A kind of poultry feed and preparation method thereof

Abstract

The invention discloses a poultry feed and a preparation method thereof. The present invention firstly provides a lipopeptide microbial surfactant raw material embedded in microcapsules, and then develops a poultry pellet feed with the function of helping fat absorption based on the lipopeptide microbial surfactant. The mass parts of each component are: 42-60 parts of corn flour, 13-39 parts of dehulled soybean meal, 4-12 parts of bran, 1-3 parts of soybean oil, and 1-3 parts of lipopeptide microorganisms embedded in microcapsules Surfactant, 0.3-1.9 parts of stone powder, 0.7-2.1 parts of calcium hydrogen phosphate, 0.1-0.3 parts of table salt, 0.2-0.8 parts of trace elements and 0.1-0.4 parts of choline chloride. The feed has complete nutrients, high maintenance degree, less nutritional antagonistic factors, good palatability and low cost, and has the beneficial effect of helping poultry absorb oil efficiently.

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...

Examples

Embodiment 1

[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...

Embodiment 2

[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.

Embodiment 3

[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.

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...

Examples

Embodiment 1

[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...

Embodiment 2

[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.

Embodiment 3

[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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