KR20220071760A - A feed additive for improving meat quality comprising emulsifier and steviol glycoside, a feed composition and a breeding method using the same - Google Patents

Abstract

The present invention relates to a feed additive for improving poultry meat quality including an emulsifier and steviol glycosides as active ingredients, and a feed composition and a breeding method using the same. Specifically, the present invention uses a mixture of an emulsifier and steviol glycosides as a feed additive and by doing so, it is possible to improve poultry growth, reduce feed conversion rate and increase energy digestibility in feed. It is also possible to reduce juice loss and heating loss, effectively improve poultry production, and improve meat quality by providing high-quality poultry meat with improved texture. Thus, the present invention can contribute to the improvement of the economic feasibility of the food industry using poultry meat as a raw material.

Description

A feed additive for improving meat quality of poultry, comprising an emulsifier and steviol glycoside as an active ingredient, and a feed composition and breeding method using the same }

The present invention relates to a feed additive for improving poultry meat quality comprising an emulsifier and a steviol glycoside as active ingredients, a feed composition using the same, and a breeding method.

Meat consumption is on the rise due to the increase in people's income and the westernization of dietary life. As well-being culture develops, domestic chicken consumption as a low-fat, low-cholesterol, high-protein food is also continuously increasing. In particular, samgyetang and baeksuk, which are unique Korean chicken dishes, are the best nutritious food in summer as a health food. Samgyetang, a health food with a balanced nutritional balance of chicken, ginseng, jujube, chestnut, and garlic, has won even the taste of foreigners, and exports are increasing every year.

The types of samgyetang are divided into broiler samgyet, white ginseng ginseng, and native ginseng, and the taste differs depending on the characteristics of the chicken. In particular, the texture, fat content, and flavor of chicken meat vary depending on the species of chicken (Kweon et al., 1995). In Korea, the largest proportion (60 - 70%) of samgyetang chickens is white samgyetang. It is a hybrid of broiler breeders and laying hens. Compared to broilers and native chickens, it has a smaller physique, low fat, and high protein.

Poultry, such as chickens and ducks, is in the trend of commercialization and large-scale in recent years, and accordingly, research is being conducted on breeding methods to increase the growth rate of livestock and maintain their health while densely rearing them in a limited space. In this way, feed additives for healthy breeding of poultry are being studied, and these feed additives are for the purpose of preventing diseases of poultry and increasing production. Synthetic amino acids, vitamins, trace elements, antibiotics, enzymes New feed additives including , hormone secretion promotion, antioxidant, anthelmintic drug, fungicide and colorant are being developed in various forms.

On the other hand, the emulsifier acts to enhance the digestibility of fat, and acts to increase the digestibility of main nutrients that generate protein and energy.

In addition, steviol glycosides are sweet-tasting compounds, which are the main component of sweeteners, have a taste 30 to 32 times sweeter than sucrose, are stable to heat, are stable to pH, and are not fermented.

On the other hand, the emulsifiers and steviol glycosides as described above have never been used as feed additives for improving poultry meat quality.

Accordingly, the present inventors completed the present invention by confirming that feed additives containing an emulsifier and steviol glycosides have the effect of improving the meat quality and color characteristics of poultry, and can enhance the productivity of high-quality poultry meat along with the improvement of sensuality. .

Republic of Korea Patent Publication 10-2020-0040310

Accordingly, it is an object of the present invention to provide a feed additive for improving the meat quality of poultry, comprising an emulsifier and steviol glycoside as active ingredients.

Another object of the present invention is to provide a feed composition for poultry breeding comprising the feed additive of the present invention.

Another object of the present invention is to provide a poultry breeding method comprising the step of feeding the poultry feed composition of the present invention.

Another object of the present invention is to provide poultry meat with improved meat quality derived from poultry raised by the breeding method of the present invention.

In order to achieve the object of the present invention as described above, the present invention provides a feed additive for improving the quality of poultry, comprising an emulsifier and a steviol glycoside as active ingredients.

In one embodiment of the present invention, the poultry may be chicken, duck or turkey.

In one embodiment of the present invention, the emulsifier may be a lecithin emulsifier.

In one embodiment of the present invention, the mixing ratio of the emulsifier and the steviol glycoside may be 1:3 to 1:8 by weight.

In one embodiment of the present invention, the emulsifier may be contained in an amount of 0.1 to 0.2% by weight based on the total weight of the feed additive.

In one embodiment of the present invention, the steviol glycoside may be contained in an amount of 0.5 to 1.0% by weight based on the total weight of the feed additive.

