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Lean-type feed additive and application thereof

A feed additive, lean meat type technology, applied in the field of lean meat type feed additives, can solve the problems of no green safety, etc., achieve the effects of human body safety and harmlessness, promote animal fat metabolism, and promote protein deposition

Active Publication Date: 2009-09-09
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no suitable green and safe lean meat feed additive with wide application value

Method used

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  • Lean-type feed additive and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10

[0026] Embodiment 1~10: additive production

[0027] Inoculate the slant strain of Gluconobacterium oxidans CCTCC No: M 208069 stored in a refrigerator at 4°C into sterile slant medium, and culture at 30°C until a single colony grows. The composition of the slant medium is as follows: glucose 20g / L, yeast extract powder 5g / L, agar 20g / L, solvent is water, pH7.0;

[0028] Put 50mL shake flask liquid seed culture medium into a 500mL Erlenmeyer flask, sterilize at 121°C for 20min and set aside. The slant seeds were inoculated into the liquid seed medium of the shaker flask, shaken and cultured for 24 hours at 30°C and 200rpm on a shaker, and the seed liquid was obtained for use; the composition of the liquid seed medium of the shaker flask was as follows: glycerol 20g / L, yeast extract powder 10g / L L, the solvent is water, pH 6.5.

[0029] In a 15L fermenter, add 10L fermentation medium, sterilize at 121°C for 30min, add 5% (V / V) seed liquid after cooling, and ferment for 30h. T...

Embodiment 11

[0033] Example 11: Effect of additives on growth performance of growing and finishing pigs

[0034] Select 120 Du×(long×big) three-component hybrid growth-finishing pigs with a body weight of about 45 kg, and divide them into 4 groups according to sex and body weight, with 3 replicates in each group, and 10 pigs in each replicate (half male and half female) , each group was fed the control diet and diets containing 2.5%, 5.0%, and 10.0% additives, respectively. The formula of the additive is (weight ratio): 48% of dihydroxyacetone, 4% of glycerin, 18% of calcium pyruvate, and 30% of zeolite powder (additive of embodiment 1).

[0035] The test pigs were raised in the same pig house, and the feeding and management conditions of each test group were the same, with free access to food and water. After grouping, the pre-test period was 7 days, and the main test period was 35 days. After the test, the average daily gain of growing and finishing pigs in the control group and the tes...

Embodiment 12

[0036] Example 12: Effects of Additives on Growth Performance of Broilers

[0037]320 7-day-old healthy Avian broilers were selected and divided into 4 groups according to sex and body weight. Each group had 4 replicates, and each replicate had 20 broiler chickens (half male and half female), and each group was fed to the control group. Diets and rations containing 2.5%, 5.0%, 10.0% additives. The formula of the additive is (weight ratio): 30% of dihydroxyacetone, 1% of glycerin, 15% of potassium pyruvate, and 55% of zeolite powder (additive of embodiment 2).

[0038] The test broilers were kept in cages, with free access to food and water. After grouping, the pre-test period was 7 days, and the main test period was 28 days. After the test, the average daily gain of growing and finishing pigs in the control group and the test group were 57.6±3.8 grams, 58.3±4.2 grams, 57.7±3.5 grams, 56.9±3.3 grams, and the feed-to-weight ratio was 2.24±0.25 and 2.27±0.18 respectively , 2.17...

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Abstract

The invention provides a lean-type feed additive and application thereof. The feed additive comprises the ingredients with the following weight proportions: 10%-50% of dihydroxyacetone, 5%-20% of pyruvic acid compound, 0.1%-5.0% of glycerol, and zeolite power being the rest. The feed additive of the invention can significantly promote animal lipid metabolism and promote protein deposition; key materials such as dihydroxyacetone and pyruvic acid microbe are adopted in the additive for transforming glycerol products, therefore, the production condition is moderate, and process is simple, product is environment friendly and can be biologically degraded, with no harm to human body.

Description

(1) Technical field [0001] The invention relates to a lean meat type feed additive with dihydroxyacetone (DHA), glycerin, pyruvate or pyruvate (ester) as key components and its application. (2) Background technology [0002] With the improvement of living standards and the adjustment of dietary structure, people pay more and more attention to nutrition and health, especially the quality of animal products. Reducing ketone body fat and increasing lean mass have been the main goals of animal breeding and animal nutrition for the past few decades. Because the breeding cycle of lean-meat pig breeds is long, it often takes more than 10 to 20 years. Using metabolic regulators to promote animal fat consumption and protein deposition is an effective method, such as using "lean meat powder" to increase lean meat percentage. The use of adrenoceptor agonists and sterols as growth promoters in animal diets is prohibited due to the residual risk caused by excessive consumption. "Clenb...

Claims

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Application Information

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IPC IPC(8): A23K1/16A23K20/10A23K20/28
Inventor 郑裕国王亚军胡忠策
Owner ZHEJIANG UNIV OF TECH
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