KR20040037969A - Feed for the breeding of duck using gulfweed and rind of crab and the duck meat produced using thereof - Google Patents

Abstract

PURPOSE: Provided are a feed formulation for breeding the duck using gulfweed and a crab shell and duck meat produced by feeding the feed formulation 3 times/day. The duck meat has high content of chitosan and unsaturated fatty acid, and high meat quality. CONSTITUTION: A method for manufacturing a feed formulation for breeding the duck comprises the steps of: drying gulfweed to a moisture content of 12-25% and pulverizing it; drying a crab shell and pulverizing it; and adding 2-4 wt% of the pulverized gulfweed and 3-8 wt.% of the pulverized crab shell to the conventional feed formulation for the duck and mixing them. Duck meat is produce by feeding the feed formulation to a duck 3 times/day. The duck meat has high content of chitosan and unsaturated fatty acid, and high meat quality, and contains 4-6mg/g of chitosan.

Description

Feed for the breeding of ducks using mother and crab shells and duck meat produced using him {Feed for the breeding of duck using gulfweed and rind of crab and the duck meat produced using Technical}

The present invention relates to a feed for duck breeding prepared by adding a mother and crab shell to a general feed for duck breeding and a duck meat product produced using the same. More specifically, the present invention relates to a duck meat product containing a large amount of chitin chitosan produced by providing a feed for duck breeding prepared by adding a mother and crab shell to a general feed for duck breeding.

Ducks have long been used as ingredients for high-quality dishes because they are so tasty they are called small winged cows. According to the literature such as Dongbobom, Herbal Medicine, Herbal Papules, and Oath, the duck has detoxification effect and is particularly effective for adult diseases such as hypertension, arteriosclerosis, diabetes, etc. It is given. In addition, duck meat is a nutritional source containing a large amount of unsaturated fatty acids, which can supply linoleic acid and linoleic acid, which are fatty acids necessary for our human body, and because it inhibits cholesterol formation and facilitates blood circulation in the human body, It is effective in preventing adult diseases, and unlike other meats, it is alkaline food, so it is a good source of protein and fat.

However, due to the peculiar smell of duck, the range of edible food is not wider than that of chicken, and the cooking method is extremely limited. Unlike other livestock, ducks grow quickly because they do not limit the amount of vegetarian food due to their diet. Therefore, if you remove the peculiar smell of duck to improve the palatability, it can be generalized like ordinary poultry such as chicken.

Chitin was first discovered in mushrooms in 1811 by Branconit in France and was called shingles, and was renamed Chitin in 1823 by Ordier to form a microbial envelope, and Chitosan later in 1894. It was named by Hoppesseyler.

Chitin chitosan is a mixture of chitin and chitosan and is a high molecular weight bioactive substance. Chitin is a polysaccharide having a molecular weight of 1 million or more with N-acetyl-β-D-glucosamine residues of 5000 or more 1 to 4 carbon bonds, and chitosan is a substance having a structure in which acetyl groups are removed from chitin. It is present in shells of shellfish such as crabs and shrimps, shells of insects such as helmets and grasshoppers, shells of clams, oysters, and cell walls of mushrooms. In addition, according to recent research data, chitin chitosan absorbs and excretes excess harmful cholesterol in the body, that is, acts as a decholesterol, inhibits the proliferation of cancer cells, as well as chloride, which causes blood pressure to rise. By suppressing the adsorption and absorption in the intestine, the ions are discharged out of the body to inhibit blood pressure increase and to proliferate effective bacteria in the intestine and activate cells. In addition, blood sugar control, liver function improvement, and the effects of heavy metals and pollutants in the body are effective.

The inventors have identified the crab shell for use as a feed additive and have obtained it as a patent No. 1996-0016856. However, no studies have been conducted to find out the effect as a feed additive for duck breeding by adding hatban as a plant material among seaweeds with completely different physicochemical properties from crab shells. As a result of the test as a feed additive for duck breeding, it confirmed that there is a synergistic effect.

Mabanban is a brown algae plant and is a sea horse with Mabanban Hatban. It grows mainly in the lower intertidal zone. It is also commonly used to refer to a large brown algae belonging to the Mabanban family. It is dark yellowish brown and can be found all over the coast of Korea. However, these mother boards are sometimes a problem because they are pushed to the shore in large quantities. In addition, the crab, such as Yeongdeok Hong crab, reaches thousands of tons per year, even if the shell is discarded except for the decorative part.

