Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Feed-grade urea and preparation method thereof

A technology of feed grade urea, which is applied in animal feed, animal feed, application, etc., can solve the problems of high cavern rate and large surface area of ​​expanded urea products, and achieve the effects of improving milk production of dairy cows, good taste, and increased bacterial pus

Inactive Publication Date: 2011-06-29
苑贵民
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing market, most of the chemical products - acetylhydroxamic acid are used to control the release rate of urea, expanded urea (urea + corn), the expanded urea product has a high rate of caverns and a large surface area

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Feed-grade urea and preparation method thereof
  • Feed-grade urea and preparation method thereof
  • Feed-grade urea and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Feed grade urea:

[0030] a. Get 9 parts of sodium carboxymethyl cellulose in the ratio of parts by weight, add 30 parts of water, stir and dissolve to obtain a suspension of sodium carboxymethyl cellulose;

[0031] b. Add the prepared carboxymethylcellulose suspension into the reaction kettle, add 71 parts of urea, heat until the urea dissolves, and control the temperature below 95°C;

[0032] c. Then add 19 parts of cornstarch, stir well to form a paste, after gelatinization, add 14 parts of corn flour and 15 parts of defatted rice bran, stir, and then enter the oscillating pulverizer to granulate and ventilate countercurrently to the finished product.

Embodiment 2

[0034] Feed grade urea:

[0035] a. Take 1 part of sodium carboxymethyl cellulose in the ratio of parts by weight, add 20 parts of water, stir and dissolve to obtain a suspension of sodium carboxymethyl cellulose;

[0036] b. Add the prepared carboxymethylcellulose suspension into the reaction kettle, add 62 parts of urea, heat until the urea dissolves, and control the temperature below 95°C;

[0037] c. Then add 10 parts of cornstarch, stir well to form a paste, after gelatinization, add 6 parts of corn flour and 6 parts of defatted rice bran, stir, and then enter the swing pulverizer to granulate and ventilate back to the finished product.

Embodiment 3

[0039] Feed grade urea:

[0040] a. get 5 parts of sodium carboxymethyl cellulose in the ratio of parts by weight, add 25 parts of water, stir and dissolve to obtain sodium carboxymethyl cellulose suspension;

[0041] b. Add the prepared carboxymethylcellulose suspension into the reaction kettle, add 66 parts of urea, heat until the urea dissolves, and control the temperature below 95°C;

[0042] c. Add 14 parts of cornstarch, stir well to form a paste, after gelatinization, add 10 parts of corn flour and 9 parts of defatted rice bran, stir, and then enter the oscillating pulverizer to granulate and ventilate countercurrently to the finished product.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses feed-grade urea and a preparation method thereof. Microbes in a ruminant rumen can generate urease which can decompose urea into ammonia and carbon dioxide. The rumen microbes generate bacteria proteins by using the decomposed ammonia as a nitrogen source, and then the bacteria are used as nutrients; the conversion process has the key that the urea decomposing speed is kept as synchronous as possible with the speed of using the ammonia by the rumen microbes, so that the rumen microbes are effectively utilized, the blood ammonia toxicity of the ammonia in the rumen is reduced, and utilization and absorption of the effective nitrogen source are promoted, the pH value change of the rumen is stabilized, and the urea is decomposed quickly in the rumen; and a large amount of non-used ammonia accumulated in vivo causes ammonia poisoning of cattle and sheep, causes metabolic disturbance of animal tissues and organs, and even causes death. The feed-grade urea comprises the following components in part by weight: 62 to 71 parts of urea, 1 to 9 parts of carboxymethyl cellulose sodium, 10 to 19 parts of corn starch, 6 to 14 parts of corn flour, 20 to 30 parts of water, and 6 to 15 parts of defatted rice bran. The feed-grade urea is used as a ruminant feed additive.

Description

Technical field: [0001] The invention relates to a feed grade urea and a preparation method thereof. Background technique: [0002] Microorganisms in the rumen of ruminants produce urease, which breaks down urea into ammonia and carbon dioxide. Rumen microorganisms use the decomposed ammonia as a nitrogen source to synthesize their own bacterial proteins, and then use these bacteria as nutrients. The key to this conversion process is that the speed of urea decomposition should be kept in sync with the speed of ammonia utilization by rumen microorganisms. Make the effective use of rumen microorganisms, reduce the ammonia toxicity of ammonia in the rumen, promote the utilization and absorption of effective nitrogen sources, and stabilize the pH value of the rumen. However, the decomposition rate of urea in the rumen is about 4 times that of ammonia utilization by rumen microorganisms. If the decomposition rate is too fast, a large amount of unused ammonia will accumulate in t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A23K1/22A23K50/15
Inventor 苑贵民
Owner 苑贵民
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com