In one embodiment of the present invention, the feed additive, weight gain of poultry; reduced feed consumption; increased digestibility of energy in feed; and reduced juice loss and heat loss; The effect can improve the meat quality of poultry.

The present invention also provides a feed composition for poultry breeding comprising the feed additive of the present invention.

The present invention also provides a method for breeding poultry, comprising the step of feeding the feed composition of the present invention to the poultry.

In addition, the present invention provides poultry meat with improved meat quality derived from poultry raised by the breeding method of the present invention.

The present invention can promote the growth of poultry by using a mixture of emulsifier and steviol glycoside as a feed additive, reduce feed demand and increase energy digestibility in feed, can reduce juice loss and heat loss, and effectively poultry meat It is possible to improve the production of poultry and to supply high-quality poultry meat with improved meat quality, thereby contributing to the economic feasibility of the food industry using poultry meat as a raw material.

The present invention is characterized by providing a feed additive for improving the meat quality of poultry comprising an emulsifier and a steviol glycoside as active ingredients.

Poultry meat consumption is rapidly increasing due to its low price and low fat content in the lean meat compared to other mammalian meats such as beef or pork. There is a need for the development of feed additives.

In this regard, the present invention has developed a feed additive containing both an emulsifier and a steviol glycoside as a new feed additive having both the effect of increasing the growth of poultry and improving the meat quality, and when using it, the poultry's weight increases, the feed consumption rate decreases, and the feed By confirming that it has the effect of increasing energy digestibility and reducing juice loss and heating loss, it can be usefully used to improve poultry productivity and meat quality, and it has been confirmed that it can be used safely without causing any side effects to poultry.

In the present invention, "poultry" refers to domestic flying animals, that is, birds.] In the present invention, the poultry may include, but is not limited to, chickens, ducks or turkeys. Preferably, in the present invention, the poultry may be a broiler.

The feed additive of the present invention includes an emulsifier and a steviol glycoside as an active ingredient.

In the present invention, the emulsifier (emulsifier) uses the property of emulsifying oil and water to reduce the surface tension between two substances that are difficult to mix with each other among the substances added to the feed, so that they can be evenly dispersed, and also in the feed. It also works to increase the availability of fat, which is an energy resource.

The type of the emulsifier that can be used in the present invention is not limited thereto, but may be lecithin, polysorbate, glycerin fatty acid ester or sucrose fatty acid ester. In an embodiment of the present invention, a lecithin emulsifier was used.

In addition, in the present invention, the steviol glycoside is a main component of a sweetener, which gives a sweet taste, is stable to heat, and is stable to pH. It does not induce a blood sugar reaction during digestion, so it is safe for broilers and laying hens, and has anti-inflammatory effects. In addition, steviol glycosides can improve the productivity of poultry by affecting fat and glucose metabolism, and can inhibit harmful microorganisms such as E. coli in the intestine.

Therefore, the feed additive of the present invention is a feed additive including both an emulsifier and a steviol glycoside, and the mixing ratio of the emulsifier and the steviol glycoside is 1:3 to 1:8 by weight.

If it is used in a mixing ratio outside the above range, it is important to use it within the above mixing ratio range because the effect of increasing the growth of poultry is insignificant and the effect of improving the meat quality is also insignificant. Preferably, the emulsifier and steviol glycoside are 1: 5 It can be used in mixing ratios.

In addition, the emulsifier may be included in an amount of 0.1 to 0.2% by weight based on the total weight of the feed additive, and the steviol glycoside may be included in an amount of 0.5 to 1.0% by weight based on the total weight of the feed additive.

In addition, the present invention can provide a feed composition for poultry breeding comprising the feed additive of the present invention.

In the present invention, the feed additive is preferably included in an amount of 0.01 to 1 part by weight based on 100 parts by weight of the total feed composition. By including the feed additive in the above range, there is an advantage that can effectively exhibit efficacy such as improvement of meat quality and growth ability.

The feed composition may include energy, amino acids, minerals, vitamins and water as essential nutrients that must be supplied from feed for maintenance and growth of poultry, in addition to the feed additives.

In addition, the present invention may provide a method for rearing poultry comprising the step of feeding the feed composition of the present invention to the poultry.

The feed composition comprising the feed additive for improving poultry meat quality of the present invention can be particularly fed to broilers, but is not limited thereto. By feeding the feed composition of the present invention to broilers, there is an advantage in that the growth rate of broilers can be increased while at the same time improving the meat quality.

