CN116616373B - Application of beef tallow in improving hard heart rate of salted duck eggs - Google Patents
Application of beef tallow in improving hard heart rate of salted duck eggs Download PDFInfo
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- CN116616373B CN116616373B CN202310643132.5A CN202310643132A CN116616373B CN 116616373 B CN116616373 B CN 116616373B CN 202310643132 A CN202310643132 A CN 202310643132A CN 116616373 B CN116616373 B CN 116616373B
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- 235000013601 eggs Nutrition 0.000 title claims abstract description 45
- 241000272525 Anas platyrhynchos Species 0.000 title claims abstract description 37
- 239000003760 tallow Substances 0.000 title claims abstract description 26
- 235000015278 beef Nutrition 0.000 title claims abstract description 25
- 239000000843 powder Substances 0.000 claims description 23
- 240000008042 Zea mays Species 0.000 claims description 12
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 12
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 12
- 235000005822 corn Nutrition 0.000 claims description 12
- 241000209140 Triticum Species 0.000 claims description 10
- 235000021307 Triticum Nutrition 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 10
- 239000004470 DL Methionine Substances 0.000 claims description 9
- BVHLGVCQOALMSV-JEDNCBNOSA-N L-lysine hydrochloride Chemical compound Cl.NCCCC[C@H](N)C(O)=O BVHLGVCQOALMSV-JEDNCBNOSA-N 0.000 claims description 9
- 235000019764 Soybean Meal Nutrition 0.000 claims description 9
- FFEARJCKVFRZRR-UHFFFAOYSA-N methionine Chemical compound CSCCC(N)C(O)=O FFEARJCKVFRZRR-UHFFFAOYSA-N 0.000 claims description 9
- 235000006109 methionine Nutrition 0.000 claims description 9
- 229930182817 methionine Natural products 0.000 claims description 9
- 239000004455 soybean meal Substances 0.000 claims description 9
- 235000015099 wheat brans Nutrition 0.000 claims description 8
- 235000005911 diet Nutrition 0.000 claims description 7
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 230000037213 diet Effects 0.000 claims description 6
- 230000017448 oviposition Effects 0.000 claims description 5
- 239000001763 2-hydroxyethyl(trimethyl)azanium Substances 0.000 claims description 3
- 235000019743 Choline chloride Nutrition 0.000 claims description 3
- 229930003427 Vitamin E Natural products 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 229960003178 choline chloride Drugs 0.000 claims description 3
- SGMZJAMFUVOLNK-UHFFFAOYSA-M choline chloride Chemical compound [Cl-].C[N+](C)(C)CCO SGMZJAMFUVOLNK-UHFFFAOYSA-M 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 claims description 3
- 230000003449 preventive effect Effects 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 235000019165 vitamin E Nutrition 0.000 claims description 3
- 229940046009 vitamin E Drugs 0.000 claims description 3
- 239000011709 vitamin E Substances 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 229940088594 vitamin Drugs 0.000 claims description 2
- 239000011782 vitamin Substances 0.000 claims description 2
- 241000272517 Anseriformes Species 0.000 abstract 3
- 241000272522 Anas Species 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 10
- 210000002969 egg yolk Anatomy 0.000 description 9
- 239000002994 raw material Substances 0.000 description 8
- 102000002322 Egg Proteins Human genes 0.000 description 5
- 108010000912 Egg Proteins Proteins 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
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- 239000003921 oil Substances 0.000 description 5
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- 125000003396 thiol group Chemical class [H]S* 0.000 description 5
- FUFJGUQYACFECW-UHFFFAOYSA-L calcium hydrogenphosphate Chemical compound [Ca+2].OP([O-])([O-])=O FUFJGUQYACFECW-UHFFFAOYSA-L 0.000 description 4
- 235000019864 coconut oil Nutrition 0.000 description 4
- 239000003240 coconut oil Substances 0.000 description 4
- 235000019700 dicalcium phosphate Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
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- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000001014 amino acid Nutrition 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
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- 230000036750 egg laying performance Effects 0.000 description 2
