fed twice a day in the morning and afternoon, so that the feed intake, the weight gain rate, the gonad index, the fertilized egg amount and the fertilization rate of the parent fishes are improved. The feed disclosed by the invention is stable in quality, meets the nutritional requirements of the parent fishes of the small yellow croakers, contributes to improving the feed intake, weight gain rate and growth performance of the parent fishes of the small yellow croakers, promotes gonad development and reproductive capacity of the parent fishes of the small yellow croakers and setting of feeding time and feeding times, conforms to the enzyme activity characteristics of digestive tract protease of the small yellow croakers, is beneficial to digestion and absorption, and meanwhile, the soft pellet feed is convenient to transport and store.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a wet feed and a feeding method for improving the reproductive performance of broodstock of small yellow croakers. Background technique [0002] The meat of small yellow croaker is rich in lysine, glutamic acid, EPA and DHA. It is famous for its delicious meat and rich nutrition. It is deeply loved by the public. It is an important marine economic fish in my country and was once one of the four major seafood in China. However, due to overfishing, the production of wild small yellow croaker has declined in recent years, and the individual miniaturization trend is serious. With the establishment of small yellow croaker artificial breeding technology in 2014, the wild population of small yellow croaker is expected to be guaranteed. But at present, the artificial breeding of small yellow croaker broodstock still lacks special nutritional feed, and the breeding and br...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K10/22A23K20/158A23K10/18A23K20/163A23K20/142A23K20/147A23K20/174A23K40/10A01K61/10
CPCA23K50/80A23K10/22A23K20/158A23K10/18A23K20/163A23K20/142A23K20/147A23K20/174A23K40/10A01K61/10Y02A40/81
Inventor 徐万土陶顺顺张煜楼宝梁骁韩明明詹炜刘峰谢庆平郭丹丹陈裕曾肖黄富林陈黎明杨辉
Owner 象山港湾水产苗种有限公司
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