WO2018002901A1 - Récipient destiné à l'éclosion d'œufs incubés dans un poulailler - Google Patents

Récipient destiné à l'éclosion d'œufs incubés dans un poulailler Download PDF

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Publication number
WO2018002901A1
WO2018002901A1 PCT/IB2017/053973 IB2017053973W WO2018002901A1 WO 2018002901 A1 WO2018002901 A1 WO 2018002901A1 IB 2017053973 W IB2017053973 W IB 2017053973W WO 2018002901 A1 WO2018002901 A1 WO 2018002901A1
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WO
WIPO (PCT)
Prior art keywords
container
levels
chicks
eggs
poultry house
Prior art date
Application number
PCT/IB2017/053973
Other languages
English (en)
Inventor
Steven VERVAEKE
Original Assignee
Vervaeke-Belavi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vervaeke-Belavi filed Critical Vervaeke-Belavi
Publication of WO2018002901A1 publication Critical patent/WO2018002901A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K41/00—Incubators for poultry
    • A01K41/06—Egg-turning appliances for incubators
    • A01K41/065—Egg drawers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K31/00—Housing birds
    • A01K31/18—Chicken coops or houses for baby chicks; Brooders including auxiliary features, e.g. feeding, watering, demanuring, heating, ventilation
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K41/00—Incubators for poultry
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K45/00—Other aviculture appliances, e.g. devices for determining whether a bird is about to lay
    • A01K45/005—Harvesting or transport of poultry

