Preparation method and application of feed for improving mutton quality by utilizing scutellaria baicalensis straws

Abstract

The invention relates to the technical field of ruminant feed processing technologies and application, in particular to a preparation method and application of a feed for improving mutton quality by using scutellaria baicalensis straws. Comprising the following raw materials in percentage by mass: 5%-16% of alfalfa hay, 2%-26% of wheat straw, 32%-37% of corn, 12%-17% of cottonseed meal, 5%-8% of wheat bran, 1%-2% of sodium bicarbonate, 0.5%-1% of table salt, 1%-2% of mineral vitamin compound premix and 4%-32% of scutellaria baicalensis straw. The radix scutellariae straw is used as a coarse feed component in the mutton sheep feed for application, on the basis of improving the growth performance of mutton sheep, the content of cholesterol in mutton is reduced, the cooked meat rate is increased, the content of inosinic acid, essential amino acid and unsaturated fatty acid in the mutton is increased, and the flavor and processing quality of the mutton are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of ruminant feed processing technology and application field, and specifically to a feed preparation method and application for improving mutton quality by utilizing scutellaria baicalensis straw. Background Art

[0002] As the pressure to solve the problems of bacterial resistance and drug residues increases, the role of Chinese herbal medicine in animal husbandry is becoming more and more important. Scutellaria baicalensis is a herb with high medicinal value, and Scutellaria baicalensis straw is the above-ground part of the Scutellaria baicalensis plant without the root of the medicinal part. The annual output of Scutellaria baicalensis straw in my country is about 63,000 tons, and its development and utilization value is very considerable. The main chemical components of Scutellaria baicalensis root and Scutellaria baicalensis straw are similar, and they are also rich in a variety of flavonoid compounds, which can not only improve the antioxidant capacity and immune performance, but also significantly improve the quality of animal meat.

[0003] At present, most studies focus on the application of scutellaria root extract and scutellaria straw extract in animal husbandry production. Tian Huili et al. found that adding 250 mg / kg of scutellaria root extract to the diet can significantly improve the growth performance, immune performance and meat quality of meat ducks. Han Qiang et al. found that adding 500 mg / kg of scutellaria root extract to the diet can improve the antioxidant and immune function of laying hens, thereby improving production performance and egg quality, and can improve the lipid metabolism of laying hens and reduce the cholesterol content of egg yolks. Scutellaria straw extract has the effects of promoting growth, inhibiting bacteria and inflammation, and improving immunity on brown basket fish. At present, the utilization of scutellaria straw as feed has only been studied and applied in broilers and beef cattle. Yue Caijuan et al. found that micro-storage fermentation can prolong the shelf life of scutellaria straw, and the sensory evaluation of scutellaria straw silage is good, and the silage quality is rated as excellent. Hu Huiling et al. added fermented Scutellaria baicalensis straw to broiler diets and found that it significantly increased average daily weight gain, reduced feed-to-weight ratio, improved apparent digestibility, and increased broiler immune performance. Gao Xuhong et al. showed that adding 6% to 9% of Scutellaria baicalensis straw had no significant effect on the liver and kidney functions of Simmental crossbred cattle, and had the effects of promoting protein synthesis and metabolism, enhancing immunity and antioxidant capacity. At present, due to the in-depth and insufficient development of Scutellaria baicalensis straw resources in feed utilization, most of the Scutellaria baicalensis straw has not been effectively utilized. In view of its good "dual use of medicine and food", whether an appropriate amount of Scutellaria baicalensis straw can be added to the diet as a functional feed to regulate the production of functional livestock products and improve meat products will become the main research trend for the subsequent exploration of the feed utilization of Chinese herbal medicine by-products such as Scutellaria baicalensis straw in animal husbandry production. Summary of the invention

[0004] The purpose of the present invention is to provide a method for preparing feed using Scutellaria baicalensis straw to improve the quality of mutton and its application, so as to solve the problems in the current market raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a feed for improving the quality of mutton using scutellaria baicalensis straw, comprising the following raw materials in percentage by weight: 5% to 16% alfalfa hay, 2% to 26% wheat straw, 32% to 37% corn, 12% to 17% cottonseed meal, 5% to 8% wheat bran, 1% to 2% sodium bicarbonate, 0.5% to 1% salt, 1% to 2% mineral vitamin composite premix and 4% to 32% scutellaria baicalensis straw.

