Micropterus salmoides juvenile puffed feed capable of increasing standard fry survival rate and preparation method thereof

A technology of extruded feed and survival rate, which is applied in the field of California perch juvenile extruded feed and its preparation to improve the survival rate of standard seedlings, and can solve the problems of insufficient ability to resist virus and bacterial invasion, susceptibility to various diseases, loss of nutrients, etc. , to achieve the effect of improving the effect of attracting food, improving the feeding of fish, and increasing the rate of domestication

Pending Publication Date: 2019-10-25
佛山市顺德区旺海饲料实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional feed that the market is used for California perch seedlings mainly contains the following problems: the first, the food-attractive problem of feed, after the California water flower utilizes the yolk sac, the rotifers and water spiders (cladocera and copepods in the water body) that begin to feed on the water body After 4 days (body length ≥ 1cm specification), domestication begins. If the feed attractant at this stage is not good, California will stop eating and cause death by closing the mouth; second, the viscosity of the feed particle

Method used

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  • Micropterus salmoides juvenile puffed feed capable of increasing standard fry survival rate and preparation method thereof
  • Micropterus salmoides juvenile puffed feed capable of increasing standard fry survival rate and preparation method thereof
  • Micropterus salmoides juvenile puffed feed capable of increasing standard fry survival rate and preparation method thereof

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preparation example Construction

[0047] A preparation method for California perch juvenile puffed feed that improves the survival rate of standard seedlings, wherein the fish oil is a liquid raw material, and the rest of the raw materials are solid; comprising the following steps:

[0048] Step 1, California perch vitamin premix, California perch minerals and other premixes, Chinese herbal medicine immune preparation mixture, living fly maggot antimicrobial peptide puree preparation mixture are first prepared as required;

[0049] Step 2, according to the requirements of formula design, transfer the weight of the above-mentioned different solid raw materials into the batching bin, and take each raw material by mass ratio;

[0050] Step 3, after mixing all the solid raw materials evenly, after passing through the ultrafine pulverizer, the mixture can pass through a 200-320 μm sieve;

[0051] Step 4, extruding, puffing and granulating the raw materials obtained in Step 3 through a twin-screw extruder;

[0052]...

Embodiment 1

[0063] An extruded feed for juvenile California perch that improves the survival rate of standard seedlings, calculated as air-dried matter: 45 parts of Japanese-grade fish meal, 7 parts of fermented soybean meal, 22.2 parts of high-gluten flour, 2.8 parts of fish oil, 4 parts of seaweed element, and 2 parts of fish soluble pulp , 10 parts of krill powder, 2 parts of California perch vitamin premix, 3 parts of California perch mineral and other premixes, 1 part of Chinese herbal immune preparation mixture, 1 part of live fly maggot antimicrobial peptide puree preparation.

[0064] After the above raw materials are pulverized, they are mixed according to the above proportions, and after superfine pulverization, they can be prepared by a twin-screw extruder. The crude protein content of the compound feed in this embodiment is 52.31%, and the crude fat content is 7.02%.

[0065]

[0066]

[0067] A 30-day comparative experiment was carried out in an indoor flowing water cul...

Embodiment 2

[0070] The California perch juvenile puffed feed of the present invention, which improves the survival rate of standard seedlings, was tested in a large pond of a farm. The water surface of the farm in Shatou Village, Nanhai District, Foshan City was 6.5 mu, and a warm shed was set up, with a water depth of 1 to 1.5 meters. February 13, 2019 Daily release of 1,000,000 California sea bass flowers, according to the feeding strategy shown in Table 1, will end on March 26, 2019. The breeding cycle is 41 days, and the size is 320 fish / catties. The results show that using the extruded feed for standard seedlings, The final survival rate reached 23.6%, and the breeding process was smooth. At this time, the average survival rate of seedlings raised by other brands of feed on the market was only 10%.

[0071]

[0072] The following table: Recommended main bait for standard seedlings in California perch pond

[0073]

[0074]

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Abstract

The invention relates to micropterus salmoides juvenile puffed feed capable of increasing standard fry survival rate and a preparation method thereof. The feed comprises, by weight, 35-45 parts of Japanese-grade fish meal, 3-12 parts of fermented bean meal, 20-25 parts of high-gluten flour, 2-5 parts of fish oil, 2-7 parts of algin, 1-3 parts of fish dissolved pulp, 5-15 parts of krill powder, 2 parts of micropterus salmoides vitamin premix, 3 parts of micropterus salmoides mineral and other premix, 1-2 parts of Chinese herbal medicine immune preparation mixture and 1 part of live maggot antibacterial peptide magma preparation. The Chinese herbal medicine immune preparation mixture is added into the feed, and flavone and glycoside thereof, organic acid, flavane and polymer thereof contained in hawthorn in the Chinese herbal medicine immune preparation mixture can play an important role in improving food intake of fishes and promoting appetite; herba andrographitis, radix isatidis, cortex eucommiae and herba lysimachiae have antivirus effect, so that the feed has better effect.

Description

technical field [0001] The invention relates to a California perch feed, in particular to a California perch juvenile puffed feed which improves the survival rate of standard seedlings and a preparation method thereof. Background technique [0002] The scientific name of the California perch is largemouth bass, which belongs to the order Perciformes, the family Sunfish, and the genus Black Perch. Largemouth bass are divided into two subspecies based on geographic distribution and morphological aspects of their native range: one is the northern subspecies and the other is the Florida subspecies. The California perch cultivated in my country is mainly the northern subspecies of largemouth bass. It is welcomed by the market because of its delicious meat, strong disease resistance, rapid growth and easy catch. From 2016 to 2018, due to the breakthrough in whole-process feed breeding, the breeding area of ​​California sea bass increased nationwide, and the level of breeding tec...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K10/22A23K10/37A23K10/30A23K20/158A23K20/174A23K20/147A23K20/28A23K20/20A23K20/142A23K20/10A23K20/132A23K10/20A23K40/10A23K40/30
CPCA23K50/80A23K10/22A23K10/37A23K10/30A23K20/158A23K20/174A23K20/147A23K20/28A23K20/30A23K20/142A23K20/10A23K20/132A23K10/20A23K40/10A23K40/30Y02A40/818Y02P60/87
Inventor 黄志东
Owner 佛山市顺德区旺海饲料实业有限公司
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