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Additive for aquatic feed

An aquatic feed and additive technology, applied in the field of aquatic feed and aquatic feed additives, can solve the problems of the occurrence of aquatic animal diseases and the difficulty in controlling the fatality rate, the influence on the growth and reproduction of aquatic animals, and the increase in the incidence of diseases, so as to prevent and treat bacteria. Sexual diseases, reduction of visceral damage in fish, improvement of survival and plumpness

Active Publication Date: 2015-11-11
GUANGZHOU MERITECH BIO ENG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the continuous increase of breeding density and pollution of the breeding environment, the incidence of various fish diseases has risen sharply, especially the prohibition of antibiotic products has brought new challenges to the aquaculture industry. If antibiotics are not used, It is difficult to control the disease occurrence and fatality rate of aquatic animals. At the same time, the feed conversion rate is low, and the growth and reproduction of aquatic animals will be greatly affected.

Method used

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  • Additive for aquatic feed
  • Additive for aquatic feed
  • Additive for aquatic feed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0019] The formulations of aquatic feed additives provided in Examples 1-6 are shown in Table 1.

[0020] Table 1 Formula table of aquatic feed additives

[0021]

[0022]

[0023] The preparation method is as follows: pre-mixing propyl gallate, diatomite and white carbon black, then spraying plant essential oil into it and mixing evenly, and finally mixing evenly with corncob powder to obtain the finished product.

[0024] 1) Antibacterial test:

[0025] Pick an appropriate amount of bacterial stock solution and inoculate it in LB liquid medium, incubate at 28°C for 18 hours, use the inoculated ring to dip the bacterial solution and streak it on the agar plate for 24 hours, pick a single colony and inoculate it in LB medium for 18 hours. After taking it out, measure A with a microplate reader 600 Determine the concentration of the bacterial solution and dilute it with LB medium until the final concentration of the bacterial solution is 10 6 CFU / mL. Take 1ml of the d...

Embodiment 7

[0037] In order to verify the application effect of the present invention, a test is carried out on channel catfish. Channel catfish were divided into control group: feed without antibiotics and additives, and test group: feed additive 0.04% of Example 1. The diet formula is shown in Table 5. There were 8 repetitions in each group, 30 fish in each group, and they were fed 3 times a day. Determine the weight gain rate (%), feed factor, protein efficiency, fatness, visceral weight to body weight ratio, hepatopancreas weight to body weight ratio. The results are shown in Table 6 and Table 7.

[0038] It can be seen from the results in Table 6 that the body weight gain, specific growth rate, feed coefficient and protein efficiency of the test group were significantly improved compared with the control group. The quality of the feed will not only affect the growth rate of the fish body, but also affect the body shape of the fish body. The body shape of the fish body should not b...

Embodiment 8

[0049] In order to further verify the application effect of the present invention, the feed additive of embodiment 1 is tested on catfish. Catfish were divided into control group 1: feed without additives; control group 2: feed with enrofloxacin 10 ppm; test group: feed with 0.02% and 0.05% additives. The diet formula is shown in Table 9. 10 repetitions in each group; 10 fish tails in each group were fed twice a day to measure weight gain (every month, three times in total), feed intake / feed compensation (every month, in total three times), immune performance measurement / Bacteriological determination of survival / mortality.

[0050] As can be seen from the results in Table 10, the addition of this feed additive can improve production performance compared with the control (without antibiotics), and the effect is better than that of the control group 2 (adding antibiotics). From the results of multi-enteric bacteria in each group in Table 11, it can be seen that the addition g...

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Abstract

The invention discloses an additive for aquatic feed. The additive comprises 3-10 parts of one or more plant essential oils, 1-5 parts of propylgallate, 10-30 parts of diatomite, 5-20 parts of white carbon black and 20-40 parts of corncob powder, wherein the plant essential oils comprise oregano essential oil, nutmeg essential oil, agastache essential oil, sage essential oil, mint essential oil and thyme essential oil. The additive has the very strong capability to resist common aquatic bacteria, can relieve the damage to fish organs caused by bacterial infection, and can further improve the feed conversion rate for aquatic animals and facilitate the growth properties of the aquatic animals; moreover, the additive has the advantages that the stability is high, the environment is protected from pollution, and no drug resistance is generated.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to an aquatic feed additive, and also relates to an aquatic feed. technical background [0002] Aquaculture has developed rapidly at a rate of more than 30% worldwide, becoming one of the fastest growing sectors in the agricultural sector, but frequent disease outbreaks seriously restrict its rapid development. In recent years, with the continuous increase of breeding density and pollution of the breeding environment, the incidence of various fish diseases has risen sharply, especially the prohibition of antibiotic products has brought new challenges to the aquaculture industry. If antibiotics are not used, It is difficult to control the disease occurrence and fatality rate of aquatic animals. At the same time, the feed conversion rate is low, and the growth and reproduction of aquatic animals will be greatly affected. Therefore, there is an urgent need for a non-antibiotic f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K1/14A23K1/16
CPCY02A40/818Y02P60/87
Inventor 金立志王若瑾袁保京郑宗林
Owner GUANGZHOU MERITECH BIO ENG TECH
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