Therefore, the present invention is often seen on the shore, or after a certain treatment, such as drying and powdering the discarded shell parts other than the decorative parts of the hat crab and crab that is pushed in a large amount and then added to a regular feed The duck meat produced by mixing is found to have a high content of chitin chitosan, a chewy taste of meat, a taste that is not unique to ducks, as well as a fresh and light taste compared to the duck meat fed with regular feed. The present invention has been completed.

Accordingly, it is an object of the present invention to provide a method for producing a feed for duck breeding by adding a mother and crab shell to the general feed for duck breeding. Another object of the present invention to provide a feed for duck breeding produced by the above method. Still another object of the present invention is to provide a duck meat product production method of feeding the prepared duck breeding feed to duck three times a day. Still another object of the present invention is to provide a duck meat product prepared by the above-mentioned duck meat product production method, containing a large amount of chitin chitosan, having excellent functional beauty and meat quality, and increasing unsaturated fatty acid.

The above object of the present invention is dried and crushed maban and crab shells, and then added to the general feed for duck breeding and mixing to produce a feed for duck breeding and the weight gain and feed intake of the prepared duck meat, the content of chitin chitosan, functional beauty Achievement was confirmed by measuring the content of fatty, unsaturated fatty acids and excellent.

The method for preparing a feed for duck breeding of the present invention comprises the steps of: (a) drying the hat to make the water content 12-25% and then grinding; (b) drying the shell and then grinding the shell; (c) 2 to 4% by weight of the mashed half ground in step (a) and 3 to 8% by weight of crab shells ground in step (b) are mixed with the duck feed general feed.

The broiler production method using the feed for duck breeding of the present invention is preferably produced by feeding the feed for duck breeding produced by the above method to feed the duck three times a day.

Hereinafter, specific examples of the present invention will be described in detail with reference to Examples and Experimental Examples, but the scope of the present invention is not limited thereto.

Example

Cherry volley species ducks were selected as public animals. Two hundred and fifty cherry volley ducks were randomly extracted and randomly divided into 50 for each of Examples 1, 2, and 3 and Comparative Examples. Feeding for duck breeding of Examples 1, 2, and 3 and Comparative Examples was given three times a day.

Example 1

2% by weight of dried and ground mother board and 3% by weight of crab shells were added to 95% by weight of general feed for duck breeding, followed by mixing and feeding.

Example 2

3% by weight of dried and crushed mother board and 5% by weight of crab shells were added to 92% by weight of general feed for duck breeding, and then mixed and supplied.

Example 3

4% by weight of dried and ground mother board and 8% by weight of crab shells were added to 88% by weight of general feed for duck breeding, and then mixed and supplied.

Comparative Example

100% by weight of the general feed for duck breeding was supplied.

Mixing ratio of snow crab shell, mother board and general feed of Examples 1 to 3 and Comparative Example Maternity board (w / w) Snow crab shell (w / w) General feed (w / w) Example 1 2% 3% 95% Example 2 3% 5% 92% Example 3 4% 8% 88% Comparative Example 0% 0% 100%

Experimental Example 1

Feed intake and body weight during the breeding process of 7-week-old ducks fed the feeds of Examples 1 to 3 and Comparative Example for 5 weeks while maintaining the indoor temperature of 22 ° C. and humidity 60% in a breeding ground of 1.2 m long and wide. Was observed, and the results are shown in Table 1 below. Body weight was measured at the start and end of the test, and feed intake was determined by measuring the remaining feed after the end of the test.

Weight gain, daily gain, feed intake by feed additive feed for duck breeding of the present invention Starting weight (g) End weight (g) Weight gain (g) Daily weight gain (g) Feed Intake (g / day) Example 1 1285 4015 2730 78.00 238 Example 2 1283 4109 2826 80.75 237 Example 3 1286 4039 2753 78.66 235 Comparative Example 1282 3920 2638 75.38 245

Weight gain and daily gain tended to increase by feeding the feed additive for duck breeding of the present invention, and feed intake tended to decrease. In particular, the weight gain of Example 2 was high, and the feed intake was low. Therefore, it can be seen that the feeding of the feed for duck production of the present invention prepared by adding and mixing the mother and crab shells to the general feed for duck breeding improves the productivity of the duck meat.

