CN105995127A - Compound additive capable of improving aged laying hen egg shell quality and application thereof - Google Patents

Compound additive capable of improving aged laying hen egg shell quality and application thereof Download PDF

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Publication number
CN105995127A
CN105995127A CN201610307517.4A CN201610307517A CN105995127A CN 105995127 A CN105995127 A CN 105995127A CN 201610307517 A CN201610307517 A CN 201610307517A CN 105995127 A CN105995127 A CN 105995127A
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laying hen
compound additive
quality
aged
egg
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CN105995127B (en
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齐广海
张海军
张亚男
王晶
武书庚
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Feed Research Institute of Chinese Academy of Agricultural Sciences
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Feed Research Institute of Chinese Academy of Agricultural Sciences
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Abstract

The invention relates to a compound additive capable of improving the aged laying hen egg shell quality and application thereof. The compound additive is prepared from, by weight, 20-50 parts of manganese, 10-40 parts of zinc, 1-7 parts of copper, 10-40 parts of iron, 0.1-0.2 part of iodine, 0.5-4 parts of selenium, 1-10 parts of grape procyanidine, 20-60 parts of astragalus polysaccharide and 1-10 parts of hesperidin by taking aluminosilicate as a carrier (blended until the mixture is 1,000 g). Through application of the feed additive, the soft-shelled egg rate and cracked-shelled egg rate of aged hyline-grey or hyline-brown or jinghong layer hens can be significantly decreased, the ratio of the egg shell thickness to the egg shell weight and the ratio of the egg shell strength to the egg shell weight can be increased, cracks on the egg shell surface can be reduced, the thickness and width of mastoid process can be decreased, the mastoid process density can be increased, and the ultrastructure of egg shells can be improved. Therefore, the compound additive has the good application prospect in the aspect of improving the aged laying hen egg shell quality and has the economic benefit.