Furthermore, the present invention can provide poultry meat with improved meat quality derived from poultry raised by the breeding method of the present invention.

In one embodiment of the present invention, as a result of feeding poultry with the feed additive containing both the emulsifier and the steviol glycoside of the present invention and rearing them, the group and the emulsifier or the emulsifier or Compared to the group fed with feed additives containing steviol glycoside alone, water holding capacity is increased, juice loss and heating loss are reduced, meat color is improved, and overall meat quality such as texture, meat characteristics, tenderness, juiciness and flavor are improved. appeared to be

Therefore, through these results, the present inventors found that, when an emulsifier and steviol glycosides are used as poultry feed additives, poultry productivity can be improved and high-quality poultry meat can be economically produced at the same time.

Hereinafter, the present invention will be described in more detail through examples. These Examples are for explaining the present invention in more detail, and the scope of the present invention is not limited to these Examples.

<Preparation example>

Preparation of emulsifiers, steviol glycosides, and squash

The emulsifier was lecithin purchased from Easybio, Seoul, South Korea. An emulsifier was used (lipidol, trademark registration number: 41-0292750-0000), and steviol-glycoside was purchased from Bioten (Bioten, Jeongeup, South Korea) and used (Anycover, No. EEGOU0012). .

In addition, as the poultry used in the present invention, white semi broiler, which is the most used chicken for samgyetang, was used, and all white semi broiler was managed according to the guidelines of the Animal Experiment Management Committee of Chungbuk National University.

<Example 1>

Breeding of white rice using feed additives including emulsifiers and steviol glycosides

A total of 140 hatched sex-mixed whites with an initial BW of 45.5±0.2 g were randomly assigned to have 4 replicate cages of 5 numbers of whites per cage for each treatment group. In addition, in this experiment, after dividing the groups into 7 groups as shown in Table 1 below, white rice was reared. In addition, the composition of the basic feed (basic feed) is shown in Table 2 below.

Broilers were maintained under a solar (electric) lamp of a light system containing 23 hours of light and 1 hour of dark. The room temperature was maintained at 33±1°C for the first 3 days, and decreased to 24°C until the end of the experiment, and the relative humidity was maintained at about 60%. Feed was provided during the experimental period in two stages, the initial stage from 0-14 days and the late stage from 15 days to 35 days.

experimental group Feed processing content CON basic feed T1 Basic feed + 0.1 wt% emulsifier added T2 Basic feed + 0.2 wt% emulsifier added T3 Basic feed + 0.5 wt% steviol glycosides added T4 Basic feed + 1.0 wt% steviol glycosides added T5 Basic feed + 0.1 wt% emulsifier + 0.5 wt% steviol glycoside addition T6 Basic feed + 0.2 wt% emulsifier + 1.0 wt% steviol glycosides added

<Example 2>

Analysis of weight gain and feed requirement of broilers according to the addition of emulsifiers and steviol glycosides

For broilers for each experimental group of Example 1, body weights were measured on day 0, day 14, and day 35, respectively. Weight gain (BWG) was calculated individually for each period and was calculated based on the cumulative body weight. Feed intake (FI) of each cage as a group over the same period was measured as BW (day 14 and day 35) with the calculated cumulative mean. Feed requirement ratio (FCR) was calculated as (feed intake)/(weight gain).

Item CON T1 T2 T3 T4 T5 T6 SE P-value starting weight 45.5 45.5 45.5 45.5 45.5 45.5 45.5 0.2 - 2 weeks old weight 199.7 203.0 204.7 202.3 204.1 206.8 207.4 1.4 0.076 end weight 859.2c 876.7bc 897.7b 875.0bc 894.7b 906.4a 911.6a 5.0 0.005 conductor weight 524.3b 536.7ab 547.0a 534.8ab 546.2a 554.6a 558.7a 3.7 0.023 Conductivity, % 61.0 61.2 60.9 61.1 61.0 61.2 61.3 0.9 0.879 0-2 weeks weight gain 154.2 157.5 159.2 156.8 158.6 161.3 161.9 2.1 0.162 feed intake 273.7a 260.8ab 272.6a 267.3ab 251.7b 260.4ab 262.1ab 4.2 0.044 Feed demand rate 1.775a 1.656bc 1.712b 1.705b 1.587c 1.614c 1.619c 0.012 0.008 2-5 weeks weight gain 659.5c 673.7b 693.0a 672.7b 690.6a 699.6a 704.2a 5.9 0.047 feed intake 1238.3 1211.3 1219.3 1236.3 1226.0 1220.4 1225.0 10.2 0.489 Feed demand rate 1.878a 1.798b 1.759bc 1.838ab 1.775b 1.744c 1.740c 0.022 0.038 0-5 week weight gain 813.7c 831.2b 852.2ab 829.5b 849.2ab 860.9a 866.1a 4.8 0.016 feed intake 1512.0 1472.1 1491.9 1503.6 1477.7 1480.8 1487.1 18.0 0.083 Feed demand rate 1.858a 1.771b 1.751b 1.813a 1.740bc 1.720c 1.717c 0.021 0.001 Abbreviation: CON, basal diet; T1, basal diet + 0.1% Lipidol; T2, basal diet + 0.2% Lipidol; T3, basal diet + 0.5% steviol glycosides; T4, basal diet + steviol glycosides; T5, basal diet + 0.1% Lipidol + 0.5% steviol glycosides; T6, basal diet + 0.2% Lipidol + 1.0% steviol glycosides; SE, standard error