- 235000021050 feed intake Nutrition 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- FSVJFNAIGNNGKK-UHFFFAOYSA-N 2-[cyclohexyl(oxo)methyl]-3,6,7,11b-tetrahydro-1H-pyrazino[2,1-a]isoquinolin-4-one Chemical compound C1C(C2=CC=CC=C2CC2)N2C(=O)CN1C(=O)C1CCCCC1 FSVJFNAIGNNGKK-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000014590 basal diet Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
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- 235000020940 control diet Nutrition 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229960002957 praziquantel Drugs 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/158—Fatty acids; Fats; Products containing oils or fats
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/02—Breeding vertebrates
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/105—Aliphatic or alicyclic compounds
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/142—Amino acids; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/174—Vitamins
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
- A23K20/28—Silicates, e.g. perlites, zeolites or bentonites
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K30/00—Processes specially adapted for preservation of materials in order to produce animal feeding-stuffs
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/70—Feeding-stuffs specially adapted for particular animals for birds
- A23K50/75—Feeding-stuffs specially adapted for particular animals for birds for poultry
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- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
- A23L3/3463—Organic compounds; Microorganisms; Enzymes
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- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses application of beef tallow in improving the hardness and heart rate of salted duck eggs, and relates to the technical field of feeds. The beef tallow is added into the feed for the laying ducks, and the mass ratio of the beef tallow in the feed for the laying ducks is 1% -2%. The feed can reduce the hard heart rate of salted eggs by 21 percent (P is less than 0.05), can reduce the feed-egg ratio, can improve the laying rate of the laying ducks, and has market popularization value.
Description
Technical Field
The invention relates to the technical field of feeds, in particular to application of beef tallow in improving hard heart rate of salted duck eggs.
Background
Under the condition that the price of the feed is greatly increased, the quality of the feed is reduced due to the fact that the raw materials are widely applied in modern commercial feeds for the laying ducks, the quality of the duck eggs is reduced, the hard heart rate of the salted duck eggs which are cured into salted eggs in production is generally high, and according to sampling analysis, the hard heart rate of the salted duck eggs which are cured in the market at present is up to more than 90%. How to reduce the hard heart rate of the salted duck eggs and improve the quality of the salted duck eggs is a practical problem which needs to be overcome by the person skilled in the art. At present, VE, functional antioxidants and other substances are often added in the production of feed, so that hard heart is reduced through the deposition of antioxidant substances, but the effect of improving the hard heart rate is poor in the production.
Therefore, providing a feed that safely improves the hardness of salted duck eggs is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a feed formula for improving the hard heart rate of salted duck eggs and application thereof, and the feed can reduce the hard heart rate of salted duck eggs by about 21 percent (P < 0.05), reduce the feed-egg ratio and improve the laying rate of laying ducks.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the application of beef tallow in improving the hard heart rate of salted duck eggs.
The beef tallow is applied to the feed for the laying ducks, and the quality of the duck eggs is improved through adjustment of dietary structure and nutritional ingredients, so that the hard heart rate of the salted duck eggs is further reduced.
As the preferable technical scheme, the beef tallow is added into the feed for the laying ducks, and the mass ratio of the beef tallow in the feed for the laying ducks is 1% -2%.
More preferably, the mass ratio of the beef tallow in the feed for the laying ducks is 1%.
The invention further aims to provide a feed for improving the hard heart rate of salted duck eggs, which comprises 1-2% of beef tallow and 98-99% of basic feed by mass.
As a preferable technical scheme, the feed comprises 1% of beef tallow and 99% of basic diet by mass ratio.