Description

A kind of compound additive improving aged laying hen eggshell quality and application thereof
Technical field
The present invention relates to the Feed Manufacturing field in livestock breeding industry, particularly relate to the aged laying hen eggshell quality of a kind of improvement Compound additive and application.
Background technology
Eggshell has important function for egg, and egg internal component can be protected from microorganism, environmental change and outer Power is encroached on;Hatching egg growth course is resisted microorganism invasion;In being regulated and controled by pore in embryo development procedure, free surface moisture is gentle Body exchanges;It is that fetal development supplements calcium element etc. when yolk calcium depletion.The reduction of quality of egg, not only affects the conjunction of commodity egg Lattice rate, preservation, have an effect on egg quality, has become as one of major issue that laying hen industry faces.
Quality of egg is the important economic characters of egg and appearance character.Owing to quality of egg reduces the eggshell crack caused Problem brings huge economic loss to poultry production industry and egg processing industry.According to statistics, raw in commercialization and intensive laying hen In product, damaged egg accounts for the 13~20% of total egg production, is equivalent to every plumage chicken and loses 1.32~2.0 dollars.And because of quality of egg The check that causes, soft egg, abnormal-shape egg etc. account for the 6%~10% of total egg production.In production practices, China makes because of eggshell crack The loss become is up to 500,000,000 yuan/year.With the increase of laying hen age in days, eggshell quality is gradually deteriorated, especially in the later stage of laying eggs, and egg size Increasing, eggshell becomes fragile, thin, and check adds 20% than early stage.Therefore, improve quality of egg, especially improve Egg Production of Laying Hens The quality of egg in later stage is particularly important for poultry industry safety, high-quality, efficiently production.
Use nutrition regulation means, improve quality of egg at production link, be the effective of minimizing eggshell crack generation at present Measure.Achievement in research as regulated calcium phosphorus ration, vitimin supplement, trace element etc. relevant is widely used to production practices. But, these improve the Nutritional measures of quality of egg, usually occur showing of " few being useless, has too much of a good thing " in implementation process As, not only increase cost, also result in environmental pollution.Therefore, this area novel in the urgent need to exploitation, safely, effectively, the changing of environmental protection The additive of kind quality of egg.Considering early-stage Study result, utilize the synergism between element, it is multiple that combination forms one Close additive, quality of egg can be improved more rapid, efficiently.
Summary of the invention
In view of current technology above shortcomings, the present invention provides a kind of old-age group's the compound of laying hen eggshell quality of improving to add Adding agent and application thereof, the feed additive application of the present invention can significantly reduce the soft of the blue brown/capital red eggs chicken in blue ash/sea, aged sea Check rate, improves shell thickness, eggshell strength and shell anharmonic ratio example, reduces the crackle of eggshell surface, reduces mastoid process thickness and width Degree, increases mastoid process density, improves eggshell ultrastructure.Therefore, compound additive has in terms of improving aged laying hen quality of egg There is good application prospect, there is economic benefit.
The present invention adopts the following technical scheme that
A kind of compound additive improving aged laying hen eggshell quality, the raw material including following weight portion forms: manganese 20- 50, zinc 10-40, copper 1-7, ferrum 10-40, iodine 0.1-0.2, selenium 0.5-4, grape seed procyanidine 1-10, astragalus polysaccharides 20-60, orange Skin glycosides 1-10.
As the preferred technical solution of the present invention, the raw material including following weight portion forms: manganese 30-40, zinc 17.5-35, Copper 2.5-5, ferrum 20-30, iodine 0.15-0.18, selenium 1.5-2.5, grape seed procyanidine 5-6.5, astragalus polysaccharides 30-50, Hesperidin 3-5。
As the preferred technical solution of the present invention, the raw material including following weight portion forms: manganese 35, zinc 26, copper 3.5, ferrum 25, iodine 0.16, selenium 2, grape seed procyanidine 6, astragalus polysaccharides 40, Hesperidin 4.
As the preferred technical solution of the present invention, described manganese is the Organic substance containing manganese, and described selenium is organic containing selenium Thing.
As the preferred technical solution of the present invention, also including the carrier producing mixing, described carrier is aluminosilicate, its The content of middle additive is 0.2-0.25%.
The other one side of the present invention, the application of a kind of compound additive improving aged laying hen eggshell quality, it is applied to change The quality of kind aged sea blue ash laying hen eggshell.
As the preferred technical solution of the present invention, it is applied to improve the quality of the blue brown laying hen eggshell in aged sea.
As the preferred technical solution of the present invention, it is applied to improve the quality of aged capital red eggs Ovum crusta Gallus domesticus.
As the preferred technical solution of the present invention, it is applied to improve the ultrastructure of aged capital red eggs Ovum crusta Gallus domesticus.