[0006] Preferably, the mixture comprises 5% to 13% alfalfa hay, 2% to 17% wheat straw, 32% to 36% corn, 12% to 17% cottonseed meal, 5% to 8% wheat bran, 1% to 2% sodium bicarbonate, 0.5% to 1% salt, 1% to 2% mineral vitamin composite premix and 10% to 32% scutellaria baicalensis straw.

[0007] Preferably, the mixture comprises 8% to 11% alfalfa hay, 5% to 11% wheat straw, 32% to 35% corn, 12% to 16% cottonseed meal, 6% to 8% wheat bran, 1% to 2% sodium bicarbonate, 0.5% to 1% salt, 1% to 2% mineral vitamin composite premix and 16% to 25% scutellaria baicalensis straw.

[0008] Preferably, the mixture comprises 9% to 10% alfalfa hay, 6% to 10% wheat straw, 33% to 34% corn, 13% to 15% cottonseed meal, 7% to 8% wheat bran, 1% to 2% sodium bicarbonate, 0.5% to 1% salt, 1% to 2% mineral vitamin composite premix and 20% to 25% scutellaria baicalensis straw.

[0009] Preferably, in the mineral-vitamin composite premix, the vitamins include one or more of vitamin A (VA), vitamin D3 (VD3) and vitamin E (VE), and the minerals include one or more of selenium (Se), iodine (I), copper (Cu), manganese (Mn), zinc (Zn) and cobalt (Co).

[0010] Preferably, based on 1 kg of the composite premix, VA≥15000 IU, VD333000-80000 IU, VE≥800.0 I, Se8.0-20.0 mg, I15.0-100.0 mg, Cu80.0-500.0 mg, Mn850-3000 mg, Zn1100-3000 mg and Co8.0-24.0 mg.

[0011] A method for preparing feed for improving mutton quality by using scutellaria baicalensis straws, the preparation method comprises the following steps: fully mixing alfalfa hay, wheat straws, corn, cottonseed meal, wheat bran, sodium bicarbonate, salt, mineral vitamin composite premix and scutellaria baicalensis straws.

[0012] Preferably, before the mixing, the alfalfa hay, wheat straw and scutellaria baicalensis straw are pulverized to obtain coarse material. The present invention has no special requirements on the pulverization method, and the pulverized particle size is required to be 1-4 cm, more preferably 1.8-3.2 cm, more preferably 2-3 cm, and preferably a pulverizer is used; Mixing the crushed coarse materials to obtain a coarse material mixture; The crushed coarse materials are mixed to obtain a coarse material mixture. The present invention has no requirement on the mixing method, as long as sufficient mixing is ensured, and preferably a TMR mixer is used.

[0013] The corn, wheat bran, cottonseed meal, salt, sodium bicarbonate, and complex vitamin and mineral premix are mixed to obtain a concentrate mixture. The present invention has no requirements on the mixing method, and sufficient mixing is sufficient. Preferably, a concentrate mixer is used.

[0014] Preferably, the obtained concentrate mixture is mixed with the coarse mixture again to obtain the feed. The mixing method of the present invention is preferably stirring, and the stirring time is preferably 40-60 min, more preferably 45-55 min, and more preferably 48-50 min. The mixer of the present invention preferably uses a TMR mixer. The mixing method of the present invention allows the feed raw materials to be mixed evenly. The present invention uses a pellet feed pelletizer to make the above-mentioned mixture into a pellet feed. The present invention has no requirements for the pelletizer, but has special requirements for the pellet size. The preferred particle size is 0.5~1.6 cm, more preferably 0.6~1.2 cm, and most preferably 0.7~1.1 cm; The mixture is made into pellet feed by a pellet feed pelletizing machine, and the particle size is 0.5-1.6 cm.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The feed preparation method is fast and convenient, and is suitable for areas with a large Scutellaria baicalensis planting area. The feed prepared by the present invention can improve the tenderness of mutton, increase the content of inosinic acid, amino acids and unsaturated fatty acids, and reduce the content of saturated fatty acids, cholesterol and thiamine without negatively affecting the production performance of mutton. Therefore, the use of the feed of the present invention in improving the production performance of mutton and / or improving the quality of mutton also falls within the scope of protection of this patent.