As a result, as shown in Table 3, the white rice fed the feed to which the emulsifier and steviol-glycoside according to the present invention were added together was significantly higher than that fed the feed to which the emulsifier and steviol-glycoside were not added. The weight gain was shown, and it was found to show a higher weight gain compared to the white rice fed with feeds containing emulsifiers or steviol-glycoside respectively. On the other hand, as it was confirmed that the feed requirement ratio showed the lowest feed demand rate in the white rice fed with the feed added with the emulsifier and steviol-glycoside according to the present invention, when using the emulsifier and steviol glycoside as a feed additive, poultry's It was found that it was possible to induce the effect of improving productivity through weight gain and at the same time reduce the cost of feed due to the low feed requirement, so that poultry can be reared more economically.

<Example 3>

Analysis of the effect of enhancing the energy consumption rate of broilers by the addition of emulsifiers and steviol glycosides

Energy consumption rate analysis for each experimental group of Example 1 was performed. Energy digestibility was confirmed through digestibility analysis for each experimental group. For the analysis of nutrient digestibility, 0.2% of chromium oxide (Cr2O3) in the test feed before slaughter was added as a marker, and the samples were collected from 7 days before slaughter to 4 days after feeding and 3 days after the adaptation period. The collected minutes were dried in a dryer at 60° C. for 72 hours, and then pulverized with a Willey mill and used for analysis. Feed and minute energy were measured with an adiabatic oxygen bomb calorimeter (Parr Instruments, Moline, IL).

Item CON T1 T2 T3 T4 T5 T6 SE p-value Gross energy 72.74c 75.15a 75.53a 74.14b 74.56b 76.68a 77.49a 1.2 0.021 Abbreviation: CON, basal diet; T1, basal diet + 0.1% Lipidol; T2, basal diet + 0.2% Lipidol; T3, basal diet + 0.5% steviol glycosides; T4, basal diet + 1.0% steviol glycosides; T5, basal diet + 0.1% Lipidol + 0.5% steviol glycosides; T6, basal diet + 0.2% Lipidol + 1.0% steviol glycosides; SE, standard error

As a result, as shown in Table 4, the energy digestibility of the group bred with the emulsifier and steviol glycoside-added feed of the present invention compared to the group bred with the feed without the addition of an emulsifier or steviol glycoside showed significantly superior energy digestibility. , showed a higher digestibility than the group reared with feeds added alone with emulsifiers or steviol glycosides.

Therefore, the present inventors found that, when the feed additive containing the emulsifier and steviol glycoside of the present invention is used, the nutrient utilization rate can be increased by increasing the energy digestibility in the feed.

<Example 4>

Analysis of the effect of the addition of emulsifiers and steviol glycosides on the improvement of meat quality of broilers

Furthermore, in order to confirm whether the use of the feed additive containing the emulsifier and steviol glycoside of the present invention affects the meat quality of broilers, the present inventors collected breast meat from each experimental group of Example 1, and then Fat content, water holding capacity, juice loss, heating loss, and shearing force were analyzed, and as a sensory evaluation, meat color, texture, meat characteristics, tenderness, juiciness, and flavor were analyzed, and the results are shown in Table 5.