A kind of compound additive improving aged laying hen eggshell quality of the present invention and application thereof, have following useful effect Really: 1, the feed additive application of the present invention can significantly reduce the soft check of the blue brown/capital red eggs chicken in blue ash/sea, aged sea Rate, improves shell thickness, eggshell strength and shell anharmonic ratio example, reduces the crackle of eggshell surface, reduces mastoid process thickness and width, increases Mastoid process density, improves eggshell ultrastructure.Therefore, compound additive has good in terms of improving aged laying hen quality of egg Application prospect, has economic benefit;2, additive and aluminosilicate are mixed into the compound additive feedstuff interpolation as laying hen Agent applies in egg feedstuff, reduces the heavy economic losses that the breakage of eggshell comes to poultry industrial belt, the most cost-effective, reduces Waste.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below by use required in embodiment Accompanying drawing is briefly described, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, for ability From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings Figure.
Fig. 1 a, Fig. 1 c are the eggshell ultrastructure of process group longitudinal section.
Fig. 1 b, Fig. 1 d are the eggshell ultrastructure of matched group longitudinal section.
Fig. 1 e, Fig. 1 f are respectively the eggshell ultrastructure of process group and matched group cross section.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.
Embodiment 1
A kind of compound additive improving aged laying hen eggshell quality, the raw material including following weight portion forms: manganese 50, zinc 40, copper 7, ferrum 40, iodine 0.2, selenium 4, grape seed procyanidine 10, astragalus polysaccharides 60, Hesperidin 10, preferably manganese are organic containing manganese Thing, selenium is the Organic substance containing selenium, further preferably, also includes the carrier producing mixing, and wherein carrier is aluminosilicate, its The content of middle additive is 0.2-0.25%, during preparation egg feedstuff, first this compound additive is made an addition to premixed feed In, then mix in company with other feedstuffs.
Embodiment 2
A kind of compound additive improving aged laying hen eggshell quality, the raw material including following weight portion forms: manganese 20, zinc 10, copper 1, ferrum 10, iodine 0.1, selenium 0.5, grape seed procyanidine 1, astragalus polysaccharides 20, Hesperidin 1, preferably manganese are organic containing manganese Thing, selenium is the Organic substance containing selenium, further preferably, also includes the carrier producing mixing, and wherein carrier is aluminosilicate, its The content of middle additive is that 0.2-0.25% is configured to compound additive, during preparation egg feedstuff, by this compound additive first Make an addition in premixed feed, then mix in company with other feedstuffs.
Embodiment 3
A kind of compound additive improving aged laying hen eggshell quality, the raw material including following weight portion forms: manganese 40, zinc 35, copper 5, ferrum 30, iodine 0.18, selenium 2.5, grape seed procyanidine 6.5, astragalus polysaccharides 50, Hesperidin 5, preferably manganese are containing manganese Organic substance, selenium is the Organic substance containing selenium, further preferably, also includes the carrier producing mixing, and wherein carrier is aluminosilicate Salt, wherein the content of additive is that 0.2-0.25% is configured to compound additive, during preparation egg feedstuff, by this compound additive First make an addition in premixed feed, then mix in company with other feedstuffs.
Embodiment 4
A kind of compound additive improving aged laying hen eggshell quality, the raw material including following weight portion forms: manganese 30, zinc 17.5, copper 2.5, ferrum 20, iodine 0.15, selenium 1.5, grape seed procyanidine 5, astragalus polysaccharides 30, Hesperidin 3, preferably manganese are containing manganese Organic substance, selenium is the Organic substance containing selenium, further preferably, also includes the carrier producing mixing, and wherein carrier is sial Hydrochlorate, wherein the content of additive is that 0.2-0.25% is configured to compound additive, during preparation egg feedstuff, by this compound interpolation First agent makes an addition in premixed feed, then mixes in company with other feedstuffs.
Embodiment 5
A kind of compound additive improving aged laying hen eggshell quality, the raw material including following weight portion forms: manganese 35, zinc 26, copper 3.5, ferrum 25, iodine 0.16, selenium 2, grape seed procyanidine 6, astragalus polysaccharides 40, Hesperidin 4, preferably manganese are having containing manganese Machine thing, selenium is the Organic substance containing selenium, further preferably, also includes the carrier producing mixing, and wherein carrier is aluminosilicate, Wherein the content of additive is that 0.2-0.25% is configured to compound additive, during preparation egg feedstuff, this compound additive is first First make an addition in premixed feed, then mix in company with other feedstuffs.
Embodiment 6
The preparation of the egg feedstuff of compound additive of the present invention, by any one in embodiment 1-embodiment 5 and aluminosilicate Salt is mixed in proportion, and makes compound additive.During preparation egg feedstuff, this compound additive is added with the ratio of 0.2-0.25% It is added in mixed feed, then mixes in company with other feedstuffs.The egg feedstuff containing this compound additive prepared is put At shady and cool ventilation.
In the present invention, the egg feedstuff store method containing this additive is for depositing at room temperature shady and cool ventilation.
The another side of the present invention, the application of a kind of compound additive improving aged laying hen eggshell quality, it is applied to improve The quality of aged sea blue ash laying hen eggshell or be applied to improve the quality of the blue brown laying hen eggshell in aged sea or be applied to improve old-age group The quality of capital red eggs Ovum crusta Gallus domesticus or be applied to improve the ultrastructure of aged capital red eggs Ovum crusta Gallus domesticus, choose eggshell quality poor after Phase laying hen is as experimental animal, and the blue ash in sea, the blue brown and laying hen of red three general types in capital in sea, by the survey to quality of egg Fixed, and the observation of eggshell ultrastructure etc., find
Compound additive can significantly reduce soft check rate, improves eggshell ultrastructure, improves eggshell
Thickness and intensity, and then improve quality of egg, show that this kind of compound additive improves eggshell
