Cottonseed meal fermented feed for improving meat quality of broiler chickens, preparation method and application

Abstract

The invention discloses a cottonseed meal fermented feed for improving meat quality of broiler chickens, and a preparation method and application thereof, and belongs to the technical field of feeds. The cottonseed meal fermented feed disclosed by the invention is prepared from the following raw materials in parts by mass: 40 to 60 parts of corn flour, 10 to 30 parts of bran, 25 to 35 parts of cottonseed meal fermented materials, 0.8 to 1.2 parts of mountain flour, 0.8 to 1.2 parts of calcium hydrogen phosphate, 0.1 to 0.3 part of trace element premix, 0.3 to 0.5 part of lysine and 0.1 to 0.3 part of methionine. The preparation method comprises the following steps: preparing the raw materials in proportion, uniformly mixing, granulating and drying to obtain the cottonseed meal fermented feed. The invention discloses application of the cottonseed meal fermented feed. The cottonseed meal fermented feed is used in the growth period and the fattening period of broiler feed. The broiler chickens fed with the cottonseed meal fermented feed have better growth performance, and have an unexpected effect of improving the muscle quality of the broiler chickens.

Description

Technical Field

[0001] The invention belongs to the technical field of feed, and in particular relates to a cottonseed meal fermented feed for improving broiler muscle quality, and a preparation method and application thereof. Background Art

[0002] Cottonseed meal is a byproduct of cottonseed oil extraction, mainly composed of cottonseed hulls, fiber and protein. The crude protein content of cottonseed meal is generally around 40%, and the crude fiber content is about 15%-20%. In addition, cottonseed meal is rich in minerals such as calcium and phosphorus. Cottonseed meal is a high-quality plant protein feed raw material and has important application value in broiler feed. However, because it contains the anti-nutritional factor gossypol, it will affect the growth performance and health of broilers, and may cause death in severe cases. Therefore, the amount of cottonseed meal added to broiler feed needs to be strictly controlled, usually not exceeding 5%-10%.

[0003] my country is a major cotton producer, and its cottonseed meal production is also the largest in the world. In 2012, China's cottonseed meal production was 4,316,000 tons (about 4.316 million tons). By 2023, data shows that China's annual cottonseed meal production will be about 4 million tons. It is of great significance to make full use of cottonseed meal.

[0004] Therefore, providing a broiler feed with a high cottonseed meal content, which not only increases the raw material usage of cottonseed meal but also is beneficial to the growth and breeding of broilers, has become an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a cottonseed meal fermented feed for improving the muscle quality of broilers, a preparation method and an application thereof, which has a high cottonseed meal content and has an unexpected effect of improving the muscle quality of broilers.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] In a first aspect, the present invention discloses a cottonseed meal fermented feed for improving the muscle quality of broiler chickens, comprising the following raw materials in parts by weight: 40 to 60 parts of corn flour, 10 to 30 parts of bran, 25 to 35 parts of cottonseed meal fermentation product, 0.8 to 1.2 parts of stone powder, 0.8 to 1.2 parts of calcium hydrogen phosphate, 0.1 to 0.3 parts of trace element premix, 0.3 to 0.5 parts of lysine, and 0.1 to 0.3 parts of methionine.

[0008] Furthermore, the invention comprises the following raw materials in parts by weight: 45-55 parts of corn flour, 15-25 parts of bran, 28-32 parts of fermented cottonseed meal, 0.8-1.2 parts of stone powder, 0.9-1.1 parts of calcium hydrogen phosphate, 0.1-0.3 parts of trace element premix, 0.3-0.5 parts of lysine and 0.1-0.3 parts of methionine.

[0009] Furthermore, the invention comprises the following raw materials in parts by weight: 50 parts of corn flour, 20 parts of bran, 30 parts of fermented cottonseed meal, 1 part of stone powder, 1.0 part of calcium hydrogen phosphate, 0.2 part of trace element premix, 0.4 part of lysine and 0.2 part of methionine.

[0010] Furthermore, the cottonseed meal fermentation product is prepared by the following method:

[0011] S1. After the cottonseed meal is crushed, sodium hydroxide solution is added, stirred evenly, steam is passed through for 30 to 60 minutes, filtered, the filter residue is rinsed with water until neutral, and then a dilute acid solution is added, stirred evenly, Bacillus is added, and fermented at 25-35°C for 4 to 7 days to obtain the first fermentation material;

[0012] S2. Add corn flour and yeast to the first fermentation material, mix well, ferment again at 25-35° C. for 4-7 days, and dry to obtain cottonseed meal fermentation product.

