Method for reducing heavy metal emission in livestock and poultry manure

A technology for livestock and poultry manure and heavy metals, which is applied in the field of animal husbandry, can solve the problems of indigestion and utilization of animals, lack of good solutions, and insufficient utilization of iron, and achieve the effects of reducing gastric ulcer disease, reducing the discharge of heavy metals, and improving palatability.

Active Publication Date: 2015-10-07
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

In addition, the copper, iron, zinc, and manganese in the raw materials are contained in the seeds, and it is difficult for animals to digest and utilize them when feeding dry powder feed. For example, the utilization rate of iron is less than 3.0%, and the utilization rate of manganese is less than 7%.
[0004] How to meet the nutritional needs of pigs and promote pig growth while reducing the discharge of heavy metals in feces, reducing the occurrence of digestive tract ulcers, and reducing heavy metal pollution in manure, there is currently no good plan

Method used

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  • Method for reducing heavy metal emission in livestock and poultry manure
  • Method for reducing heavy metal emission in livestock and poultry manure
  • Method for reducing heavy metal emission in livestock and poultry manure

Examples

Experimental program
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example 1

[0020] According to the principle of similar body weight, age and sex ratio, 60 Du×Da×Chang three-way hybrid growth pigs with a body weight of 60.10±0.50kg were selected and randomly divided into control group, test group I and test group II, with 4 pigs in each group Repeat, 5 heads per repetition. The diet of the control group was a corn-soybean meal type dry powder diet with a feed crushing particle size of 0.90 mm, the diet of the test group I was a corn-soybean meal type dry powder diet with a feed crushing particle size of 0.70 mm, and the test group II was a feed crushing particle size 0.70mm corn-soybean meal type fermented wet feed diet. The formal trial period is 42 days. Start adding 0.3% Cr in feed before end 3d 2 o 3 , Collect feces samples continuously for 3 days in repeated units, and use them to determine the content of copper, iron, zinc, and manganese in pig manure and the utilization rate of copper, iron, zinc, and manganese in corn, soybean meal, and bra...

example 2

[0036] According to the principle of similar body weight, age and sex ratio, 75 Audelai growing and finishing pigs with a body weight of 60.10±0.50kg were selected and randomly divided into the control group, the test group I and the test group II, and each group had 5 repetitions. 5 heads. The diet of the control group was a corn-soybean meal type dry powder diet with a feed crushing particle size of 1.50 mm, the diet of the test group I was a corn-soybean meal type dry powder diet with a feed crushing particle size of 0.40 mm, and the test group II was a feed crushing particle size 0.40mm corn-soybean meal fermented wet diet. The formal trial period is 56 days. Start adding 0.3% Cr in feed before end 3d 2 o 3 , Feces samples were collected continuously for 3 days in repeated units, and used to determine the content of copper, iron, zinc, and manganese in pig manure and the utilization rate of copper, iron, zinc, and manganese in corn, wheat, soybean meal, rapeseed meal, a...

example 3

[0049]According to the principle of similar body weight, age and sex ratio, 60 Topek fattening pigs with a body weight of 60.10 ± 0.50 kg were selected and randomly divided into control group, test group I and test group II, with 4 repetitions in each group and 5 repetitions in each group. head. The diet of the control group was a corn-soybean meal type dry powder diet with a crushed particle size of 1.00 mm, the diet of the test group I was a corn-soybean meal type dry powder diet with a crushed particle size of 0.60 mm, and the test group II was a corn-soybean meal type dry powder diet with a crushed particle size of 0.60 mm. mm corn-soybean meal-based fermented wet-fed diet. The formal trial period is 42 days. Start adding 0.3% Cr in feed before end 3d 2 o 3 , Collect feces samples continuously for 3 days in repeated units, and use them to determine the content of copper, iron, zinc, and manganese in pig manure and the utilization rate of copper, iron, zinc, and manganes...

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Abstract

The invention discloses a method for reducing heavy metal emission in livestock and poultry manure. The method comprises the following steps: firstly, producing a mixed feed additive comprising microorganisms, a trace element namely zinc and a carrier, wherein the microorganisms comprise four or five of aspergillus niger, bacillus lentus, bacillus subtilis, bacillus amyloliquefaciens, and lactobacillus plantarum; mixing the mixed feed additive with crushed coarse feed raw materials of which the particle granularity is 0.4-0.7mm, crushed protein feed raw materials, crushed energy feed raw materials, vitamins and mineral elements so as to obtain a complete formula dry powder feed; adding water in the complete formula dry powder feed till the water content is 40-50%; performing anaerobic fermentation under indoor temperature for 3-5 days; and feeding the fermented feed to livestock and poultry in a wet feeding manner. Through the adoption of the method disclosed by the invention, the utilization ratios of copper, iron, zinc and manganese in the feed raw materials are increased; trace elements of copper, manganese and iron do not need to be added in feeds for living pigs, so that the possibility that pigs suffer from the disease of gastric ulcer can be reduced; besides, the palatability of feeds can be improved; when the production performance of animals is improved, the heavy metal emission in manure is reduced.

Description

technical field [0001] The invention relates to a method for reducing the discharge of heavy metals in livestock manure, belonging to the technical field of animal husbandry. Background technique [0002] Livestock manure has become one of the important sources of heavy metal pollution in farmland soil. With the rapid development of my country's large-scale breeding industry, the harmful pollutants of heavy metals such as copper, zinc, and arsenic in livestock and poultry manure have gradually increased, which has become a key limiting factor affecting the healthy function of farmland soil. Zhang Shuqing (2004) found that the copper content in some pig manure has reached 1591mg / kg, and the zinc content has reached 8710mg / kg, far exceeding the maximum copper content of 500mg / kg and zinc content of 1000mg / kg in the harmless treatment of heavy metals in manure composting. Excessive heavy metals in feces not only pollute the soil, but also accumulate in plants through the food ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/16A23K1/175A23K1/14A23K1/00
CPCY02P60/87
Inventor 盛清凯战余铭张明花周萍苏成文孙家林李祥明赵红波张印吕辉苗刚
Owner INST OF ANIMAL SCI & VETERINARY MEDICINE SHANDONG ACADEMY OF AGRI SCI
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