The definite effect of quality is reliable.
Concrete Application Example presented below
Embodiment 7
The test of aged laying hen quality of egg is improved containing compound additive
Test the impact on aged sea blue ash laying hen quality of egg of 1 compound additive
Choose 67 week old sea orchid ash laying hen 144, be randomly divided into 2 groups, often 6 repetitions of group, 12 chickens of each repetition.1st Group is matched group, feeds Corn-soybean basal diet;2nd group is process group, adds the compound of 50mg/kg on basal diet Additive.8 weeks experimental periods.Feedstuff room temperature deposits in refrigerant ventilation.Respectively at 0d, 2,4,8 weekend of test, often repeat to take 6 pieces of eggs, measure eggshell strength, shell thickness, eggshell index and shell anharmonic ratio example (being shown in Table 1).
The impact on aged sea blue ash laying hen quality of egg of table 1 compound additive
Knowable to result of the test table 1, after compound additive feeds 4 weeks, quality of egg is not significantly improved effect, but raises After feeding 8 weeks, soft shell-breaking rate has the trend of reduction, and eggshell strength, shell thickness and shell anharmonic ratio example are notable in compound additive group Improving, eggshell index has the trend of increase, and showing that compound additive plays a role needs the regular hour to accumulate, at least 4 weeks Above.
Test the impact on the blue brown laying hen quality of egg in aged sea of 2 compound additives
Choose the blue brown laying hen 180 in 62 week old seas, be randomly divided into 2 groups, often 6 repetitions of group, 15 chickens of each repetition.1st Group is matched group, feeds Corn-soybean basal diet;2nd group is process group, adds the compound of 50mg/kg on basal diet Additive.8 weeks experimental periods.Feedstuff room temperature deposits in refrigerant ventilation.Respectively at 0d, 2,4,8 weekend of test, often repeat to take 6 pieces of eggs, measure eggshell strength, shell thickness, eggshell index and shell anharmonic ratio example (being shown in Table 2).
The impact on the blue brown laying hen quality of egg in aged sea of table 2 compound additive
Knowable to result of the test table 2, after compound additive feeds 4 weeks, soft check rate significantly reduces, and eggshell strength has The trend increased, other quality of egg are without significantly improving effect, but after feeding 8 weeks, eggshell strength, shell thickness and eggshell index Significantly improving in compound additive group, shell anharmonic ratio example has the trend of increase, shows that compound additive plays a role needs necessarily Accumulated time, more than at least 4 weeks.
Test the impact on aged capital red eggs Ovum crusta Gallus domesticus quality of 3 compound additives
Choose 55 week old capital red eggs chicken 240, be randomly divided into 2 groups, often 8 repetitions of group, 15 chickens of each repetition.1st group For matched group, feed Corn-soybean basal diet;2nd group is process group, adds the compound of 50mg/kg and add on basal diet Add agent.5 weeks experimental periods.Feedstuff room temperature deposits in refrigerant ventilation.Respectively at test the 2nd, 4,5 weekends, often repeat to take 6 pieces of chickens Egg, measures Eggshell weight, eggshell strength, shell thickness and shell anharmonic ratio example (being shown in Table 3).
The impact on aged capital red eggs Ovum crusta Gallus domesticus quality of table 3 compound additive
Knowable to result of the test table 3, after feeding 2 weeks, compound additive group significantly improves shell thickness, and other indexs Without significant difference.After feeding 4 weeks, soft check rate significantly reduces, and shell thickness dramatically increases, and eggshell strength has becoming of increase Gesture.After feeding 5 weeks, compound additive significantly increases Eggshell weight, shell thickness and eggshell strength, and shell anharmonic ratio example has increase Trend.Soft check rate, eggshell strength are to evaluate the most important index of quality of egg.Visible, compound additive can significantly improve Aged laying hen quality of egg, and add week use time at least 4 more than.
Test 4 compound additives to the aged capital Ultrastructural impact of red eggs Ovum crusta Gallus domesticus
Choose 55 week old capital red eggs chicken 240, be randomly divided into 2 groups, often 8 repetitions of group, 15 chickens of each repetition.1st group For matched group, feed Corn-soybean basal diet;2nd group is process group, adds the compound of 50mg/kg and add on basal diet Add agent.5 weeks experimental periods.Feedstuff room temperature deposits in refrigerant ventilation.The 5th weekend of test, often repeat to take 6 pieces of eggs, respectively Under 100 times and 200 times visuals field of scanning electron microscope, observe eggshell cross section and longitudinal section, observe eggshell surface crackle, breast Prominent layer thickness, mastoid process width and density (see Fig. 1 a-Fig. 1 f and table 4).
Table 4 compound additive is on the aged capital Ultrastructural impact of red eggs Ovum crusta Gallus domesticus
Knowable to result of the test Fig. 1 a-Fig. 1 f and table 4, after daily ration interpolation compound additive feeds 5 weeks, significantly improve egg The ultrastructure of shell.Be can be seen that by cross-sectional view, the crackle of compound additive group eggshell is less;Be can be seen that by longitudinal section, multiple The thickness closing additive group mastoid process layer is relatively low, and mastoid process width is less, and mastoid process arrangement is tightr.The structure of mastoid process layer can pass through shadow Ringing ultrastructure and affect eggshell mechanical characteristic, the arrangement of mastoid process layer is the tightst, and eggshell stress is the biggest, and eggshell crack power is the biggest.Can Seeing, compound additive can significantly improve the ultrastructure of aged laying hen eggshell.
Upper described, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any ripe Know the technical staff of art technology in technical scope disclosed by the invention, the change that can readily occur in or replacement, all should contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.

