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
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  • 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 r

Method used

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  • 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

Example Embodiment

[0028] Example 1:

[0029] Feed grade urea:

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

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

[0032] c. Add 19 parts of corn starch and stir fully to form a paste. After gelatinization, add 14 parts of corn flour and 15 parts of defatted rice bran, stir, and then enter the rocking crushing mechanism to ventilate the grains in countercurrent to the finished product.

Example Embodiment

[0033] Example 2:

[0034] Feed grade urea:

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

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

[0037] c. Add another 10 parts of corn starch and stir fully to form a paste. After gelatinization, add 6 parts of corn flour and 6 parts of defatted rice bran, stir, and then enter the rocking crushing mechanism to ventilate the grains in countercurrent to the finished product.

Example Embodiment

[0038] Example 3:

[0039] Feed grade urea:

[0040] a. Take 5 parts of sodium carboxymethyl cellulose according to parts by weight, add 25 parts of water, stir and dissolve to prepare carboxymethyl cellulose sodium suspension;

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

[0042] c. Add 14 parts of corn starch and stir fully to form a paste. After gelatinization, add 10 parts of corn flour and 9 parts of defatted rice bran, stir, and then enter the rocking crushing mechanism to ventilate the grains in countercurrent to the finished product.

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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

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Application Information

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IPC IPC(8): A23K1/22A23K50/15
Inventor 苑贵民
Owner 苑贵民
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