[0016] The results of the examples of the present invention show that the feed prepared according to the technical scheme of the present invention can improve the tenderness of mutton, increase the content of inosinic acid, amino acids and unsaturated fatty acids, reduce the content of saturated fatty acids, cholesterol and thiamine, and improve the quality of mutton without negatively affecting the production performance of mutton sheep. Among them, the best effect is achieved when the addition amount of Scutellaria baicalensis straw reaches 20%-25%.

[0017] At present, the research on Scutellaria baicalensis straw is only on beef cattle and broiler chickens, and there is no research on its effect on sheep production performance, nor is there any related development and utilization of its rich amino acid composition and active substances to improve meat quality. The present invention uses Scutellaria baicalensis straw as a roughage component in sheep feed. On the basis of improving the growth performance of sheep, it reduces the cholesterol content of mutton, increases the cooked meat rate and the content of inosinic acid, essential amino acids and unsaturated fatty acids in the meat, and effectively improves the flavor and processing quality of mutton. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the nutrient level (dry matter basis) of feed in different treatment groups of the present invention; Figure 2 This is a schematic diagram showing the effects of different treatment groups of the present invention on the feed intake and daily weight gain of mutton sheep; Figure 3 This is a schematic diagram of slaughter performance of mutton sheep in different treatment groups of the present invention; Figure 4 This is a schematic diagram of the edible quality of the longissimus dorsi muscle of mutton sheep in different treatment groups of the present invention; Figure 5 This is a schematic diagram of the conventional nutritional content of the longissimus dorsi muscle of mutton sheep in different treatment groups of the present invention; Figure 6 This is a schematic diagram of the content of flavor substances in the longissimus dorsi muscle of mutton sheep in different treatment groups of the present invention; Figure 7 This is a schematic diagram of the fatty acid content of the longissimus dorsi muscle of mutton sheep in different treatment groups of the present invention; Figure 8 This is a schematic diagram of the amino acid content of the longissimus dorsi muscle of mutton sheep in different treatment groups of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention provides a technical solution: a method for preparing feed using scutellaria baicalensis straw to improve the quality of mutton and its application, which is as follows: Example

[0021] 1. Weigh the raw material components according to the following mass percentage (based on dry matter): Alfalfa hay 13.42%, wheat straw 20.57%, scutellaria straw 6.00%, corn 33.73%, wheat bran 7.19%, cottonseed meal 14.96%, salt 1.00%, sodium bicarbonate 1.61%, multivitamin mineral premix 1.5%.

[0022] 2. The preparation steps are as follows: (1) Alfalfa hay, wheat straw, and Scutellaria baicalensis straw are crushed into coarse materials using a grinder with a particle size of 2-3 cm.

[0023] (2) Pour the coarse material obtained in step (1) into a TMR mixer for mixing to obtain a coarse material mixture.

[0024] (3) Add corn, wheat bran, cottonseed meal, salt, sodium bicarbonate and complex vitamin and mineral premix into a concentrate mixer and mix them to obtain a concentrate mixture.

[0025] (4) The roughage mixture and the concentrate mixture obtained in step (2) and step (3) are placed in a TMR automatic mixer and mixed for 40 to 60 minutes. After mixing, the mixture is made into a fully mixed pellet feed with a particle size of 0.8 cm by a pellet feed pelletizer. Example

[0026] Same as Example 1, except that step 1. weigh the raw material components according to the following mass percentage (based on dry matter): Alfalfa hay 12.34%, wheat straw 15.66%, scutellaria straw 12.00%, corn 33.83%, wheat bran 7.17%, cottonseed meal 14.88%, salt 1.00%, sodium bicarbonate 1.61%, multivitamin mineral premix 1.50%. Example