Claims (9)

1. the compound additive improving aged laying hen eggshell quality, it is characterised in that include the raw material group of following weight portion Become: manganese 20-50, zinc 10-40, copper 1-7, ferrum 10-40, iodine 0.1-0.2, selenium 0.5-4, grape seed procyanidine 1-10, astragalus polysaccharides 20-60, Hesperidin 1-10.
A kind of compound additive improving aged laying hen eggshell quality the most according to claim 1, it is characterised in that include The raw material composition of following weight portion: manganese 30-40, zinc 17.5-35, copper 2.5-5, ferrum 20-30, iodine 0.15-0.18, selenium 1.5- 2.5, grape seed procyanidine 5-6.5, astragalus polysaccharides 30-50, Hesperidin 3-5.
A kind of compound additive improving aged laying hen eggshell quality the most according to claim 1, it is characterised in that include The raw material composition of following weight portion: manganese 35, zinc 26, copper 3.5, ferrum 25, iodine 0.16, selenium 2, grape seed procyanidine 6, astragalus polysaccharides 40, Hesperidin 4.
4., according to the arbitrary described a kind of compound additive improving aged laying hen eggshell quality of claim 1-3, its feature exists In, described manganese is the Organic substance containing manganese, and described selenium is the Organic substance containing selenium.
A kind of compound additive improving aged laying hen eggshell quality the most according to claim 4, it is characterised in that also wrap Including the carrier producing upper mixing, described carrier is aluminosilicate, and wherein the content of additive is 0.2-0.25%.
6. the application of the compound additive improving aged laying hen eggshell quality, it is characterised in that be applied to improve aged sea The quality of blue ash laying hen eggshell.
The application of a kind of compound additive improving aged laying hen eggshell quality the most according to claim 6, its feature exists In, it is applied to improve the quality of the blue brown laying hen eggshell in aged sea.
The application of a kind of compound additive improving aged laying hen eggshell quality the most according to claim 6, its feature exists In, it is applied to improve the quality of aged capital red eggs Ovum crusta Gallus domesticus.
The application of a kind of compound additive improving aged laying hen eggshell quality the most according to claim 6, its feature exists In, it is applied to improve the ultrastructure of aged capital red eggs Ovum crusta Gallus domesticus.
CN201610307517.4A 2016-08-16 2016-08-16 Composite additive for improving eggshell quality of old laying hens and application thereof Active CN105995127B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110679746A (en) * 2019-08-21 2020-01-14 中国农业大学 Microelement premix for improving eggshell quality of old laying hens and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102178083A (en) * 2011-04-13 2011-09-14 山东和美华农牧科技股份有限公司 Premixed feed for improving eggshell quality of hyline brower laying hen
CN103918942A (en) * 2014-04-30 2014-07-16 山东和美集团有限公司 Feed formula for improving bone and eggshell quality of laying hen and preparation method of feed formula
CN105285438A (en) * 2015-10-26 2016-02-03 张静 High-efficiency laying hen feed capable of improving eggshell color through modified suberect spatholobus stems and preparation method of high-efficiency laying hen feed
CN105685517A (en) * 2016-01-29 2016-06-22 济南和美华饲料有限公司 Additive capable of improving quality of eggshells of laying hens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102178083A (en) * 2011-04-13 2011-09-14 山东和美华农牧科技股份有限公司 Premixed feed for improving eggshell quality of hyline brower laying hen
CN103918942A (en) * 2014-04-30 2014-07-16 山东和美集团有限公司 Feed formula for improving bone and eggshell quality of laying hen and preparation method of feed formula
CN105285438A (en) * 2015-10-26 2016-02-03 张静 High-efficiency laying hen feed capable of improving eggshell color through modified suberect spatholobus stems and preparation method of high-efficiency laying hen feed
CN105685517A (en) * 2016-01-29 2016-06-22 济南和美华饲料有限公司 Additive capable of improving quality of eggshells of laying hens

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
刘肇清等: "《畜牧生产新技术》", 30 April 2003, 河北科学技术出版社 *
李春丽: "《饲料与饲料添加剂》", 31 January 2006, 中国轻工业出版社 *
湖南农业大学动物科技学院: "中草药对鸡肉及蛋品质的影响", 《饲料与畜牧》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110679746A (en) * 2019-08-21 2020-01-14 中国农业大学 Microelement premix for improving eggshell quality of old laying hens and application thereof

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