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Feed for preventing and controlling prawn hepatopancreatic necrosis syndrome

A technology of prawn feed and hepatopancreas, which is applied in animal feed, animal feed, applications, etc., can solve the problems of hepatopancreatic necrosis syndrome and other problems, achieve prevention and control of hepatopancreatic necrosis syndrome, simple and convenient preparation, and reduce arc The effect of bacterial infection

Pending Publication Date: 2021-04-06
DONGTAI SUTAI FEED
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to develop a feed for preventing and controlling the hepatopancreatic necrosis syndrome of prawns, in order to solve the technical problem that the effect of the hepatopancreas necrosis syndrome of prawns is not obvious in the prior art

Method used

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  • Feed for preventing and controlling prawn hepatopancreatic necrosis syndrome

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Experimental program
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Effect test

Embodiment

[0016] 1. The anti-vibrio additive is prepared by crushing and squeezing fresh fennel stems and leaves, onion bulbs and peppers in a weight ratio of 5:4:1, adding 15g of peptone, 0.5g of beef extract, 20g of sucrose and chloride Sodium 5g, pasteurized after mixing well. Add 10 each of Bacillus subtilis and Clostridium butyricum species to the mixed juice cooled to room temperature 8 CUF / L or more, mix evenly and fill with pure oxygen to make the dissolved oxygen reach saturation, and ferment for 96 hours under the condition of 25°C-40°C with shading and sealing.

[0017] 2. The feed for preventing and controlling prawn hepatopancreatic necrosis syndrome is prepared by spraying the fermented product filtrate evenly on the granulated feed or crushed feed that has been screened according to the addition amount of 1% to 2%, and then at 40 ° C. Tumble dry under conditions.

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Abstract

The invention discloses a feed for preventing and controlling hepatopancreatic necrosis syndrome of prawns. The feed is characterized in that a Chinese herbal medicine probiotic fermentation additive capable of resisting vibrio parahaemolyticus is sprayed on screened prawn granulated feed or crushed feed, and the additive is prepared by the following steps of: crushing fresh fennel stems and leaves, onion corms and chilies and supplementing a proper amount of nutrients, and carrying out combined fermentation by using bacillus subtilis and clostridium butyricum. The product can effectively reduce vibrio infection of prawns and achieve the purpose of preventing and controlling hepatopancreatic necrosis syndrome of prawns.

Description

technical field [0001] The invention relates to a feed for preventing and controlling prawn hepatopancreatic necrosis syndrome, which belongs to the field of aquatic feed. Background technique [0002] The hepatopancreas of prawns has both digestive and immune functions. It is the largest digestive gland and immune organ in prawns. It is differentiated from the midgut and opens at the junction of the stomach and the midgut, also known as the midgut gland. Studies have confirmed that the hepatopancreatic necrosis syndrome of shrimp is caused by the infection of Vibrio parahaemolyticus. Histopathological analysis shows that in the early stage of infection, the epithelial cells of the hepatopancreatic tubules can be seen in the microscopic section of the infection, and the living body can be seen with the naked eye. Hepatopancreas enlargement; in the late stage of infection, necrosis and hemolytic infiltration of hepatopancreas tubular cells can be seen in section microscopic o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/18
CPCA23K50/80A23K10/18
Inventor 吕富徐统书夏晓华於叶兵
Owner DONGTAI SUTAI FEED
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