Experimental Example 2

The chitin chitosan, taurine, and cholesterol contents of the carcasses of duck meat produced by Examples 1 to 3 and Comparative Examples were measured. Chitin chitosan content was measured at absorbance of 540nm using a spectrophotometer.

Chitin chitosan content of duck meat produced by the feed additive for duck breeding of the present invention Chitin Chitosan (mg / kg) Taurine (mg / kg) Cholesterol (mg / kg) Experimental Example 1 158.78 1041.01 793.74 Experimental Example 2 163.69 1059.32 781.99 Experimental Example 3 160.01 1044.12 786.63 Comparative Example 110.66 772.93 1078.72 The chitin chitosan content was measured at absorbance 540nm using a spectrophotometer. The data are based on test reports from the Center for Science and Technology Analysis, an agency accredited by the Food and Drug Administration.

Duck meat produced by feeding the feed for duck breeding of the present invention had a high content of chitin chitosan and taurine, and a relatively low content of cholesterol. In particular, in Experimental Example 2 in which 3% by weight of mabanban and 5% by weight of shellfish were added to general feed for duck breeding, chitin chitosan and taurine had the highest content and the lowest content of cholesterol.

Experimental Example 3

The sensory test was carried out using the seven-week-old duck meat carcasses produced by Examples 1 to 3 and Comparative Examples as samples. The conductor is cut into ducks reared by the method described in each example in the dimensions of width x length x height 5.0 cm x 2.0 cm x 1.0 cm, and the cut meat is heated with propane gas on an iron plate without a quenched lid for 10 minutes. Grilled enough.

The sensory test was performed by randomly extracting five men and women aged 40 to 50 each to obtain a nine-point grading system (9 = best; 8 = very good; 7 = usually good). 6 = slightly good; 5 = good or dislike; 4 = slightly dislike; 3 = normally dislike; 2 = very dislike; 1 = dislike most.

Sensory test result after roasting duck meat produced by the feed of the feed for duck breeding of the present invention Meat quality Color zest Example 1 4.8 5.1 6.4 Example 2 5.5 5.5 6.7 Example 3 5.3 5.2 6.5 Comparative Example 4.5 4.5 5.1

According to the sensory test result of the duck carcass produced by feeding the feed for duck breeding, the content of glycoprotein is higher than that of the duck carcass produced by feeding the general feed for duck breeding. As a result, it was confirmed that the color was changed to the same color as roasted beef, and the meat had less fat compared to the duck meat produced by the comparative example, and the chewy degree was compared to the beef meat. In addition, the duck meat of the present invention is reduced in fat and, conversely, the amino acid content is increased, and the flavor is improved as compared with general duck meat. Therefore, the duck meat of the present invention was superior to the duck meat produced by feeding the general feed for duck breeding in all three of meat quality, color taste, flavor.

Experimental Example 4

In the seven-week-old duck carcass produced by feeding the feed of Examples 1 to 3 and Comparative Example, the meat quality was examined and the results are shown in Table 3 below.

Shear (Warner-Bratzler shear force) will detach the breast of duck using the core of 0.5inch ² gugyeong from above and allowed to stand for 24 hours at below 5 ℃ refrigerator After heating the sample is maintained for 10 minutes at an internal temperature of meat muscle 75 ℃ Direction was measured using a Warner-Bratzler shear force meter (GR Elec. Mfg. Co., USA). Water holding capacity (WHC) was measured by squeezing method (Ryoichi, 1993). Cooking Loss (CL) was calculated by weight difference before and after heating by removing duck breast and heating in a constant temperature water bath at 80 ° C. for 40 minutes.

Meat quality survey results of duck meat produced by the feed additive for duck breeding of the present invention Shear force (kg / cm ² ) Conservability (%) Heating loss (%) pH Example 1 3.54 36.12 31.08 6.67 Example 2 3.98 37.30 30.76 7.55 Example 3 3.30 36.92 31.21 6.98 Comparative Example 2.81 33.29 35.69 5.87

Duck meat produced by adding and feeding the mother and crab shell of the present invention to the general feed for duck breeding is higher in water retention than the duck meat produced by feeding only general feed for duck breeding, and the shear force indicating the toughness of the meat is a general duck It is chewy because it is higher than the flesh.