Item CON T1 T2 T3 T4 T5 T6 SE p-value Moisture content, % 74.8 74.2 74.7 75.8 74.9 75.2 76.1 0.4 0.562 Fat content, % 3.52b 4.31a 4.46a 4.84a 4.60a 4.96a 4.84a 0.3 0.015 water holding capacity, % 55.0b 56.4b 58.3b 58.8b 62.1ab 63.8a 64.6a 2.1 0.037 Loss of juice, % 5.21a 5.45a 4.82ab 5.20a 4.30b 4.12b 3.67b 0.30 0.004 Loss on heating, % 17.92a 16.96a 16.42ab 16.74ab 16.97a 15.84b 15.62b 1.02 0.027 shear force, g/g 2383.5 2267.9 2101.2 2098.4 2160.0 2217.2 2016.4 90.2 0.591 Sensory evaluation ¹⁾ six colors 1.8b 2.7ab 2.6ab 2.8ab 3.1ab 3.3a 3.4a 0.2 0.012 sense of organization 2.5b 2.80b 3.0ab 3.1ab 3.0ab 3.4a 3.3a 0.2 0.035 six characteristics 2.8 3.0 2.9 2.8 2.8 3.0 3.0 0.1 0.156 year 2.6b 3.0ab 3.2a 3.2a 3.3a 3.4a 3.3a 0.2 0.048 succulent 2.9b 3.2ab 3.5a 3.4a 3.3ab 3.7a 3.5a 0.2 0.007 zest 2.7b 3.1ab 3.2ab 3.1ab 3.1ab 3.4a 3.5a 0.1 0.001 full symbol 2.4c 3.5b 3.6ab 3.4b 3.4b 4.0a 3.8a 0.2 0.002 Abbreviation: CON, basal diet; T1, basal diet + 0.1% Lipidol; T2, basal diet + 0.2% Lipidol; T3, basal diet + 0.5% steviol glycosides; T4, basal diet + steviol glycosides; T5, basal diet + 0.1% Lipidol + 0.5% steviol glycosides; T6, basal diet + 0.2% Lipidol + 1.0% steviol glycosides; SE, standard error
¹⁾ Sensory evaluation: preference is very high - 5, high - 4, normal - 3, low - 2, very low - 1

As a result of the analysis, in the analysis of the quality of the breast meat, it was found that the water holding capacity was increased in the T5 and T6 groups fed with the feed supplemented with the emulsifier and steviol glycoside of the present invention compared to the control group fed with the general feed, while loss of juice And heating loss was decreased, indicating that the meat quality was improved, and the effect of improving the meat quality was more excellent than that of the emulsifier alone and the steviol glycoside alone group (see Table 5).

In the sensory taste analysis results, it was found that the T5 and T6 groups fed with the feed containing the emulsifier and steviol glycosides of the present invention had the most improved meat color, texture, softness, juiciness, flavor and overall preference compared to other experimental groups, especially T5 It was found that the group had the best meat quality improvement effect.

Therefore, through the above results, the present inventors found that, when an emulsifier and steviol glycosides are used as poultry feed additives, it is possible to increase the weight of poultry while simultaneously reducing the feed requirement, increase the energy digestibility, and reduce the loss of juice. As a result, it is possible to produce high-quality broiler meat as a whole.

So far, with respect to the present invention, the preferred embodiments have been looked at. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments are to be considered in an illustrative rather than a restrictive sense. The scope of the present invention is indicated in the claims rather than the foregoing description, and all differences within the scope equivalent thereto should be construed as being included in the present invention.

Claims (10)

A feed additive for improving poultry meat quality, comprising an emulsifier and steviol glycoside as active ingredients. According to claim 1,
The poultry is a chicken, duck or turkey, characterized in that the poultry meat quality improvement feed additive. According to claim 1,
The emulsifier is a lecithin emulsifier, characterized in that the poultry meat quality improvement feed additive. According to claim 1,
The mixing ratio of the emulsifier and the steviol glycoside is 1:3 to 1:8 by weight, a feed additive for improving poultry meat quality. 5. The method of claim 4,
The emulsifier is a feed additive for improving the meat quality of poultry, characterized in that it is contained in an amount of 0.1 to 0.2% by weight based on the total weight of the feed additive. 5. The method of claim 4,
The steviol glycoside is a feed additive for improving the meat quality of poultry, characterized in that it is contained in an amount of 0.5 to 1.0% by weight based on the total weight of the feed additive. According to claim 1,
The feed additive is
weight gain in poultry;
reduced feed consumption;
increased digestibility of energy in feed; and
reduced juice loss and loss of heating; A feed additive for improving the meat quality of poultry, characterized in that it improves the meat quality of poultry through the effect. A feed composition for poultry rearing comprising the feed additive of any one of claims 1 to 7. A method of breeding poultry, comprising the step of feeding the feed composition of claim 8 to the poultry. Poultry meat derived from poultry raised by the breeding method of paragraph 9.