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Method for determining degradation rate of raw materials in fermentation bed padding

A measurement method and a technology of degradation rate, which are applied in the field of animal husbandry, can solve problems such as the degradation rate of fermented mattress materials that have not yet been seen, and achieve the effect of promoting promotion and reducing the cost of bedding materials

Active Publication Date: 2013-09-04
INST OF ANIMAL SCI & VETERINARY MEDICINE SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the determination method of the degradation rate of different raw materials in fermented mattress materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0012] Example 1 measures the degradation rate of corncob

[0013] The corncobs are crushed, and the minimum grain size of the crushed corncobs is 2.5mm. Rinse the crushed corn cobs with distilled water, and then dry them at 65°C for use. Dry the window screen bag (the area of ​​the window screen bag is 7×14cm, the hole diameter is 1.8mm) at 65°C. The crushed and dried corncobs were weighed to be 1.0278g. Weigh the screen bag, the weight of the screen bag is 0.0282g. Put the weighed dried corncobs into the window screen bag, and tie the window screen bag tightly with the string of the window screen bag. The temperature measured at a depth of 28 cm of the litter was 43°C. Dig the litter to a depth of 28cm, and spread the window screen bag, and the thickness of the sample in the window screen bag is 2.5mm. Backfill the excavated litter, the upper surface of the litter will be leveled again, and the live pigs will move on the litter. After 7 days, open the bedding and take ...

example 2

[0014] Example 2 measures the degradation rate of peanut shells

[0015] The peanut shells are broken, and the minimum particle size of the broken peanut shells is 3.0mm. Rinse the crushed peanut shells with distilled water, dry them at 65°C for use after rinsing. Dry the window screen bag (the area of ​​the window screen bag is 7×14cm, the hole diameter is 2.0mm) at 65°C. Weigh the crushed and dried peanut shells, which is 1.3621g. Weigh the screen bag, the weight of the screen bag is 0.0279g. Put the weighed dried peanut shells into the window screen bag, and tie the window screen bag tightly with the string of the window screen bag. The temperature measured at a depth of 32 cm from the litter was 45°C. Dig the litter to a depth of 32cm, and spread the window screen bag, and the thickness of the peanut shell in the window screen bag is 3.0mm. Backfill the excavated litter, re-pave the upper surface of the litter, and live pigs move on the litter. After 7 days, open the...

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Abstract

The invention discloses a method for determining degradation rate of raw materials in a fermentation bed padding, comprising the following steps: crushing and drying a raw material sample to be measured, weighing and recording the weight as W1; drying and weighing a window screen bag, and recording the weight as W2; putting the processed raw material sample into the window screen bag, and tightening the opening of the window screen bag; turning over the fermentation bed padding, laying the window screen bag with the opening being tightened flat 23-32cm deep inside the fermentation bed padding, laying the window screen bag flat; backfilling the fermentation bed padding, letting live pigs move on the fermentation bed padding; taking out the window screen bag after seven days, rinsing the removed window screen bag clean in distilled water, drying, weighing and recording the weight as W3; and calculating the degradation rate of the sample through a formula of ''(W1+W2-W3) / W1*100=degradation rate of the sample''. According to the invention, the degradation rate in the padding is determined by a window screen bag method. The sample to be measured in the window screen bag is contacted with the fermentation bed padding without any distance, and the real degradation rate of the sample in the padding is obtained.

Description

technical field [0001] The invention relates to a method for measuring the degradation rate of raw materials (corn cobs, peanut shells, etc.) in fermented mattress materials, and belongs to the technical field of animal husbandry. Background technique [0002] Fermentation bed pig raising technology has been promoted all over the country, but the fermentation bed pig raising technology still faces many problems. Departments at the national, provincial and municipal levels have also established research projects for many times (National Natural Science Foundation of China 31172245, Lu Cai Nong Zhi [2012] No. 79, etc.). One of the key problems facing the fermentation bed is: how to find substitutes for sawdust and rice husks to reduce the cost of litter. A variety of data show that the carbon-nitrogen ratio is used as the calculation index when different raw materials such as corncobs, straws, and peanut shells are used to replace sawdust and rice husks. The carbon-nitrogen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/00
Inventor 盛清凯周开锋杨景晁刘艳花韩红王星凌刘玉民武英曲绪仙林海崔超张先勤赵红波
Owner INST OF ANIMAL SCI & VETERINARY MEDICINE SHANDONG ACADEMY OF AGRI SCI
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