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Method for preparing feed through water-saving homogenized ammoniation of crop straw

A crop straw and homogenization technology, applied in the field of preparation of crop straw feed, can solve the problems of incomplete ammoniation and high cost, achieve the effects of preventing mildew, improving digestibility, and promoting animal husbandry production

Pending Publication Date: 2021-02-02
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problems of high cost and incomplete ammoniation of the existing urea ammonification method for straw, and provides a water-saving method for preparing feed through homogeneous ammoniation of crop straw

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: urea is made into pulverized powder; in the field, the powder sprayer is placed in the feeding port of the pick-up pulverizer, and the urea powder is sprayed in the green corn stalk with a moisture content of 15% to be wrapped, Carry out baling, wherein the spraying amount of urea powder is 4% of the dry weight of corn stalks, after baling, after 15 days of natural ammoniation, feed is obtained.

[0020] The method urea of ​​present embodiment 1 adds evenly, handles without water, and is convenient. The obtained feed was observed after opening the package, and the ammoniation effect was remarkable and there was no mildew. Compared with the unammonated green corn stover, the crude protein increased by 12%. Feed intake increased by 15% and digestibility increased by 13% when fed to cattle.

Embodiment 2

[0021] Embodiment 2: urea is made into pulverized powder; in the field, with a hand-held powder sprayer, urea powder is sprayed in rice straw with a moisture content of 13% to be wrapped, and stored in a cellar, wherein the application of urea powder The spraying amount is 5% of the dry weight of the rice straw, and after baling, the feed is obtained after natural ammoniation for 13 days.

[0022] The method of Example 2 adds urea evenly, without water, and is easy to operate. The obtained feed ammoniation effect is remarkable and has no mildew. Crude protein increased by 11% compared to unammonated rice straw. Feed the sheep with open bags, the feed intake increased by 12%, and the digestibility increased by 10%.

Embodiment 3

[0023] Embodiment 3: according to the mass percentage concentration of urea, urea is dissolved in water to obtain urea solution at 35%; The amount of application is based on the weight of urea in the urea solution accounting for 4% of the air-dry weight of the straw, and then baled and naturally ammonified for 10 days to obtain the feed.

[0024] The method of this embodiment 3 adds uniform urea, has less water consumption, and is easy to operate. The obtained feed was observed after opening the package, and the ammoniation effect was remarkable and there was no mildew. Compared with non-ammoniated air-dried corn stover, after feeding cattle, the crude protein increased by 10%, the feed intake increased by 12%, and the digestibility increased by 9%.

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Abstract

The invention discloses a method for preparing feed through water-saving homogenized ammoniation of crop straw, and relates to a preparation method of crop straw feed. The invention aims to solve thetechnical problems of high cost and incomplete ammoniation of an existing method for straw ammoniation through urea. The method comprises the following steps: crushing urea into powder, spraying ureapowder into straw by using a powder sprayer, and then carrying out baling or cellar storage ammoniation; or dissolving urea into a small amount of water, spraying the urea solution into the straw by using a sprayer, and then carrying out baling or cellar storage ammoniation. Compared with untreated straw, the straw treated has the crude protein increased by 9%-12%, the food consumption increased by 12%-15% and the digestibility increased by 8%-13%, is not limited by sites and moisture conditions, and can be applied to the field of large-scale improvement of straw as feeds.

Description

technical field [0001] The invention relates to a preparation method of crop straw feed. Background technique [0002] As the environmental problems caused by straw burning in the field have gradually been paid attention to, extensive research has been carried out on the utilization of straw "five materials". It is considered to be the most effective way to treat and improve straw as feed for ruminants; with the popularization and application of large-scale harvesting and crushing machinery, large-scale processing of straw as feed is becoming more and more possible and has gradually attracted attention. [0003] China produces 800-900 million tons of corn, rice, wheat and other crop straws every year. The emergy content of these crop straws is the same as forage grass such as chinensis, and has great value as feed for ruminants such as cattle and sheep. However, due to the low digestibility of various crop straws, it is theoretically very feasible to use urea to ammoniate ...

Claims

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Application Information

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IPC IPC(8): A23K40/10A23K10/30
CPCA23K40/10A23K10/30Y02P60/87
Inventor 赵成振张琦林孙海霞周道玮
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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