Paulownia leaf extract feed additive

A technology of feed additive and paulownia leaf, which is applied in the field of feed additive of paulownia leaf extract, can solve the problems of restrictions on popularization and application of paulownia leaf, increased manpower input, and large usage, so as to enhance animal immunity, improve feed conversion rate, and prevent The effect of animal digestive tract diseases

Inactive Publication Date: 2012-06-13
ZHENJIANG TIANHE BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the intensification and scale of the current breeding industry, directly adding Paulownia leaves or coarse debris of Paulownia leaves to the f

Method used

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  • Paulownia leaf extract feed additive
  • Paulownia leaf extract feed additive
  • Paulownia leaf extract feed additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Accurately weigh 100kg of washed and dried paulownia leaves, crush them and pass through a 5-20 mesh sieve, add 800kg of water to soak for 1 hour, boil, extract for 1.5 hours, filter, add 400kg of water, boil, extract for 1 hour, and filter ; The two extracts were combined, mixed evenly, and concentrated into an extract with a relative density of 1.10. The paulownia leaf extract extract is sprayed and processed into the paulownia leaf extract dry powder through a spray drying tower. The technological conditions of the spray drying are: the tower inlet air temperature is 170°C, the outlet air temperature is 80°C, and the inlet air pressure is 40Mpa. The moisture content of the obtained Paulownia leaf extract dry powder is 2.62%. Then the Paulownia leaf extract dry powder is mixed with the chaff powder according to the ratio of 1:5 to prepare the Paulownia leaf extract feed additive.

[0015] In a pig farm in Longyan, Fujian, the Paulownia leaf extract feed additive pre...

Embodiment 2

[0019] Accurately weigh 100kg of washed and dried paulownia leaves, crush them, pass through a 5-20 mesh sieve, add 1000kg of water to soak for 1 hour, boil, extract for 2 hours, filter, add 500kg of water, boil, extract for 1 hour, and filter; combine The two extracts were mixed evenly and concentrated into an extract with a relative density of 1.15. The paulownia leaf extract extract is sprayed and processed into the paulownia leaf extract dry powder through a spray drying tower. The technological conditions of the spray drying are: the inlet air temperature is 180°C, the outlet air temperature is 85°C, and the inlet air pressure is 40Mpa. The moisture content of the obtained Paulownia leaf extract dry powder was 2.81%. Then, the dry powder of the Paulownia leaf extract and silicon dioxide are mixed according to the ratio of 1:4 to prepare the Paulownia leaf extract feed additive.

[0020] In a pig farm in Qingdao, Shandong, the Paulownia leaf extract feed additive prepare...

Embodiment 3

[0024] Accurately weigh 100kg of washed and dried paulownia leaves, crush them, pass through a 5-20 mesh sieve, add 1200kg of water to soak for 1 hour, boil, extract for 1.5 hours, filter, add 600kg of water, boil, extract for 1.5 hours, and filter ; The two extracts were combined, mixed, and concentrated into an extract with a relative density of 1.20. The paulownia leaf extract extract is sprayed and processed into the paulownia leaf extract dry powder through a spray drying tower. The technological conditions of the spray drying are as follows: the air inlet temperature of the tower is 190°C, the air outlet temperature is 90°C, the air inlet pressure is 40Mpa, and the moisture content of the obtained Paulownia leaf extract dry powder is 2.74%. Then the dry powder of the Paulownia leaf extract is mixed with the calcium carbonate according to the ratio of 1:6 to prepare the Paulownia leaf extract feed additive.

[0025] In a pig farm in Weifang, Shandong, the Paulownia leaf ...

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Abstract

The invention relates to a Paulownia leaf extract feed additive, which is prepared by the following specific method: drying Paulownia leaves, crushing, sieving through a sieve of 5-20 meshes, immersing for 1h by adding water which accounts for 8-12 times of the weight of the Paulownia leaves, extracting for 1-2 h, filtering, adding water which accounts for 4-6 times of the weight of Paulownia leaves, boiling, extracting for 1-2h, filtering, merging two extracts, mixing, condensing into an extract with its relative density being 1.10-1.20, and carrying out mist-jet machining on the Paulownia leaf extract into a Paulownia leaf extract dry powder by a spray drier, and uniformly mixing the Paulownia leaf extract dry powder with one or more carriers selected from the group consisting of silica, calcium carbonate, rice husk powder and mountain flour according to a certain ratio to prepare the feed additive. Technological conditions of the spray drying process are as follows: inlet air temperature is 170-190 DEG C; air-out temperature is 80-90 DEG C; and inlet air pressure is 40 MPa. The water content of the Paulownia leaf extract powder is less than or equal to 5%.

Description

Technical field: [0001] The invention relates to a paulownia leaf extract feed additive, which belongs to the technical field of feed additives. Background technique: [0002] Antibiotics or chemical feed additives have many functions such as promoting animal growth, preventing animal diseases, and improving breeding benefits, but they also cause serious negative effects, such as drug resistance of pathogenic microorganisms, reduction of animal immunity, and drug residues. Human health hazards and environmental pollution caused by excrement. With the increasingly prominent food safety issues, seeking a pollution-free and residue-free natural feed additive has become an urgent task for the development of the feed industry. [0003] Paulownia leaf is the leaf of Paulownia tomentosa or Paulownia tomentosa of Scrophulariaceae, bitter in taste and cold in nature. It mainly contains aucubin, paulownioside, verbascoside, isoverbascoside, ursolic acid, acetylursolic acid α, β and ...

Claims

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Application Information

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IPC IPC(8): A23K1/14A23K1/16
CPCY02P60/87
Inventor 栾必荣栾勇卢建平吴艳梅顾文松丁凤
Owner ZHENJIANG TIANHE BIOLOGICAL TECH
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