More preferably, the basic diet comprises 6.4 to 7.5 percent of corn, 49.2 to 52.59 percent of wheat, 18.12 to 18.15 percent of soybean meal, 3.77 to 7.24 percent of wheat bran, 4.5 percent of corncob powder, 0.16 to 0.17 percent of DL-methionine (99 percent), 0.29 to 0.29 percent of L-lysine hydrochloride, 9.22 to 9.29 percent of stone powder, 1.47 to 1.55 percent of calcium hydrophosphate, 0.30 percent of salt and 1 percent of premix.
In order to balance the difference, the invention adjusts the basic feed in a small range [ the wheat (energy feed) in the feed is adjusted, and other raw materials are finely adjusted ], so as to ensure that the energy, protein and amino acid levels in the total feed are consistent.
More preferably, the basic diet comprises, based on the total mass of the diet, 7.5% of corn, 52.59% of wheat, 18.12% of soybean meal, 3.77% of wheat bran, 4.5% of corncob meal, 0.16% of DL-methionine (99%), 0.29% of L-lysine hydrochloride, 9.22% of stone powder, 1.55% of calcium hydrophosphate, 0.30% of salt and 1% of premix.
More preferably, the premix is composed of, per kilogram: the duck is prepared from 30g of multi-vitamin, 150g of baking soda, 130g of duck ore, 130g of choline chloride (50%), 15g of praziquantel, 4g of vitamin E (50%), 100g of mildew preventive and 441g of zeolite powder (filler).
Compared with the prior art, the invention discloses application of beef tallow in improving the hardness heart rate of salted duck eggs and provides a feed for improving the hardness heart rate of salted duck eggs. The feed can obviously reduce the hard heart rate of salted eggs, reduce the feed-egg ratio and improve the laying rate of the laying ducks.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention discloses application of beef tallow in improving the hard heart rate of salted duck eggs, the raw materials are commercially available, the sources of the raw materials are not particularly limited, and the related methods, such as no special mention, are conventional methods and are not repeated herein.
The corn cob powder is prepared by crushing corn cobs after corn cob threshing; the stone powder is ore powder with calcium content more than or equal to 36%; the beef tallow is prepared from beef fat tissue serving as a raw material by adopting a high Wen Dilian; the premix used comprises the following components in parts by weight: 30g of multi-dimension for ducks (Nando multi-dimension D101, nando New Nando feed technology Co., ltd.), 150g of baking soda, 130g of duck ore (Nando Duyaku ore, nando New Nando feed technology Co., ltd.), 130g of choline chloride (50%), 15g of danquanling (feed antioxidant, tay Ruitai chemical Co., ltd.), 4g of vitamin E (50%), 100g of mildew preventive and 441g of zeolite powder (filler).
Example 1
Feed for improving hard heart rate of salted duck eggs
The raw materials comprise the following components in parts by mass: corn 7.5%, wheat 52.59%, soybean meal 18.12%, wheat bran 3.77%, corncob powder 4.5%, DL-methionine (99%) 0.16%, L-lysine hydrochloride 0.29%, stone powder 9.22%, calcium hydrogen phosphate 1.55%, salt 0.30%, premix 1% and beef tallow 1%.
Example 2
The raw materials comprise the following components in parts by mass: 6.4% of corn, 49.2% of wheat, 18.15% of soybean meal, 7.24% of wheat bran, 4.5% of corncob powder, 0.17% of DL-methionine (99%), 0.28% of L-lysine hydrochloride, 9.29% of stone powder, 1.47% of calcium hydrophosphate, 0.30% of salt, 1% of premix and 2% of beef tallow.
Comparative example 1 (control diet)
The raw materials comprise the following components in parts by mass: 7.76% of corn, 57.22% of wheat, 17.99% of soybean meal, 4.5% of corncob powder, 0.15% of DL-methionine (99%), 0.31% of L-lysine hydrochloride, 9.25% of stone powder, 1.52% of calcium hydrophosphate, 0.30% of salt and 1% of premix.