[0027] Same as Example 1, except that step 1. weigh the raw material components according to the following mass percentage (based on dry matter): Alfalfa hay 10.88%, wheat straw 11.11%, scutellaria straw 18.00%, corn 33.74%, wheat bran 7.23%, cottonseed meal 14.92%, salt 1.00%, sodium bicarbonate 1.61%, multivitamin mineral premix 1.50%. Example

[0028] Same as Example 1, except that step 1. weigh the raw material components according to the following mass percentage (based on dry matter): Alfalfa hay 9.47%, wheat straw 6.54%, scutellaria straw 24.00%, corn 33.73%, wheat bran 7.18%, cottonseed meal 14.97%, salt 1.00%, sodium bicarbonate 1.61%, multivitamin mineral premix 1.50%. Example

[0029] Same as Example 1, except that step 1. weigh the raw material components according to the following mass percentage (based on dry matter): Alfalfa hay 7.82%, wheat straw 2.18%, scutellaria straw 30.00%, corn 33.72%, wheat bran 7.03%, cottonseed meal 15.14%, salt 1.00%, sodium bicarbonate 1.61%, multivitamin mineral premix 1.50%.

[0030] Comparative Example Same as Example 1, except that step 1. weigh the raw material components according to the following mass percentage (based on dry matter): Alfalfa hay 14.73%, wheat straw 25.28%, corn 33.74%, wheat bran 7.18%, cottonseed meal 14.96%, salt 1.00%, sodium bicarbonate 1.61%, multivitamin mineral premix 1.50%.

[0031] Test example From September to December 2023, the test was conducted at the fattening sheep farm of Xinjiang Bayinguoleng Mongolian Autonomous Prefecture Animal Husbandry Co., Ltd. The test adopted a single-factor randomized experimental design, and 60 fattening mutton lambs weighing (27.08±3.12) kg and aged (4-5) were selected. According to the principle of similar weight, they were randomly divided into 6 groups, with 10 in each group. The test period was 80 days, including a pre-test period of 10 days and a full test period of 70 days. The pens and test sheep were disinfected and dewormed before the start of the test.

[0032] The control group (comparative ratio) was fed with a complete mixed pellet feed, and the experimental groups (6% group (Example 1), 12% group (Example 2), 18% group (Example 3), 24% group (Example 4), and 30% group (Example 5)) were respectively fed with an isoenergetic and isonitrogenous complete mixed pellet feed containing 6%, 12%, 18%, 24% and 30% Scutellaria baicalensis straw (dry matter basis), and the rats were free to eat and drink during the experiment to ensure that the amount of residual feed was between 5% and 15%.

[0033] The crude protein, neutral detergent fiber, acid detergent fiber, calcium, and total phosphorus contents of the feeds prepared according to Examples 1 to 5 and the comparative example were measured to determine the nutritional levels of the different feeds. The results are as follows: Figure 1 .

[0034] 3. Specific application methods: During the feeding period, the daily feed intake and residual feed amount of each group of experimental sheep were recorded every day. The sheep were weighed on an empty stomach before morning feeding on the 0th day of the formal feeding period (the 10th day of the pre-feeding period), 30 days, and 60 days. The average daily feed intake and average daily weight gain were calculated according to the following formula: Average daily feed intake (kg / d) = (dry matter mass of feed per group per day - dry matter mass of residual feed per group per day) / number of sheep in each group; Average daily weight gain (g) = (final weight of each sheep - initial weight of each sheep) / number of test days; After the above data on the feed intake and daily weight gain of the mutton sheep were statistically analyzed, the effects of different treatment groups (the feed of the present invention) on the growth performance of the mutton sheep were evaluated. The results are shown below Figure 2 .

