Microecological preparation used in prawn feeds and application thereof

A technology of micro-ecological preparations and prawn feed, which is applied in the fields of application, animal feed, animal feed, etc., can solve the problems of reduced immunity of farmed animals, enhanced drug resistance of pathogens, etc., and achieve the goal of enhancing immunity, inhibiting pathogenic bacteria, and promoting growth Effect

Inactive Publication Date: 2015-03-04
QINGDAO GENYUAN BIOLOGICAL TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Long-term use of antibiotics leads to enhanced drug resistance of pathogenic bacteria and reduc

Method used

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  • Microecological preparation used in prawn feeds and application thereof
  • Microecological preparation used in prawn feeds and application thereof
  • Microecological preparation used in prawn feeds and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation of embodiment 1 probiotics feed

[0020] The probiotics described in this embodiment for the prawn feed include: Bacillus subtilis 4 × 10 9 CFU / g, Bacillus licheniformis 1×10 9 CFU / g, honeysuckle extract (10:1), astragalus polysaccharide (60%).

[0021] The application of the microecological preparation of the present invention in the preparation of prawn feed: the added amount of the probiotic is 1‰ of the total weight of the feed. The detection of Bacillus subtilis after feed pelleting was 2.4×10 8 CFU / g, Bacillus licheniformis 3.8×10 7 CFU / g, extract content not detected.

Embodiment 2

[0022] Embodiment 2, microecological preparation feed prawn application test

[0023] The volume of the experimental aquarium was 60L, and it was continuously inflated during the breeding period. The experiment was divided into two groups, the control group (basic feed) and the test group (probiotic feed), with 5 repetitions in each group. Five vannamei shrimp were cultured in each aquarium. Before the test, 50 healthy Penaeus vannamei with similar body weight and body length were selected, with an average weight of (8.6±0.1) g, and were randomly divided into 10 aquariums. The test started after 1 week of domestication, and the feeding cycle was 40 days. Weighing after the test; blood collection to measure serum superoxide dismutase (SOD), alkaline phosphatase (AKP), acid phosphatase (ACP) activities; intestinal samples were taken to determine protease and amylase; kits were purchased from Nanjing Jiancheng Institute of Bioengineering.

[0024] Table 1 Relative weight gain ...

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Abstract

The invention provides a microecological preparation used in prawn feeds and an application thereof. The microecological preparation comprises the following ingredients: bacillus subtilis powder, bacillus licheniformis powder, a honeysuckle flower extract (10 to 1) and astragalus polysaccharides (60%) in the mass ratio of 5 to 3 to 1 to 1. By adding the microecological preparation to the prawn feeds, the growth and the anti-stress capacities of prawns can be improved, the immune functions can be enhanced and the survival rates of the prawns can be increased.

Description

technical field [0001] The invention belongs to the technical field of prawn feed, and in particular relates to a microecological preparation for prawn feed and an application thereof. Background technique [0002] With the expansion of prawn nursery and culture, disease has become a key factor restricting the healthy development of aquaculture. Long-term use of antibiotics leads to enhanced drug resistance of pathogenic bacteria and reduced immunity of farmed animals. Finding alternatives to antibiotics is the current research focus. [0003] Probiotics have the functions of maintaining the balance of intestinal flora, enhancing the body's immunity and disease resistance; traditional Chinese medicine contains a variety of active ingredients, which have the characteristics of antibacterial, antiviral, and no residue. There is a certain synergy between probiotics and traditional Chinese medicines. Probiotics can promote the absorption and utilization of traditional Chinese ...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/00A23K1/16A23K1/14
Inventor 王娇梁晶晶谢金萍
Owner QINGDAO GENYUAN BIOLOGICAL TECH GRP
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