Comparative example 2 (vegetable oil group)
Corn 7.5%, wheat 52.59%, soybean meal 18.12%, wheat bran 3.77%, corncob powder 4.5%, DL-methionine (99%) 0.16%, L-lysine hydrochloride 0.29%, stone powder 9.22%, calcium hydrogen phosphate 1.55%, salt 0.30%, premix 1% and coconut oil 1%.
Comparative example 3 (Mixed oil group)
Corn 7.5%, wheat 52.59%, soybean meal 18.12%, wheat bran 3.77%, corncob powder 4.5%, DL-methionine (99%) 0.16%, L-lysine hydrochloride 0.29%, stone powder 9.22%, calcium hydrogen phosphate 1.55%, salt 0.3%, premix 1%, and mixed oil (beef tallow: coconut oil 1:1) 1%.
Comparative example 4
Corn 4%, wheat 42.54%, soybean meal 18.1%, wheat bran 14.38%, corncob powder 4.5%, DL-methionine (99%) 0.18%, L-lysine hydrochloride 0.26%, stone powder 9.3%, calcium hydrogen phosphate 1.44%, salt 0.30%, premix 1% and beef tallow 4%.
The basal diet of all examples and comparative examples of the present invention, except for oil (tallow/coconut oil), had a comparable diet structure, i.e., consistent energy, protein and amino acid levels in the formulation.
Effect example 1
(1) 288 Egg-laying ducks at the peak of 180-day-old egg-laying period were randomly equally divided into 4 treatment groups (comparative example 1, comparative example 2 and comparative example 3) with 6 repeated bars each, and 12 ducks were fed in a single cage.
The test period is 60 days, and the laying ducks eat water freely during the test period, and keep 16h of illumination every day.
(2) The daily feed intake, egg production number and egg weight of each column were recorded. At the end of the test, all egg samples were collected for index analysis. Each group of the salted duck eggs is accumulated and collected to 50 duck eggs (the average weight is 65-72 g), the salted duck eggs are salted by a plant ash method, each duck egg is uniformly coated with mud (the mass ratio of mud to salt to water is 4:5:10) which is prepared by about 2-3mm, the outer layer of the mud is wrapped with rice straw ash, and the salted duck eggs are wrapped with plastic films and are salted for 50 days at room temperature. After pickling, rice stem ash and pug are cleaned, and duck eggs are placed in a steam box to be steamed for 15 minutes at 120 ℃ and then indexes such as hard heart rate and hard heart ratio are measured.
(3) The data of each test group are counted, the influence of each treatment group feed on the egg laying performance of the laying ducks is shown in table1, and the influence of each treatment group feed on the quality of salted duck eggs is shown in table 2.
Criteria for hard heart determination: after peeling off the yolk, it was checked for hard cores and the hard cores were completely separated and weighed on filter paper. The salted egg hard heart rate and hard heart rate were determined. The calculation method comprises the following steps:
Salted yolk hard heart rate (%) = number of salted eggs with hard heart/total number of salted eggs x 100%
Salted egg yolk hard core ratio (%) = salted egg hard core mass/salted egg mass×100%
Egg yolk triglyceride content: measuring by using a kit of Nanjing established biological engineering institute;
Free mercapto: measuring by using a kit of Nanjing established biological engineering institute;
TABLE 1
TABLE 2
| Control group | Butter oil | Coconut oil | Mixed oil | SEM (Standard error) | P value | |
| Hard heart rate% | 59.5a | 38.2d | 54.7a | 42.0c | 2.76 | 0.005 |
| Hard heart ratio% | 1.35a | 0.62c | 1.35a | 0.98b | 0.10 | 0.02 |
| Egg yolk triglyceride content, mmol/g | 1.04b | 1.25a | 1.32a | 1.28a | 0.078 | 0.05 |
| Free mercapto groups (mu mol/g) | 17.9a | 16.8b | 16.5b | 17.4ab | 0.3 | 0.04 |
Effect example 2
(4) 288 Egg-laying ducks at the peak period of 180 days of age were randomly equally divided into 4 treatment groups (comparative example 1, example 2 and comparative example 3), 6 repeated bars were arranged in each group, and 12 ducks were fed in a single cage in each repeated bar. The test method and the data processing method are the same as in effect example 1, the influence of each processing group feed on the egg laying performance of the laying ducks is shown in table 3, and the influence on the quality of salted duck eggs is shown in table 4.