On the other hand, the color of the duck carcass produced by feeding the general feed for duck breeding (comparative example) is black and the inside is gray white, while the duck meat produced by adding the hat half and crab shell of the present invention to the general feed for duck breeding The color of the conductor was all crimson.

Experimental Example 5

The composition in the 7-week-old duck carcass produced by feeding the feeds of Examples 1 to 3 and Comparative Example was examined, and the results are shown in Table 4 below.

Composition of duck meat produced by the feed additive for duck breeding of the present invention moisture(%) Crude Protein (%) Crude fat (%) % Viewed Example 1 54.54 14.52 26.34 3.12 Example 2 51.21 15.25 26.01 3.16 Example 3 53.01 14.78 26.21 3.13 Comparative Example 56.39 11.62 32.13 2.67

As can be seen from the experimental results, the duck meat produced by adding and feeding the mother and crab shell of the present invention to the general feed for duck breeding has a low water content and crude fat content and an increase in protein and ash content, indicating that meat quality has been improved. there was.

Experimental Example 6

Example 1, 2, 3 and the comparative example was analyzed in the seven-week-old duck meat fatty acids produced by feeding the feed is shown in Table 5.

Lipid extraction for fatty acid analysis was analyzed by the method of Folch et al. (1957). 20 g of duck breast samples were placed in 150 mL of Folch solution (chloroform and Methanol = 2: 1), homogenized for 5 minutes, filtered through filter paper (No. 2), and centrifuged (771 g for 10 minutes). After centrifugation, the supernatant was discarded, NaSO ₄ was added to the lower layer, filtered, and the chloroform was blown off with a concentrator to recover lipids. The extracted lipids were pretreated according to the method of Morrison and Smith (1964) and then analyzed for fatty acids. That is, about 5 mg of extracted lipids are collected and put into a methylation tube, and 0.5 mL of NaOH is added thereto, and then heated to 100 ° C. for 15 minutes to cool. Add 3 mL of 14% solution of Boron trifluoride methanol and heat it again for 15 minutes, cool, transfer to test tube, add 1 mL of heptane and 5 mL saturated sodium chloride (NaCl) solution, and mix After the separation, the supernatant was collected, placed in a V tube, and stored at -80 ° C, and analyzed using gas chromatography equipped with an auto-sampler. At this time, the GC column used was a capillary column and N ₂ was used as a carrier gas.

Fatty Acid Composition of Duck Meat Produced by Feeding for Feeding Ducks of the Present Invention Saturated fatty acid Monounsaturated Fatty Acids Polyunsaturated Fatty Acids Total unsaturated amount Example 1 29.57% 55.40% 14.88% 70.28% Example 2 28.35% 55.44% 15.41% 70.85% Example 3 29.25% 54.91% 15.32% 70.43% Comparative Example 32.59% 53.07% 12.34% 65.41%

Duck meat produced by the feeding of the feed for duck breeding of the present invention has a high unsaturated fatty acid content of more than 70%, while the unsaturated fatty acid content of duck meat produced by the general feed for duck breeding is 65.41%. In particular, in the case of Example 2, the content of unsaturated fatty acids is high, and the content of monounsaturated fatty acids is high.

As described above, the broiler feed prepared by adding and mixing 2 to 4% by weight and 3 to 12% by weight of crab shell to the general feed for duck breeding of the present invention is fed to the breeding broiler to increase the weight gain and feed book Reduced intake, the duck meat produced by feeding the feed for duck breeding of the present invention is high in the content of chitin chitosan, high protein and crude ash content, excellent sensory and meat quality as well as providing a low content of saturated fatty acids It is an innovative and useful invention in the livestock industry because it has an excellent effect.

Claims (4)

(a) drying the mother board to have a water content of 12 to 25% and then crushing with a grinder; (b) drying the shells and then grinding the shell with a grinder; (C) characterized in that it comprises a step of mixing by adding 2 to 4% by weight of the mother board crushed in step (a) and 3 to 8% by weight of the crab shell ground in step (b) to the general feed for duck breeding Method for producing a feed for duck breeding. Duck feed prepared by the method of claim 1. A method of producing a duck meat, characterized in that the feed for duck breeding described in claim 2 to feed the duck three times a day. A duck meat produced by the method according to claim 3, containing 4 to 6 mg / g of chitin chitosan, having excellent functional beauty and quality, and having increased unsaturated fatty acids.