[0013] Further, in S1, the cottonseed meal is crushed to 50-60 meshes, and then a sodium hydroxide solution with a concentration of 0.1-0.2 mol / L is added, and the mass ratio of the sodium hydroxide solution to the cottonseed meal is 2-3:1;

[0014] Add 0.0005-0.001 mol / L dilute hydrochloric acid solution to the neutral residue after washing, mix well, and make the water content of the residue 50-60%;

[0015] The added amount of Bacillus is 0.1-0.8% of the mass of the filter residue.

[0016] Furthermore, in S2, 25-35% of the mass of the first fermentation material is added with corn flour, and 0.3-0.5% of the mass of the total material is added with yeast.

[0017] Furthermore, the trace element premix is ​​prepared by adding trace elements to rice bran meal as a carrier, wherein the content of each trace element in the trace element premix is: copper 5-8g / kg, iron 40-60g / kg, manganese 30-50g / kg, zinc 40-80mg / kg.

[0018] In a second aspect, the present invention discloses a method for preparing a cottonseed meal fermented feed for improving the muscle quality of broiler chickens, comprising the following steps: preparing various raw materials in proportion, mixing them evenly, granulating, and drying to obtain the cottonseed meal fermented feed.

[0019] In a third aspect, the present invention discloses the application of the cottonseed meal fermented feed, which is used in the growth period and fattening period of broiler feed.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The invention has a scientific design and a scientific and reasonable compatibility. Broilers fed with the cottonseed meal fermented feed of the invention have better growth performance and have an unexpected effect of improving the muscle quality of broilers. DETAILED DESCRIPTION

[0022] In order to further illustrate the present invention, the cottonseed meal fermented feed and its application provided by the present invention are described in detail below in conjunction with the examples. It will be understood by those skilled in the art that the following examples are only used to illustrate the present invention and should not be regarded as limiting the scope of the present invention. If the specific conditions are not specified in the examples, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer of the reagents or instruments used is not specified, they are all conventional products that can be obtained commercially.

[0023] Example 1

[0024] This embodiment discloses a method for preparing a fermented cottonseed meal of the present invention, and the specific steps are as follows:

[0025] S1. After the cottonseed meal is crushed to 50-60 mesh, 0.1 mol / L sodium hydroxide solution is added and stirred evenly. The mass ratio of sodium hydroxide solution to cottonseed meal is 3:1.

[0026] Then, steam is passed through the mixture for 60 minutes, and the mixture is filtered. After the filter residue is rinsed with water until it becomes neutral, a 0.001 mol / L dilute acid solution is added, and the mixture is stirred evenly. The water content of the filter residue is 57%. Bacillus is added and the mixture is fermented at 25-35°C for 7 days to obtain the first fermentation material. The amount of Bacillus added is 0.5% of the mass of the filter residue.

[0027] S2. Add corn flour and yeast to the first fermentation material, mix well, ferment again at 25-35°C for 7 days, dry, and obtain cottonseed meal fermentation product. The amount of corn flour added is 30% of the mass of the fermentation material, and the amount of yeast added is 0.4% of the mass of the total material.

[0028] Example 2

[0029] This embodiment discloses a method for preparing a fermented cottonseed meal of the present invention, and the specific steps are as follows:

[0030] S1. After the cottonseed meal is crushed to 50-60 mesh, 0.2 mol / L sodium hydroxide solution is added and stirred evenly. The mass ratio of sodium hydroxide solution to cottonseed meal is 2:1.

[0031] Then, steam is passed through the mixture for 30 minutes, and the mixture is filtered. After the filter residue is rinsed with water until it becomes neutral, a 0.0005 mol / L dilute acid solution is added, and the mixture is stirred evenly. The water content of the filter residue is 50%. Bacillus is added and the mixture is fermented at 25-35°C for 4 days to obtain the first fermentation material. The amount of Bacillus added is 0.8% of the mass of the filter residue.

[0032] S2. Add corn flour and yeast to the first fermentation material, mix well, ferment again at 25-35°C for 4 days, dry, and obtain cottonseed meal fermentation product. The amount of corn flour added is 25% of the mass of the fermentation material, and the amount of yeast added is 0.5% of the mass of the total material.

