Feed additive for preventing and treating white feces of prawns and prawn premix feed applying feed additive

A feed additive, shrimp technology, applied in the application, animal feed, additional food elements, etc., can solve the problems of stealing death, economic loss of farmers, etc., and achieve the effects of simple preparation, improved shrimp intestinal health, and convenient use.

Inactive Publication Date: 2021-03-30
广州飞禧特生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the phenomenon of white stool occurs in prawns, if it is not treated in time, it will soon evolve into jejunum and empty stomach, and even worsen into a large area of ​​stealing, causing huge economic losses to farmers

Method used

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  • Feed additive for preventing and treating white feces of prawns and prawn premix feed applying feed additive
  • Feed additive for preventing and treating white feces of prawns and prawn premix feed applying feed additive
  • Feed additive for preventing and treating white feces of prawns and prawn premix feed applying feed additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] According to the composition mass ratio of the formula components recorded in Table 1, prepare the materials, utilize the V-shaped mixer to mix the materials forming the formula evenly, prepare the feed additive of this embodiment, add the feed additive made according to the amount of 1.5kg / ton Among the commercially available prawn feed, the prawn feed was purchased from Zhanjiang Hengxing Special Feed Effective Company. In June 2019, a feeding and growth test was carried out in a prawn breeding pond on Donghai Island, Zhanjiang, and the feeding test lasted for 3 months. In this embodiment, 4 groups are set, which are respectively marked as the control test group, the test group A, the test group B and the test group C, and each test group is provided with 2 repetitions, and each pond is a repetition. During the test period, feed the Litopenaeus vannamei of the test group A once a day with the prawn feed added with the feed additive A, and feed the Litopenaeus vannamei...

Embodiment 2

[0026] In September 2019, symptoms of white stools appeared in a Litopenaeus vannamei culture pond in Daao Town, Xinhui, Guangdong. In this example, a culture test was carried out in the above-mentioned Litopenaeus vannamei pond, and the pond originally used to feed the above-mentioned Litopenaeus vannamei was used The prawn feed of Litopenaeus vannamei is used as the feed base and used in conjunction with the feed additives formulated below. Prepare materials according to the composition mass ratio of the formula components recorded in Table 3, use a V-shaped mixer to mix the materials forming the formula evenly, prepare the feed additive of this embodiment, and add the prepared feed additive to the above-mentioned formula in an amount of 5kg / ton in the feed base. In this embodiment, 4 groups are set, which are respectively marked as the control test group, the test group A, the test group B and the test group C, and each test group is provided with 2 repetitions, and each po...

Embodiment 3

[0034]According to the mass ratio of tannic acid: ursolic acid: glyceryl butyrate: cinnamaldehyde: malic acid: ethoxyquinoline=5:3:8:2:1:1, weigh tannic acid and ursolic acid , glyceryl butyrate, cinnamaldehyde, malic acid and ethoxyquinoline, utilize the V-shaped mixer to mix the materials forming the formula evenly, and prepare the feed additive of the present embodiment. Litopenaeus vannamei culture experiments were carried out in Rudong of Jiangsu, Zhangpu of Fujian, Taishan of Guangdong and Fangchenggang of Guangxi by using the feed additive prepared in this example. A control group and a test group were respectively set up in each test site, and the control group was fed with common commercially available prawn feed to feed Litopenaeus vannamei, and the above-mentioned common commercially available prawn feed was added with the preparation of this example according to the addition amount of 2%. Feed additives were used to feed the experimental group of Litopenaeus vannam...

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Abstract

The invention provides a feed additive for preventing and treating white feces of prawns, wherein the feed additive comprises the raw materials: tannic acid, ursolic acid and butyrin, and the mass ratio of tannic acid to ursolic acid to butyrin is calculated to be (2-4):(1-2):(2-4). The feed additive for preventing and treating white feces of prawns provided by the invention can improve the intestinal health of the prawns by improving the antioxidant capacity of prawn body tissues, effectively prevent the symptoms of white feces of litopenaeus vannamei, or effectively relieve the symptoms of white feces when white feces occurs, and reduce the probability of jejunum empty stomach and mortality of the prawns.

Description

technical field [0001] The invention belongs to the field of aquaculture feed, and in particular relates to a feed additive for preventing and treating white feces of prawns and a premixed feed for prawns using the same. Background technique [0002] Litopenaeus vannamei, also known as Penaeus vannamei, is a warm-water prawn native to the Pacific coast of Central and South America. The shrimp has the characteristics of fast growth and strong disease resistance. After being introduced into my country in 1988, it has been widely cultivated. At present, it has accounted for more than 70% of the total output of shrimp culture in my country. In the culture process of Litopenaeus vannamei, the problem of "white stool" has become more and more serious in recent years. "White feces" is not the real feces of prawns in the accurate sense. The white stool of prawns is actually the microvilli on the hepatopancreas and the proliferating fibroblasts shed, and then aggregated into a worm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K20/158A23K20/116A23K20/105A23K20/132A23K20/111
CPCA23K50/80A23K20/158A23K20/116A23K20/105A23K20/132A23K20/111
Inventor 刘兴旺许丹黄燕华徐田田李国立陈桂琼
Owner 广州飞禧特生物科技有限公司
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