[0035] After the formal feeding, 5 mutton sheep with a weight close to the average weight of the group were randomly selected from each group for slaughter. The carcass weight was weighed to calculate the slaughter rate. The carcass was divided into left and right halves. The pH, eye muscle area and GR value of the left half of the carcass were measured, and then 500g of the longest back muscle sample was collected to measure the following indicators: (1) The edible quality of mutton shall be determined according to the method of NY / T2793-2015; (2) The conventional nutritional components of mutton are determined according to GB5009.3-2016 (direct drying method), GB5009.5-2016 (Kjeldahl nitrogen determination method), GB5009.6-2016 (Soxhlet extraction method) and GB5009.4-2016 (determination of total ash in food); (3) The content of mutton flavor substances shall be determined according to GB5009.84-2016, GB5009.128-2016 and T / NAIA003-2020 methods; (4) The fatty acid content of mutton shall be determined by referring to the internal standard method in GB5009.168-2016; (5) The amino acid content of mutton was quantitatively determined using liquid chromatography-mass spectrometry.

[0036] After the determination was completed, the effects of different treatment groups (the feed of the present invention) on the quality of mutton were evaluated, and the results were shown in Figure 2-8 shown.

[0037] 2. Evaluation of the application effect of the feed of the present invention 1. Effects of different treatment groups on the growth performance of mutton sheep, see Figure 2 ,according to Figure 2 It can be seen that the average daily weight gain of Example 4 is significantly higher than that of the control example, and the feed-to-weight ratio is significantly lower than that of the control example and Example 5; the average daily weight gain of the embodiments is higher than that of the control example, and the feed-to-weight ratio is lower than that of the control example. It can be seen that the feed of the present invention can increase the average daily weight gain of mutton sheep, reduce the feed-to-weight ratio, and help improve the production performance of mutton sheep.

[0038] 2. Effects of different treatment groups on slaughter performance of mutton sheep, see Figure 3 The slaughter rate of animals can directly observe the meat production capacity of livestock and can be used to evaluate the impact of factors such as feeding methods on meat production capacity. The eye muscle area has a strong correlation with the meat production performance of livestock and can predict the meat production performance of livestock before slaughter. The GR value can reflect the fat content of the carcass. Figure 3 It can be seen that the slaughter rate of Example 4 is significantly improved compared with the control example; the eye muscle area and GR value of Examples 1 to 4 are higher than those of the control example, indicating that the use of the feed of the present invention has a positive effect on the slaughter performance of sheep.

[0039] 3. Effects of different treatment groups on the edible quality of longissimus dorsi muscle of mutton sheep, see Figure 4 The pH of meat can well reflect its storage characteristics. The pH of fresh meat just slaughtered is between 6 and 7, and that of frozen meat is 5.1 to 5.6. A higher pH is not conducive to the storage and preservation of meat, and is also related to the palatability, tenderness and cooking loss of meat. The water loss rate and cooked meat rate can reflect the water retention performance of meat and are important indicators for evaluating the quality of meat processing. Figure 4 It can be seen that all embodiments of the present invention can reduce the water loss rate of meat, among which embodiments 1 to 4 can improve the cooked meat rate and pH, indicating that feeding the feed of the present invention to sheep can improve the processing quality and storage and transportation quality of mutton, but the pH and cooked meat rate of Example 5 are lower than those of the comparative example, indicating that feeding the feed of the present invention to sheep has a certain degree of tolerance.

[0040] 4. Effects of different treatment groups on the content of conventional nutrients in the longissimus dorsi muscle of mutton sheep, see Figure 5 The nutritional value of meat directly affects its health function. Meat food provides the human body with essential nutrients such as high-quality protein, fatty acids and minerals, so the content of its nutrients will directly affect the quality of meat. Figure 5 It can be seen that the moisture content of the embodiments of the present invention is lower than that of the comparative example, and the protein content of embodiment 4 is significantly increased compared with the comparative example, indicating that feeding embodiment 4 of the present invention to sheep can increase the dry matter and protein content of mutton.

