Preparation and performance detection method of coated tryptophan pellet feed

A pellet feed and tryptophan technology, applied in the granulation method of raw materials, animal feed, microsphere preparation, etc., can solve the problems of reduced efficiency, increased workload of animal breeding, etc., and achieve improved production performance and good use effect , the effect of promoting utilization

Pending Publication Date: 2022-07-22
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when tryptophan is ingested by animals as feed, it will quickly take effect in the animal body. This is because tryptophan is a small molecule nutrient, and when it is ingested and used in large quantities, animals absorb and utilize The efficiency will be reduced, and the method of feeding a small amount and multiple times will obviously increase the workload of animal husbandry

Method used

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  • Preparation and performance detection method of coated tryptophan pellet feed
  • Preparation and performance detection method of coated tryptophan pellet feed
  • Preparation and performance detection method of coated tryptophan pellet feed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of coated tryptophan pellet feed, comprising the following steps:

[0034] Step 1: Core material preparation

[0035] Mix 30kg of L-tryptophan with 1kg of water and then carry out shot blasting to 1.5mm spherical particles.

[0036] Step 2: Mix and Dry

[0037] The drying temperature is 50° C., and drying is performed for 80 minutes, and the dried tryptophan pellets are obtained when the moisture content is less than or equal to 10 wt %.

[0038] Step 3: Fluidize

[0039] Pour the dried tryptophan pellets into the storage tank of the fluidized bed, adjust the air pressure of the fluidized bed to 0.01 MPa, the rotational speed to 90 r / min, the air inlet temperature to be 35 °C, and the air outlet temperature to be 25 °C.

[0040] Step 4: Wall Material Preparation

[0041] After melting 30 kg of C16-C18 fatty acids, it was cooled to 55°C.

[0042] Step 5: Coating

[0043] Mix the core material and the wall material with a weight ratio of 1:1 to ...

Embodiment 2

[0045] Different from above-mentioned embodiment 1, a kind of preparation method of coated tryptophan pellet feed comprises the following steps:

[0046] Step 1: Core material preparation

[0047] Mix 30kg of L-tryptophan and 1kg of water, and then carry out shot blasting treatment to 3mm spherical particles.

[0048] Step 2: Sieve

[0049] Spherical particles less than 3mm in diameter were rejected.

[0050] Step 3: Mix and Dry

[0051] The drying temperature is 70° C., and drying is performed for 50 minutes, and when the moisture content is less than or equal to 10 wt %, the dried tryptophan pellets are obtained.

[0052] Step 4: Fluidize

[0053] Pour the dried tryptophan pellets into the storage tank of the fluidized bed, adjust the air pressure of the fluidized bed to 0.024MPa, the rotation speed is 100r / min, the air inlet temperature is 45°C, and the air outlet temperature is 35°C.

[0054] Step 5: Wall Material Preparation

[0055] After melting 60 kg of hydrogenate...

Embodiment 3

[0059] A method for testing the performance of a tryptophan-coated pellet feed adopts an in vitro simulated digestive tract test, and the specific operation method is as follows:

[0060] Step 1: Test Materials

[0061] pH 6.6 buffer and pH 2.4 buffer, pH 6.6 buffer was used to simulate the rumen environment of ruminants, and pH 2.4 buffer was used to simulate the duodenal environment of ruminants. Coated tryptophan samples A and B, in which the mass percentage of tryptophan was 30% and 45% respectively, and uncoated tryptophan sample C.

[0062] Step 2: Test Method

[0063] For the stability test in different pH buffers, the uncoated tryptophan was used as the control group, and 1 g each of samples A, B, and C were weighed, placed at the bottom of a 50 ml stoppered test tube, 20 ml of buffer was added, and the test tube was tightly capped Stopped; digested in a constant temperature water bath shaker at 39°C for 2h, 4h, 8h, 12h and 24h; after taking out, rinsed, filtered, th...

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Abstract

A pellet feed preparation and pellet feed performance detection method belongs to the technical field of animal husbandry feed processing, and the preparation method comprises the following steps: preparing a core material, preparing a wall material, and mixing and coating the core material and the wall material according to a weight ratio to obtain a tryptophan-coated pellet feed. The performance detection method is a method combining an in-vitro simulated digestive tract test and an in-vivo nylon bag degradation test. Saturated fatty acid is used as a coating material, tryptophan is physically coated, through detection, in buffer solutions with different pH values, a sample coated with tryptophan is more stable in function and effect than an uncoated sample, the use effect is better, utilization of tryptophan by animal bodies is promoted, and when the coated feed enters the rumen and the intestinal tract, the feed is more stable in function and effect, and the feed is more stable in quality. The coating wall material can be effectively decomposed, the function of tryptophan is fully played, and the production performance is improved.

Description

technical field [0001] The invention belongs to the technical field of animal husbandry feed processing, and relates to a pellet feed preparation and pellet feed performance testing method, in particular to a method for preparing tryptophan pellet feed using coating technology, and a method for preparing the pellet feed after coating. Method for performing performance testing. Background technique [0002] Amino acids include essential amino acids and non-essential amino acids. Essential amino acids include leucine, isoleucine, tryptophan, lysine, methionine, phenylalanine, valine, and threonine. Tryptophan is one of the eight essential amino acids necessary for humans and animals. It cannot be synthesized by the body itself. Its metabolites are serotonin, melatonin, NAD (nicotinamide adenine dinucleotide), NADP and nicotinamide. Acids are also involved in the regulation of animal feeding, growth, reproduction, immunity, and anti-stress, and are called important precursors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/30A23K20/142A23K20/158A23K40/30B01J2/00B01J13/04G01N33/00
CPCA23K50/30A23K20/142A23K40/30A23K20/158G01N33/00B01J13/04B01J2/003G01N2033/0078
Inventor 黄卫东张益凡王梦芝王嘉盛张谨莹吴非凡丁洛阳王逸凡张振斌李怡
Owner YANGZHOU UNIV
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