[0033] Example 3

[0034] This embodiment discloses a method for preparing a fermented cottonseed meal of the present invention, and the specific steps are as follows:

[0035] S1. After the cottonseed meal is crushed to 50-60 mesh, 0.1 mol / L sodium hydroxide solution is added and stirred evenly. The mass ratio of sodium hydroxide solution to cottonseed meal is 2:1.

[0036] Then, steam is passed through the mixture for 45 minutes, and the mixture is filtered. After the filter residue is rinsed with water until it is neutral, a 0.001 mol / L dilute acid solution is added and stirred evenly. The water content of the filter residue is 60%. Bacillus is added and fermented at 25-35°C for 6 days to obtain the first fermentation material. The amount of Bacillus added is 0.1% of the mass of the filter residue.

[0037] S2. Add corn flour and yeast to the first fermentation material, mix well, ferment again at 25-35°C for 7 days, dry, and obtain cottonseed meal fermentation product. The amount of corn flour added is 35% of the mass of the fermentation material, and the amount of yeast added is 0.3% of the mass of the total material.

[0038] Example 4

[0039] This embodiment discloses the cottonseed meal fermented feed for improving the muscle quality of broiler chickens of the present invention, and its raw material composition is as follows: 50 parts of corn flour, 20 parts of bran, 30 parts of cottonseed meal fermentation product, 1 part of stone powder, 1.0 part of calcium hydrogen phosphate, 0.2 part of trace element premix, 0.4 part of lysine, and 0.2 part of methionine.

[0040] The cottonseed meal fermentation product is prepared according to the method of Example 1.

[0041] The trace element premix is ​​made by adding trace elements with rice bran meal as a carrier, wherein the content of each trace element in the trace element premix is: copper 8g / kg, iron 60g / kg, manganese 50g / kg, zinc 80mg / kg.

[0042] The method for preparing the cottonseed meal fermented feed of the present embodiment comprises the following steps: preparing various raw materials in proportion, mixing them evenly, granulating them, and drying them to obtain the cottonseed meal fermented feed.

[0043] Example 5

[0044] This embodiment discloses the cottonseed meal fermented feed for improving the muscle quality of broiler chickens of the present invention, and its raw material composition is as follows: 40 parts of corn flour, 30 parts of bran, 35 parts of cottonseed meal fermentation product, 1.2 parts of stone powder, 1.2 parts of calcium hydrogen phosphate, 0.1 parts of trace element premix, 0.5 parts of lysine, and 0.3 parts of methionine.

[0045] The cottonseed meal fermentation product is prepared according to the method of Example 2.

[0046] The trace element premix is ​​made by adding trace elements with rice bran meal as a carrier, wherein the content of each trace element in the trace element premix is: copper 5g / kg, iron 50g / kg, manganese 40g / kg, zinc 40mg / kg.

[0047] The method for preparing the cottonseed meal fermented feed of the present embodiment comprises the following steps: preparing various raw materials in proportion, mixing them evenly, granulating them, and drying them to obtain the cottonseed meal fermented feed.

[0048] Example 6

[0049] This embodiment discloses the cottonseed meal fermented feed for improving the muscle quality of broiler chickens of the present invention, and its raw material composition is as follows: 45 parts of corn flour, 10 parts of bran, 25 parts of cottonseed meal fermentation product, 0.8 parts of stone powder, 0.8 parts of calcium hydrogen phosphate, 0.3 parts of trace element premix, 0.3 parts of lysine, and 0.1 parts of methionine.

[0050] The cottonseed meal fermentation product is prepared according to the method of Example 3.

[0051] The trace element premix is ​​made by adding trace elements with rice bran meal as a carrier, wherein the content of each trace element in the trace element premix is: copper 6g / kg, iron 40g / kg, manganese 30g / kg, zinc 60mg / kg.

[0052] The method for preparing the cottonseed meal fermented feed of the present embodiment comprises the following steps: preparing various raw materials in proportion, mixing them evenly, granulating them, and drying them to obtain the cottonseed meal fermented feed.

[0053] Comparative Example 1

[0054] Compared with Example 4, this comparative example replaces the cottonseed meal fermented product in the cottonseed meal fermented feed with soybean meal, and other conditions are the same.

[0055] Comparative Example 2

[0056] Compared with Example 4, in the preparation of the cottonseed meal fermentation product, only step S1 is included, and step S2 is omitted, and the other conditions are the same.