[0041] 5. Effects of different treatment groups on the content of flavor substances in the longissimus dorsi muscle of mutton sheep, see Figure 6The cholesterol content in meat is an important factor affecting the taste and flavor. When the cholesterol content is high, the meat will taste greasy. Long-term intake will have an adverse effect on human health. Thiamine is a sulfur- and nitrogen-containing bicyclic compound. It is also a flavor precursor. When heated, it degrades to produce a variety of sulfur- and nitrogen-containing volatile flavor substances. The thiamine degradation products themselves contain fragrance and can also react with other substances to produce more volatile flavor compounds. Inosinic acid is an important flavor substance in animal tissues and the main component of the umami taste of meat. It is an important indicator for measuring the flavor of meat. Figure 6 It can be seen that in the feed of the present invention, the cholesterol content of Examples 1 to 4 is lower than that of the comparative example, the thiamine content of Examples 3 and 4 is lower than that of the comparative example, and the inosinic acid content of all examples is higher than that of the comparative example, among which the inosinic acid content of Examples 3 and 4 is significantly higher than that of the comparative example. It can be seen that the present invention can reduce the cholesterol and thiamine contents in mutton, increase the inosinic acid content, and improve the flavor quality of mutton.

[0042] 6. Effects of different treatment groups on fatty acid content of longissimus dorsi muscle of mutton sheep, see Figure 7 The type and composition of fatty acids are important components that determine the flavor of meat and are important indicators for evaluating the nutritional value of muscle. Fatty acids are mainly divided into saturated fatty acids and unsaturated fatty acids. Unsaturated fatty acids are easily oxidized by heat due to the presence of double bonds to produce compounds with flavor characteristics such as aldehydes, esters, ketones and hydrocarbons. During the heating process of mutton, fatty acids will produce volatile aromatic fat oxidation products, which have an important influence on the flavor of mutton. Among them, linolenic acid is an essential fatty acid that cannot be synthesized by the human body and is mainly involved in the growth and metabolism of the body. In addition, saturated fatty acids are easily converted into cholesterol after being ingested by the body, which increases the cholesterol level in the blood and can easily cause obesity and cardiovascular disease; while the intake of unsaturated fatty acids will promote the fluidity and permeability of the body's cell membranes, help enhance cell metabolism and immune function. Figure 7 It can be seen that both capric acid and palmitic acid are saturated fatty acids, among which the capric acid content in the comparative example, embodiments 1, 2 and 5 is significantly higher than that in embodiments 3 and 4, and the palmitic acid content in all embodiments is extremely significantly lower than that in the comparative example; the linolenic acid content in embodiments 1 to 4 is significantly higher than that in the comparative example; the unsaturated fatty acid content in embodiments 1 to 4 is higher than that in the comparative example, but the unsaturated fatty acid content in embodiment 5 is lower than that in the comparative example. At the same time, the ratio of saturated fatty acids to unsaturated fatty acids in the comparative example is higher than that in embodiments 1 to 4, indicating that feeding the feed of the embodiments of the present invention, especially embodiments 3 and 4, to sheep is helpful to increase the level of unsaturated fatty acids in meat and improve the quality of mutton, but feeding too much may have the opposite effect.

[0043] 7. Effects of different treatment groups on the amino acid content of longissimus dorsi muscle of mutton sheep, see Figure 8There are five main amino acids that play a key role in the flavor of meat: threonine, alanine, glutamic acid, lysine and cysteine. Amino acids are flavor precursors in the formation of meat flavor. During the cooking process of mutton, they undergo Maillard reactions with reducing sugars and interact with oils, which are the main factors in the formation of meat flavor. In addition, the composition and content of amino acids are closely related to the quality of meat protein. Among them, essential amino acids cannot be synthesized by the human body and must be obtained from food. Therefore, the higher the content of essential amino acids in meat products, the higher its nutritional value. Figure 8 It can be seen that the serine content of Example 4 is significantly higher than that of the comparative example and Example 5; the ornithine content of Example 4 is significantly higher than that of the comparative example, Examples 1, 2 and 5; the lysine content of Example 4 is significantly higher than that of the comparative example; the tyrosine content of Examples 3 and 4 is significantly higher than that of Example 5; the tryptophan content of Example 4 is extremely significantly higher than that of the comparative example; the flavor amino acid level of Example 4 is the highest, followed by Examples 1 and 3; the essential amino acid content of Example 4 is significantly higher than that of the comparative example; and the total amino acid level of Examples 3 and 4 is higher than that of the comparative example. It is shown that feeding Examples 3 and 4 of the present invention to sheep is helpful to improve the flavor and amino acid level of mutton.