TABLE 3 Table 3
| Control group | 1％ | 2％ | 4％ | SEM (Standard error) | P value | |
| Laying rate of% | 78.5 | 82.1 | 83.0 | 81.2 | 2.69 | 0.614 |
| Average egg weight, g | 70 | 70.7 | 69.6 | 69.0 | 0.20 | <0.001 |
| Feed intake, g/d | 155 | 155 | 157 | 153 | 0.50 | 0.49 |
| Ratio of feed to egg | 2.83 | 2.68 | 2.73 | 2.73 | 0.25 | 0.63 |
TABLE 4 Table 4
| Control group | 1% Butter | 2% Butter | 4% Butter | SEM (Standard error) | P value | |
| Hard heart rate% | 59.51b | 38.24d | 52.12c | 69.2a | 3.0 | <0.001 |
| Hard heart ratio% | 1.35a | 0.62b | 1.02ab | 1.29a | 0.18 | 0.012 |
| Free mercapto groups (mu mol/g) | 17.6ab | 16.8b | 18.0ab | 18.5a | 0.31 | 0.05 |
| Egg yolk triglyceride content, mmol/g | 1.04c | 1.25b | 1.35ab | 1.40a | 0.06 | 0.001 |
In conclusion, as can be seen from the results of effect examples 1 and 2, the application of the beef tallow to the feed for the laying ducks significantly reduces the hard heart rate of salted eggs, reduces the feed-egg ratio, improves the laying rate of the laying ducks, and has popularization value. The hard yolk is mainly produced by protein crosslinking caused by disulfide bonds, so that the hard yolk is produced, and the free sulfhydryl content is reduced during disulfide bond formation. The addition of 1% tallow results in a reduction of free thiol groups in egg yolk and thus in a reduction of hard heart formation.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. The application of beef tallow in improving the hard heart rate of salted duck eggs,
Adding the beef tallow into a feed to feed an egg-laying duck, and preparing eggs laid by the egg-laying duck into salted duck eggs, wherein the feed comprises 1-2% of beef tallow and 98-99% of basic diet by mass;
Based on the total mass of the feed, the basic feed comprises 6.4 to 7.5 percent of corn, 49.2 to 52.59 percent of wheat, 18.12 to 18.15 percent of soybean meal, 3.77 to 7.24 percent of wheat bran, 4.5 percent of corncob powder, 0.16 to 0.17 percent of DL-methionine, 0.29 to 0.29 percent of L-lysine hydrochloride, 9.22 to 9.29 percent of stone powder, 1.47 to 1.55 percent of calcium hydrophosphate, 0.30 percent of salt and 1 percent of premix;
The premix comprises the following components in parts by weight: 30g of multi-vitamin duck, 150g of baking soda, 130g of duck ore, 130g of choline chloride, 15g of danquanling, 4g of vitamin E, 100g of mildew preventive and 441g of zeolite powder.
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| CN102461743A (en) * | 2010-11-04 | 2012-05-23 | 杨宪勇 | Duck feed and preparation method |
| CN105212095A (en) * | 2015-08-24 | 2016-01-06 | 湖北省农业科学院畜牧兽医研究所 | A kind of production method of natural red heart health care Salted duck egg |
| CN106036162A (en) * | 2016-06-22 | 2016-10-26 | 太仓市新华粮食生产专业合作社 | Chinese herbal medicine containing feed for laying duck |
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