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Fermentation of duck and goose feces for producing high protein feed

A technology of manure and goose manure, which is applied in the field of fermentation engineering and feed production, and can solve the problems of no treatment of duck and goose manure, no fermentation of duck and goose manure to prepare feed, etc.

Inactive Publication Date: 2011-11-16
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many reports about the separate fermentation of duck and goose manure and the separate fermentation and drying of distiller's dung to make feed, but there is no record of mixing duck and goose manure with distiller's grains to prepare feed. In addition, there is no use of medium-strong acid to treat duck and goose manure. to report

Method used

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  • Fermentation of duck and goose feces for producing high protein feed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The acquisition of embodiment 1 duck and goose excrement

[0021] Duck and goose feces are used in a large amount, which generally come from medium and large poultry farms, but can also be collected from small farms or retail investors. Generally, it is used fresh. When the temperature is lower than 10°C, it can be stored for one day. When the temperature is above 10°C, it can be used on the same day.

[0022] Distiller's grains are generally obtained directly from various nearby distilleries and used fresh. Rice distiller's grains, beer's grains, white distiller's grains, fruit distiller's grains, etc. can be used. Among them, the nutritional value of yellow distiller's grains is higher, and the nutritional value of beer's grains is lower.

Embodiment 2

[0023] The pretreatment of embodiment two duck and goose excrement

[0024] For fresh duck and goose feces, add 0.5-5% of the total volume of sulfuric acid, phosphoric acid and other medium-strong acids, and treat for more than 30 minutes. If the acidity is low, you can also treat overnight. Use sodium hydroxide, ammonia, etc. to adjust to pH5.5 ~7.5, this method aims to fix nitrogen, increase the concentration of protein produced in the next step of fermentation, and at the same time, kill salmonella, Escherichia coli, eggs, viruses and other threats, and reduce the risk of outbreaks of bird flu.

Embodiment 3

[0025] Example 3 Fermentation of duck manure mixed with distiller's grains to prepare feed

[0026] Collect fresh duck manure from stocking without dehydration or dehydration. After the acid-base treatment according to Example 2, mix it with distiller's grains in a ratio of 1:1 to 9:1. higher. Ammonium sulfate or diammonium hydrogen phosphate 0.5-2% (g / 100g) is added to the mixture as a supplementary nitrogen source. Urea is avoided or reduced due to the production of metabolic by-products that are not conducive to animals in this anaerobic mixed fermentation. Other auxiliary materials Add some appropriately to keep the moisture content at 40-60%. After mixing completely, adjust the pH to 5.5-7.5. Add multi-species and multi-enzyme composite fermentation products such as Gymboree II fermentation aids, and start fermentation at room temperature. After 36 hours, the activity of microorganisms will increase the temperature of the product to above 25°C (the scale of anaerobic ferme...

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Abstract

The invention relates to a technology by fermentation of duck and goose feces for producing high protein feed. The technology comprises the steps of: pretreating duck and goose feces, including forced-fed duck and goose feces with sulfuric acid, phosphoric acid, etc. for sterilization and azotification, mixing the duck and goose feces with various vinasse in different degrees on the basis of feces characteristics, controlling the water content, the adding amount of an inorganic nitrogen source, the initial pH and the like, and infusing an assistant starter commodity or other microbiological cultures for anaerobic fermentation at room temperature for 4-7 days, thus obtaining the novel feed. With high content of crude protein and protein, abundant methionine, lysine and other essential amino acids, no diseases and insect pests such as salmonella and escherichia coli, the feed obtained meets the national feed standards. Also characterized by good palatability, easy digestion, the feed of the invention can substantially reduce the cost in feeding. In addition, the technology provided in the invention is easy to be scaled up for implementation, and is suitable for supporting various culturing farms to construct feed processing workshops so as to improve the industrial chain. Therefore, while controlling the fecal pollution, extra gains can also be obtained.

Description

technical field [0001] The invention relates to a feed production technology, which belongs to the field of biotechnology manufacturing of feed, and belongs to the fields of fermentation engineering, environmental pollution protection and the like. Background technique [0002] my country's aquaculture industry spreads all over the country. Hundreds of millions of tons of poultry and livestock manure come down from major farms every year. In addition to industrial pollution, aquaculture manure pollution has become the second largest pollution in my country. what to do? Only according to compost, only 50-80 yuan / ton, the price is too low, not very attractive to large farms, generally used as compost, if the transportation is not handled properly, it will emit foul smell, attract fruit flies and reduce the production of flowers and fruits [Pinero J, 2003] etc., causing great pollution to the suburban and rural environment. This phenomenon has attracted the attention of man...

Claims

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Application Information

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IPC IPC(8): A23K1/00A23K10/12
Inventor 袁辉黄文岳
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY