Young poultry feed and preparation method thereof

A technology of feed and poultry, applied in the field of feed, to achieve the effect of increasing flavor, promoting the growth of poultry, and simple steps

Active Publication Date: 2021-04-30
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The inventor of the present application provided a floating feed for juvenile snakehead fish that can help oil absorption and its preparation method in the patent with the publication number CN110495530A of the previous

Method used

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  • Young poultry feed and preparation method thereof
  • Young poultry feed and preparation method thereof
  • Young poultry feed and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0055] Embodiment 1 Preparation of lipopeptide microbial surfactant embedded in microcapsules

[0056] (1) Transformation of Achromobacter sp.HZ01-2:

[0057] Through ultraviolet mutagenesis, plasma mutagenesis, ethyl methanesulfonate (EMS) mutagenesis and its compound mutagenesis methods, the yield of lipopeptide surfactant for Achromobacter sp.HZ01 is 0.29~ 0.82g / L) for multiple mutagenesis screening, and then through sheep blood plate primary screening and shake flask fermentation re-screening, a high-yield mutant strain of Achromobacter sp.HZ01-2 with stable genetic characteristics was finally obtained (Achromobacter sp.HZ01-2; lipopeptide Surfactant-like yield is 1.81~2.77g / L).

[0058] (2) Preparation of lipopeptide biosurfactant embedded in microcapsules:

[0059] The transformed Achromobacter sp.HZ01-2 was fermented; then the fermentation supernatant was subjected to ultrafiltration through a 360Da ultrafiltration membrane, and the filtrate was collected; 0.5% ( Sod...

Example Embodiment

[0063] Embodiment 2 Preparation of lipopeptide microbial surfactant embedded in microcapsules

[0064] The transformed Achromobacter sp.HZ01-2 was fermented; then the fermentation supernatant was ultrafiltered through a 1000Da ultrafiltration membrane, and the filtrate was collected; 2% ( Sodium alginate (mass of sodium alginate / volume of filtrate) is spray-dried at an inlet air temperature of 220° C. and a feed rate of 600 mL / h to obtain lipopeptide biosurfactants embedded in microcapsules.

Example Embodiment

[0065] Embodiment 3 Preparation of lipopeptide microbial surfactant embedded in microcapsules

[0066] The transformed Achromobacter sp.HZ01-2 was fermented; then the fermentation supernatant was subjected to ultrafiltration through a 600Da ultrafiltration membrane, and the filtrate was collected; 1.0% ( Sodium alginate (mass of sodium alginate / volume of filtrate) is spray-dried at an inlet air temperature of 180° C. and a feed rate of 350 mL / h to obtain lipopeptide biosurfactants embedded in microcapsules.

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Abstract

The invention discloses a young poultry feed and a preparation method thereof. According to the invention, firstly, a lipopeptide microbial surfactant raw material embedded by microcapsules is provided, and then, based on the lipopeptide microbial surfactant, the young poultry granulated feed with the function of assisting grease absorption is developed. The feed comprises the following components in parts by mass: 42-60 parts of corn flour, 13-39 parts of peeled soybean meal, 4-12 parts of bran, 1-3 parts of soybean oil, 1-3 parts of a lipopeptide microbial surfactant embedded by microcapsules, 0.3-1.9 parts of stone powder, 0.7-2.1 parts of calcium hydrophosphate, 0.1-0.3 part of edible salt, 0.2-0.8 part of trace elements and 0.1-0.4 part of choline chloride. The feed is complete in nutrients, high in retention degree, few in nutritional antagonistic factors, good in palatability and low in cost, and has the beneficial effect of helping young poultry to efficiently absorb grease.

Description

technical field [0001] The invention belongs to the technical field of feed. More specifically, it relates to a poultry feed and a preparation method thereof. Background technique [0002] In the intensive farming of poultry, high-fat feed occupies an important position. The energy density of fat is 2 to 3 times that of other feed components, which can not only provide high energy for poultry, but also provide essential fatty acids and improve the palatability of feed. However, oil is not easily digested and absorbed by poultry, and it is easy to cause nutritional diarrhea, resulting in slow growth of poultry, which not only wastes feed, but also significantly reduces the benefits of poultry farming. [0003] Existing studies have shown that the poor absorption of oil in feed by poultry is not mainly due to the insufficient secretion and activity of lipase, but mainly due to the low emulsification effect of oil in poultry. Therefore, adding surfactants to feed can improve...

Claims

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Application Information

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IPC IPC(8): A23K50/75A23K20/163A23K20/10A23K10/12A23K10/30A23K10/37A23K20/158A23K20/20A23K20/26A23K20/105A23K40/10
CPCA23K50/75A23K20/163A23K20/10A23K10/12A23K10/30A23K10/37A23K20/158A23K20/20A23K20/26A23K20/105A23K40/10A23K20/30Y02P60/87
Inventor 王钦庆王江海周芊至袁建平岳备影徐祥坡
Owner SUN YAT SEN UNIV
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