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Application of DL-methionine dipeptide for preparing pigeon feed or additives

A technology of methionine and additives, applied in application, animal feed, additional food elements, etc., can solve the problems of reduced animal production performance, low methionine utilization efficiency, and increased mortality, and achieve increased absorption and utilization efficiency, good effect, water-soluble Sexually low effect

Pending Publication Date: 2020-09-18
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, methionine is a monomeric amino acid. Due to the limited transport carrier and water solubility in the intestinal tract, the utilization efficiency of methionine in pigeon feed is low, and adding too much monomeric amino acid will cause antagonism between amino acids, which will lead to reduced animal production performance and increased mortality

Method used

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  • Application of DL-methionine dipeptide for preparing pigeon feed or additives
  • Application of DL-methionine dipeptide for preparing pigeon feed or additives
  • Application of DL-methionine dipeptide for preparing pigeon feed or additives

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 breeds the preparation of pigeon feed

[0029] 1. Experimental materials

[0030] DL-methionine: commercially available, purity>99%.

[0031] DL-methionine dipeptide: commercially available, purity>95%.

[0032] 2. Experimental design

[0033] The test selected 324 pairs of American white king pigeons that laid eggs on the same day with similar production performance and reproductive performance, and randomly divided them into 9 treatment groups. Each treatment group had 6 repetitions, and each repetition had 6 pairs of breeding pigeons.

[0034] The diets of 9 treatment groups included: basal diet (CP=15.0%) and 0.15%, 0.30%, 0.45% and 0.60% of DL-methionine or DL-methionine dipeptide were added to the basal diet respectively. The test period includes: 2 periods of hatching period and feeding period, 45 days. Batching is done twice, and the diet is stored in a dry, dark environment.

[0035] 3. Feeding management

[0036] The test was carried out at ...

Embodiment 2

[0045] Example 2 Effect of adding DL-methionine dipeptide to breeding pigeons' performance

[0046] 1. Experimental method

[0047] The average daily feed intake of breeding pigeons: during the test period, the feeding amount and the remaining feed amount were counted in units of weeks, and the average daily feed intake during the hatching period, the feeding period and the whole test period were calculated respectively, and the average daily feed intake of each pair of breeding pigeons in each period was calculated. Feed intake, the calculation formula is as follows:

[0048] Average daily feed intake (g / d / pair) = total feed intake in each stage (g) / test days in each stage (d).

[0049] Breeding pigeon body weight loss: After the first and last fasting of 12 hours during the hatching period and the feeding period, the weight of (every pair) breeding pigeons was weighed in cages, and the weight loss of each pair of breeding pigeons in each period was calculated. The calculati...

Embodiment 3

[0058] Example 3: Effect of Adding DL-Methionine Dipeptide to the Pigeon Milk Protein Synthesis of Pigeons

[0059] 1. Experimental method

[0060] Refer to GB / T 6432-1994 Determination of Crude Protein in Feed.

[0061] 2. Experimental results

[0062] The effect of different doses of DL-methionine dipeptide on the protein synthesis of pigeon milk in breeding pigeons was as follows: figure 1 As shown, it can be seen that, compared with the basal diet group, adding 0.30% DL-methionine, 0.30% DL-methionine dipeptide and 0.60% DL-methionine dipeptide in the basal diet, the crude protein in the pigeon milk The contents increased by 3.48%, 3.54% and 3.39% respectively (P0.05).

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Abstract

The invention discloses application of DL-methionine dipeptide for preparing pigeon feed or additives. Research discovers that when the DL-methionine dipeptide is added into the daily ration of a breeding pigeon, the average feed intake of the breeding pigeon is obviously increased, the weight loss of the breeding pigeon is obviously lowered, the pigeon milk protein secretion volume of the breeding pigeon is obviously increased, the crop thickness and the crop relative weight of the breeding pigeon can be obviously increased, the average daily weight gain of a young pigeon is obviously increased, the death rate of the young pigeon is obviously lowered, the carcass rate, the half-eviscerated rate, the full-eviscerated rate, the pectoralis rate and the crureus rate of the young pigeon can beobviously increased, and the a* value of the muscle of the pectoralis, the L* value of the muscle of the crureus, the drip loss and the cooking loss of the young pigeon can be obviously lowered. Therefore, the DL-methionine dipeptide has a wide application prospect for preparing the pigeon feed or additives.

Description

technical field [0001] The invention belongs to the technical field of poultry feed. More specifically, it relates to the application of DL-methionine dipeptide in the preparation of pigeon feed or additives. Background technique [0002] With the improvement of economic development and people's consumption level, people's requirements for the quality of poultry meat products are gradually increasing. Pigeon meat is delicious, rich in amino acids, and has reasonable fatty acid composition and high medicinal value. It is a high-protein, low-fat poultry product. In recent years, the meat pigeon industry has developed rapidly and has become the fourth type of meat and poultry after chicken, duck and goose. According to statistics, there are about 42 million pairs of breeding pigeons in my country, and 680 million pigeons are slaughtered every year, accounting for more than 80% of the world's total production. However, the industry is still in its infancy, and basic research ...

Claims

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Application Information

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IPC IPC(8): A23K50/75A23K20/147A23K20/142
CPCA23K50/75A23K20/147A23K20/142
Inventor 高春起姜世光王修启金成龙严会超谭会泽刘松柏
Owner SOUTH CHINA AGRI UNIV
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