[0057] Test Example 1

[0058] This test example discloses the application of the cottonseed meal fermented feed of the present invention. A 22-day feeding test was conducted on 14-day-old broilers using the cottonseed meal fermented feed of Example 4, the feed of Comparative Example 1, and the feed of Comparative Example 2, respectively. During the test, the broilers were allowed to eat and drink freely. A total of 600 broilers were randomly divided into groups, with 200 broilers in each group.

[0059] The results showed that the average body weight of the broilers fed with the fermented cottonseed meal feed of Example 4 was higher than that of Comparative Examples 1 and 2 at the end of the experiment, indicating that the broilers fed with the fermented cottonseed meal feed of the present invention had better growth performance.

[0060] The pH values ​​of the breast muscles of broilers fed with the cottonseed meal fermented feed of Example 4 at 15 minutes and 24 hours were better than those of Comparative Examples 1 and 2, with less drip loss and less cooking loss, indicating that broilers fed with the cottonseed meal fermented feed of the present invention have an unexpected effect of improving the muscle quality of broilers.

[0061] The above embodiments are only used to help understand the method and core idea of ​​the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A cottonseed meal fermented feed for improving broiler muscle quality, characterized in that: The invention comprises the following raw materials in parts by weight: 40-60 parts of corn flour, 10-30 parts of bran, 25-35 parts of fermented cottonseed meal, 0.8-1.2 parts of stone powder, 0.8-1.2 parts of calcium hydrogen phosphate, 0.1-0.3 parts of trace element premix, 0.3-0.5 parts of lysine and 0.1-0.3 parts of methionine.

2. The cottonseed meal fermented feed for improving broiler muscle quality according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 45-55 parts of corn flour, 15-25 parts of bran, 28-32 parts of fermented cottonseed meal, 0.8-1.2 parts of stone powder, 0.9-1.1 parts of calcium hydrogen phosphate, 0.1-0.3 parts of trace element premix, 0.3-0.5 parts of lysine and 0.1-0.3 parts of methionine.

3. The cottonseed meal fermented feed for improving broiler muscle quality according to claim 1, characterized in that: The invention comprises the following raw materials in parts by weight: 50 parts of corn flour, 20 parts of bran, 30 parts of fermented cottonseed meal, 1 part of stone powder, 1.0 part of calcium hydrogen phosphate, 0.2 part of trace element premix, 0.4 part of lysine and 0.2 part of methionine.

4. A cottonseed meal fermented feed for improving broiler muscle quality according to any one of claims 1 to 3, characterized in that: The cottonseed meal fermentation product is prepared as follows: S1. After the cottonseed meal is crushed, sodium hydroxide solution is added, stirred evenly, steam is passed through for 30 to 60 minutes, filtered, the filter residue is rinsed with water until neutral, and then a dilute acid solution is added, stirred evenly, Bacillus is added, and fermented at 25-35°C for 4 to 7 days to obtain the first fermentation material; S2. Add corn flour and yeast to the first fermentation material, mix well, ferment again at 25-35° C. for 4-7 days, and dry to obtain cottonseed meal fermentation product.

5. The cottonseed meal fermented feed for improving broiler muscle quality according to claim 4, characterized in that: In S1, the cottonseed meal is crushed into 50-60 meshes, and then a sodium hydroxide solution with a concentration of 0.1-0.2 mol / L is added, and the mass ratio of the sodium hydroxide solution to the cottonseed meal is 2-3:1; Add 0.0005-0.001 mol / L dilute hydrochloric acid solution to the neutral residue after washing, mix well, and make the water content of the residue 50-60%; The added amount of Bacillus is 0.1-0.8% of the mass of the filter residue.

6. The cottonseed meal fermented feed for improving broiler muscle quality according to claim 4, characterized in that: In S2, 25-35% of the mass of the first fermentation material is added with corn flour, and 0.3-0.5% of the mass of the total material is added with yeast.

7. The cottonseed meal fermented feed for improving broiler muscle quality according to any one of claims 1 to 3, characterized in that: The trace element premix is ​​prepared by adding trace elements with rice bran meal as a carrier, wherein the content of each trace element in the trace element premix is: 5-8g / kg copper, 40-60g / kg iron, 30-50g / kg manganese, and 40-80mg / kg zinc.

8. The method for preparing a cottonseed meal fermented feed for improving broiler muscle quality according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: preparing various raw materials in proportion, mixing them evenly, granulating them, and drying them to obtain the cottonseed meal fermented feed.

9. The use of cottonseed meal fermented feed according to any one of claims 1 to 7, characterized in that: Used in broiler feed during the growing and fattening periods.