[0044] The above descriptions are all embodiments of the present invention and are not intended to limit the scope of use of the present invention. Users may obtain other embodiments by referring to the embodiments of the present invention without inventiveness, including any modifications, replacements, improvements, etc. made to all embodiments of the present invention, which are within the protection scope of the present invention.

Claims

1. A feed for improving mutton quality using Scutellaria baicalensis straw, characterized in that: The invention comprises the following raw materials in percentage by weight: 5% to 16% alfalfa hay, 2% to 26% wheat straw, 32% to 37% corn, 12% to 17% cottonseed meal, 5% to 8% wheat bran, 1% to 2% sodium bicarbonate, 0.5% to 1% salt, 1% to 2% mineral vitamin compound premix and 4% to 32% scutellaria baicalensis straw.

2. The feed for improving mutton quality using Scutellaria baicalensis straw according to claim 1, characterized in that: The invention comprises 5% to 13% alfalfa hay, 2% to 17% wheat straw, 32% to 36% corn, 12% to 17% cottonseed meal, 5% to 8% wheat bran, 1% to 2% sodium bicarbonate, 0.5% to 1% table salt, 1% to 2% mineral vitamin compound premix and 10% to 32% scutellaria baicalensis straw.

3. The feed for improving mutton quality using Scutellaria baicalensis straw according to claim 1, characterized in that: The invention comprises 8% to 11% alfalfa hay, 5% to 11% wheat straw, 32% to 35% corn, 12% to 16% cottonseed meal, 6% to 8% wheat bran, 1% to 2% sodium bicarbonate, 0.5% to 1% table salt, 1% to 2% mineral vitamin compound premix and 16% to 25% scutellaria baicalensis straw.

4. The feed for improving mutton quality using Scutellaria baicalensis straw according to claim 1, characterized in that: The invention comprises 9% to 10% alfalfa hay, 6% to 10% wheat straw, 33% to 34% corn, 13% to 15% cottonseed meal, 7% to 8% wheat bran, 1% to 2% sodium bicarbonate, 0.5% to 1% salt, 1% to 2% mineral vitamin compound premix and 20% to 25% scutellaria baicalensis straw.

5. The feed for improving mutton quality using Scutellaria baicalensis straw according to claim 1, characterized in that: In the mineral-vitamin composite premix, the vitamins include one or more of vitamin A (VA), vitamin D3 (VD3) and vitamin E (VE), and the minerals include one or more of selenium (Se), iodine (I), copper (Cu), manganese (Mn), zinc (Zn) and cobalt (Co).

6. The feed for improving mutton quality using Scutellaria baicalensis straw according to claim 1, characterized in that: Based on 1 kg of the composite premix, VA≥15000 IU, VD333000-80000 IU, VE≥800.0 I, Se8.0-20.0 mg, I15.0-100.0 mg, Cu80.0-500.0 mg, Mn850-3000 mg, Zn1100-3000 mg and Co8.0-24.0 mg.

7. A method for preparing feed for improving mutton quality by using Scutellaria baicalensis straw, characterized in that: The method according to any one of claims 1 to 6 has the following steps: fully mixing the alfalfa hay, wheat straw, corn, cottonseed meal, wheat bran, sodium bicarbonate, salt, mineral vitamin composite premix and scutellaria baicalensis straw.

8. The method for preparing a feed for improving mutton quality by using Scutellaria baicalensis straw according to claim 1, characterized in that: Before the mixing, the alfalfa hay, wheat straw and scutellaria straw are respectively pulverized to obtain coarse material, and the pulverized particle size is required to be 1-4 cm; Mixing the crushed coarse materials to obtain a coarse material mixture; The corn, wheat bran, cottonseed meal, salt, sodium bicarbonate, and complex vitamin and mineral premix are mixed to obtain a concentrate mixture.

9. The method for preparing a feed for improving mutton quality by using scutellaria baicalensis straw according to claim 1, characterized in that: The obtained concentrate mixture is mixed with the coarse mixture again to obtain the feed, and the mixing time is 40-60 minutes; The mixture is made into pellet feed by a pellet feed pelletizing machine, and the particle size is 0.5~1.6cm.

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