Application of clostridium ethanol proteins to low-starch expanded floating feed for carnivorous fishes

A Clostridium ethanol and low-starch technology, applied in applications, animal feed, animal feed, etc., can solve the problems of poor stability of low-starch feed, lack of raw materials for aquatic feed, and unstable production, so as to increase the economic benefits of breeding and improve maintenance Integrity and good product quality

Inactive Publication Date: 2020-01-14
FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The second is to solve the problems of poor stability of low-starch feed in water, low expansion rate, easy sedimentation, and unstable production.
At present, except for a small amount of literature research, it has not been actually used as a raw material for aquafeeds.

Method used

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  • Application of clostridium ethanol proteins to low-starch expanded floating feed for carnivorous fishes
  • Application of clostridium ethanol proteins to low-starch expanded floating feed for carnivorous fishes
  • Application of clostridium ethanol proteins to low-starch expanded floating feed for carnivorous fishes

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Embodiment 1 Formula, preparation and experimental verification of low-starch puffed floating feed for carnivorous fish

[0071] 1. The purpose of the experiment: To verify the effect of Clostridium ethanol protein replacing fish meal on the quality of carnivorous fish low-starch puffed floating feed product, as well as the impact on production stability

[0072] 2. Experimental materials - formula and preparation of low-starch puffed floating feed for carnivorous fish

[0073] 1. Low-starch extruded floating feed formula for carnivorous fish, including two parts:

[0074] 1) Basic nutritional formula (percentage by weight): cottonseed protein (containing 61.51% crude protein, 2.36% crude fat) 14.8%, soybean protein concentrate (containing 64% crude protein, 0.25% crude fat) 16.3%, wheat flour 6%, Tapioca flour 5%, gluten 6%, 6 soybean oil 8.9-11.1%, cellulose 1-3.1%, calcium dihydrogen phosphate 1-1.8%, vitamin and mineral premix 1.4%.

[0075] 2) Two kinds of protei...

Embodiment 2

[0149] Example 2 Carnivorous fish low-starch puffed floating feed largemouth bass breeding test

[0150] 1. Purpose of the experiment

[0151] To verify the effect of replacing fish meal with ethanol Clostridium protein on the growth performance and liver tissue of carnivorous fish represented by largemouth bass.

[0152] 2. Experimental method

[0153] 1. Experimental feed

[0154] Use the feedstuff in embodiment 1 to carry out breeding test.

[0155] 2. Implementation location

[0156] It was carried out in the indoor recirculating aquaculture system of the National Aquafeed Safety Evaluation Base (Beijing, Nankou).

[0157] 3. Test aquatic target animals

[0158] Largemouth bass were purchased from the Fine Breed Farm in Foshan, Guangdong.

[0159] Randomly select healthy and uniform largemouth bass (average body weight 47.99±0.01g), and allocate them to a volume of 0.26m 3 in conical breeding tanks.

[0160] In this experiment, 5 treatment groups were designed, wit...

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Abstract

The invention relates to low-starch (starch level being less than 10 percent) expanded floating feed for carnivorous fishes. A part of protein raw materials of the feed uses novel microbial proteins,namely clostridium ethanol proteins, and the clostridium ethanol proteins are suitable for the carnivorous fishes which are intolerant to the starch. A contrast experiment proves that the feed disclosed by the invention can greatly reduce the consumption of fish meal, can meet requirements of nutrients required by growth and development of the carnivorous fishes, also can obviously reduce volume weight of the feed, and also can improve radial expansion rate, grain hardness, gelatinization degree and in-water stability of the low-starch feed; and moreover, through improving an inside hole diameter structure of granules, the oil absorption rate is improved, and the oil leakage rate is reduced. By adopting the low-starch expanded floating feed disclosed by the invention, the stable processingquality of the low-starch expanded floating feed is also obviously improved.

Description

technical field [0001] The invention belongs to the technical field of agricultural aquaculture, and relates to the application of a novel microbial protein raw material - clostridium ethanol protein in the production and cultivation of low-starch puffed floating feed for carnivorous fish. Background technique [0002] "Low starch floating feed" (that is, the definition of feed with a starch content of less than 10% in the aquatic feed industry) is suitable for fish with carnivorous upper water habits. Because fish, especially carnivorous fish, have low ability to utilize sugar, especially starch. When the amount of starch added in the feed exceeds the tolerance level, it will lead to excessive accumulation of liver glycogen and fat, glucose and fat metabolism disorder, resulting in chronic inflammation, cell apoptosis, and eventually liver damage. [0003] Carnivorous fish, such as largemouth bass (Micropterus salmoides), are important freshwater aquaculture species, but t...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K10/22A23K20/147A23K10/30A23K10/37A23K20/158A23K20/26A23K20/174A23K20/163A23K20/20
CPCA23K50/80A23K10/22A23K20/147A23K10/30A23K10/37A23K20/158A23K20/26A23K20/174A23K20/163A23K20/20Y02A40/818Y02P60/87
Inventor 薛敏马世峰邹方起梁晓芳晁伟
Owner FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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