Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Nutrition-enriched forage for parents fish of rockfish, and its pren. method

A nutrition-enhancing, grouper technology, applied in animal feed, animal feed, climate change adaptation, etc., can solve the problems of low reproductive performance of broodstock, low survival rate of newly hatched fry, poor quality of fertilized eggs, etc., and achieve the solution of palatable bait Improvement of sex, quality of fertilized eggs and larvae, and the effect of removing excessive free radicals

Inactive Publication Date: 2005-01-05
SUN YAT SEN UNIV
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the general carnivorous broodstock in seawater do not eat artificial feed, so the broodstock breeding is to directly feed fresh trash fish or squid, but if only fresh trash fish is used for feeding, the reproductive performance of the broodstock is low, and it is easy to cause diseases, and the quality of fertilized eggs Very poor, very low survival rate of newly hatched fry

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: Weighing V according to the proportion E 180g, V C 360g, α-starch 900g, fish meal 7200g, put various nutrients in a blender and mix well, then add 900g of fish oil, then add 3L of water and stir to form a ball, and store it at -20°C. When feeding, press 2% of the total weight of the broodstock weighs 1000g of medlar with an average weight of about 20g, cuts the abdominal cavity of the medlar, and inserts about 2g of a group-shaped nutritional enhancer into the abdominal cavity of each medlin. After 60 days of nutritional fortification, the broodstock The diameter of fertilized eggs, the diameter of oil globules, the length of larvae, the volume of yolk sac, and the survival rate of larvae during the nutrient transformation period were far better than those of the control group fed only fresh miscellaneous fish (see Table 1). reproductive performance requirements.

Embodiment 2

[0017] Embodiment two: Weigh egg lecithin 900g in proportion, V E 90g, V C 180g, α-starch 450g, fish meal 1800g, put various nutrients in a blender and mix well, then add 450g fish oil, then add 1.5L water and stir to form a ball, and store it at -20°C. When feeding, Weigh 500g of medlin with an average weight of about 20g according to 1% of the total weight of the broodstock, cut open the abdominal cavity of the medlin, stuff about 2.5g of a group-shaped nutritional enhancer into the abdominal cavity of each medlin, and go through 60 days of nutritional fortification , the diameter of the fertilized eggs, the diameter of the oil globule, the body length of the larvae, the volume of the yolk sac, and the survival rate of the larvae during the nutritional transformation period of the parent fish are far better than those of the control group (see Table 1) that only feed fresh miscellaneous fish. Fish broodstock reproductive performance requirements.

Embodiment 3

[0018] Embodiment three: weigh astaxanthin 2.7g in proportion, V E 540g, V C 135g, α-starch 2700g, fish meal 5400g, put various nutrients in a blender and mix well, then add 1350g fish oil, then add 3L water and stir to form a ball, and store it at -20°C. When feeding, press 3% of the total weight of the parent fish weighs about 20g of medlar 2250g, cuts the abdominal cavity of the medlin, and stuffs about 2g of a group-shaped nutritional enhancer into the abdominal cavity of each medlin. After 60 days of nutritional fortification, the broodstock fertilized eggs Egg diameter, oil globule diameter, body length of larvae, yolk sac volume, and survival rate of larvae during nutritional transformation were far better than those of the control group fed only fresh miscellaneous fish (see Table 1), achieving enhanced reproductive performance of grouper broodstock requirements.

[0019]

[0020] Note: Different letters in the superscript indicate significant difference ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A nutritive-enriched feed for the parent rockfish is prepared from fresh small fish and / or squid, and nutrients including fish oil, VE, VC lecithin, fish powder, alpha-starch or dextrin, egg lecithin and astaxanthin through proportionally mixing said nutrients with water, and inserting the mixture in the cavity of small fish or squid.

Description

technical field [0001] The invention relates to a nutrient-enhanced feed for grouper broodstock breeding period and a preparation method thereof. Background technique [0002] Grouper is a kind of rare and precious seawater cultured economic fish. In Southeast Asian countries, Japan, my country Taiwan and the coast of South China, the scale of grouper farming is increasing, and the demand for grouper fry is also increasing. However, natural fry It is far from meeting the needs of the aquaculture industry, and the survival rate is extremely low, and the nutrition of broodstock directly affects the quality of fertilized eggs and larvae, so the nutrition of broodstock is very important. [0003] However, there are very few researches on broodstock nutrition, especially marine fish broodstock nutrition. Because the general carnivorous broodstock in seawater do not eat artificial feed, so the broodstock breeding is to directly feed fresh trash fish or squid, but if only fresh tra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A23K10/22A23K20/10A23K20/158A23K20/163A23K20/174A23K50/80
CPCY02A40/818
Inventor 刘永坚田丽霞肖伟平
Owner SUN YAT SEN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com