Definitions

  • the present invention relates to a container for hatching of incubated eggs in a poultry house, said container having at least three levels for hatching the incubated eggs.
  • eggs in particular, chicken eggs
  • setter trays after which the pre-incubated eggs are candled and transferred to hatching trays.
  • the eggs are transferred to the hatching trays, they are placed in a hatcher incubator, in which the incubated eggs are allowed to hatch in the hatching trays.
  • the hatched chicks are then separated from the empty eggshells and placed in transport containers after a possible vaccination.
  • the chicks are then transported to the poultry house in these transport containers.
  • the chicks are generally only given feed and water for the first time in the poultry house.
  • a first disadvantage of this technique is that the mechanical transfer of the incubated eggs can cause damage to the eggshells.
  • hairline cracks will continually be formed in a number of eggshells, which may cause the chicks in the eggs to dry out.
  • a further important disadvantage is that the day-old chicks must do without feed and water for quite some time. After all, the hatching of the eggs takes a number of days, such that the chicks, and in particular those which hatched the earliest, will remain in the hatcher incubator for one to two days. The further processing of the day-old chicks and their transportation to the poultry house will also require some time.
  • the mechanical handling of the chicks, for example, to separate the chicks from the empty eggshells, as well as the transport, is furthermore also stressful for the chicks. None of this is any good for the growth and development of the chicks or their well-being. In addition, as a result, more chicks will be lost in the poultry house, resulting in more antibiotic treatments being required.
  • the pre-incubated eggs are not transferred to the hatching trays, but the setter trays themselves are placed in the hatching trays.
  • the setter trays feature larger openings between the hatching eggs, as a result of which the newly-hatched chicks can themselves jump from the setter tray into the hatching tray located thereunder. Water and feed are then provided in this tray.
  • such a system does not solve the problem of the stress experienced by these chicks in these trays, both in the hatcher incubator and during the transport to the poultry house.
  • the setter trays can furthermore contain less hatching eggs because of the additional openings to be provided between these eggs.
  • a further disadvantage is the additional work required to put the feed and water into each of the hatching trays. Furthermore, in practice the water even needs to be applied in the form of a gel, so that no water is spilled. Indeed, this is to be avoided, because otherwise germs such as Salmonella would quickly develop in the warm conditions in the trays, and because of the high density of day-old chicks.
  • the pre-incubated eggs are transported to the poultry house in the setter trays, where the setter trays are then placed on the X-Treck® system, in particular, on its transport system.
  • the X-Treck® system is suspended in the poultry house at an adjustable height.
  • the temperature of the eggs in the setter trays can thus be controlled by raising the transport system in the poultry house up to a height where it is warmer, or lowering it to a height where it is colder. Especially nearing the hatching of the eggs, the temperature thereof increases because the activity of the chicks in the eggs increases.
  • the transport system is then located at a small height above the floor of the poultry house so that the chicks can jump off the transport system and onto the broiler house floor.
  • 'Patio system' several transport systems for the setter trays are provided above each other, each with a conveyor belt under it covered with litter on which the chicks can live until they are ready for slaughter.
  • a disadvantage of using such a cart is, however, that the eggs must be laid into the cart, which can thus lead to damage to the eggs. Furthermore, water and feed must be provided in the cart, which again requires additional work.
  • a further disadvantage of this known cart is finally that, before emptying the cart, the different trays must be taken apart and placed on the floor of the poultry house to allow the chicks to move to the floor of the poultry house. In a situation such as this there is a risk of infection, both of the poultry house by the trays, and of the trays by the poultry house.
  • WO 2016/053088 proposes placing the incubated eggs in a cardboard container with which the eggs are then transported to the poultry house.
  • the incubated eggs are thus transported from the hatchery to the broiler house in these cardboard containers.
  • This system is used in practice under the name One2Born'.
  • the cardboard containers consist of egg cartons containing additional holes for the aeration of the eggs and for controlling their temperature.
  • the containers stand on cardboard legs so that the eggs are not directly on the floor of the poultry house.
  • the cardboard containers are biodegradable, they create extra waste in the poultry house that must be removed.
  • a further disadvantage of the cardboard containers is that they are delivered in folded form and that a considerable amount of manual labour is required to set up the containers. Not only purchasing the cardboard containers, but also setting them up, thus involves additional costs.
  • the eggs also still need to be transferred into the cardboard containers. It has been found in practice that such a transfer step each time causes an additional average loss of approximately 0.5%, especially if the eggs are to be positioned in the cavities provided for this purpose in the egg cartons. Indeed, the eggs will not always be positioned completely correctly in relation to these cavities, so that they will make contact the walls of the cavities when placing them in the cavities. Due to the fragility of the eggshells, this will cause a considerable amount of hairline cracks in the eggshells.
  • the object of the invention is to provide a container for allowing pre-incubated eggs to hatch in a poultry house, which enables to avoid a high density of newly hatched chicks and which also enables reducing the risk of infection.
  • the container according to the present invention is characterised in that it is provided with at least one transport system for removing the hatched chicks from this container from the various levels of the container, said transport system being common to said levels.
  • the transport system ensures that the newly hatched chicks can leave the container, also from the highest levels.
  • the chicks thus end up in the poultry house, where they immediately have water and food at their disposal, and where they will also have all the space and rest needed to grow and develop optimally.
  • the transport system is common to all levels, i.e., this transport system is connected to each level.
  • this transport system is connected to each level.
  • chicks that leave a specific level partially use the same transport system as chicks leaving a lower level via the at least one common transport system. This provides a compact transport system where it is unnecessary to provide a separate transport system for each level.
  • a transport system in the form of a chute is known from US1675105A, wherein an incubator is connected with a brooder (via a chute) where the chicks can stay for some time before they are brought to the poultry house.
  • a chute with a hatching cart as described in EP1414291 would result in a separate transport system for each level, which is, as described above, disadvantageous compared to a transport system that is common to each level.
  • the container is on wheels and is thus formed by a cart.
  • the container can thus easily be moved, in order to, for example, wheel it in and out of the poultry house, or in an out of a truck, without the need for a forklift, for example.
  • a further advantage of the fact that the container is on wheels is that the container itself makes no contact with the poultry house, such that the outside of the container also does not come into contact with the poultry house. After using the container, its exterior, or possibly only its wheels, can be easily and quickly disinfected to avoid any risk of infection.
  • the different levels are adapted for receiving one or more egg trays containing the pre-incubated eggs.
  • the egg trays are preferably formed by the setter trays in which the eggs were pre-incubated.
  • the pre-incubated eggs do not need to be transferred, and there is thus no risk that they can be damaged. Only pre-incubated eggs that do not appear to contain a chick during candling must then be replaced with an egg with a viable chick. Introducing the pre-incubated eggs into the container with an egg tray can also be done quickly. Due to the complex design of the egg trays with the high degree of openness that is needed for controlling the temperature of the eggs during incubating and hatching, these egg trays are in fact rather difficult to clean. In particular, the egg trays have many corners and edges where soiling by manure is not easy to remove.
  • the chicks are not fed, as a result of which they also do not produce manure. After hatching, the chicks generally also quickly leave the container, and it is not necessary to first wait until all the eggs have hatched.
  • the transport system of the container has a drop system for removing the hatched chicks from the closed container with the aid of gravity
  • This drop system has at least one chute for sliding down the hatched chicks; preferably said chute is formed by at least a portion of a side wall of the container that is inclined with respect to said levels, wherein, advantageously, said portion of the side wall can be placed in an upright position with respect to said levels, at least one open space being formed between said levels and said chute, in which the hatched chicks can drop down and subsequently end up on said chute.
  • this drop system will include multiple chutes for sliding down the hatched chicks, said chutes being arranged in a zigzag pattern so that the chicks can then end up going from one chute to a next chute.
  • this drop system will include at least one vertical open space through which the hatched chicks can fall down, this open space being provided with transverse elements for breaking the fall of the chicks.
  • these transverse elements are resilient.
  • the transport system need not contain any moving parts to remove the chicks from the container.
  • the transport system can thus be carried out in a simple manner, with no risk that the chicks can be hurt by the presence of moving parts.
  • the chicks themselves do not weigh much and can easily undergo a free fall from a certain height without being hurt in the process.
  • the free drop height can be limited, whereby, if the chute forms at least one side wall, the drop height per level will also be substantially the same everywhere.
  • the free drop height will also remain limited as a result of the transverse elements that will break the fall of the chicks.
  • the maximum height the chicks can fall freely in the transport system will be smaller than 0.5 m, and more preferably 0.4 m.
  • the container in a preferred embodiment, it will have at least a temperature control mechanism to control the temperature in the container, the container preferably furthermore having an air circulation mechanism for creating a uniform temperature in the container.
  • the temperature control mechanism can be part of a climate control mechanism that not only allows the temperature to be controlled, but also the air humidity and/or CO 2 concentration in the container to be controlled.
  • the container will contain at least one door for opening the container, said door preferably being a hinged door and said transport system being secured at least partially against an inside of this door.
  • the container can not only easily be filled with eggs, but it can also be easily cleaned or disinfected if necessary.
  • this part of the transport system By attaching the transport system at least partially against the inside of a hinged door, this part of the transport system opens together with the door. This part therefore no longer forms an obstacle to placing the eggs in the container and this part of the transport system can also be easily cleaned or disinfected, if necessary.
  • the invention further relates to the use of the container according to the invention to allow hatching of incubated eggs, wherein pre-incubated eggs are introduced into the container on at least a number of said levels, the pre-incubated eggs are allowed to hatch in the container, and the hatched chicks are allowed to leave the container via the transport system while container is located in the poultry house.
  • Figure 1 represents a schematic side view of a wheeled container according to the invention with two doors, one of which is open;
  • Figure 2 shows a schematic top view of the container according to Figure 1 ;
  • Figure 3 shows a schematic top view of a container with an alternative transport system for removing the chicks from the container
  • Figure 4 shows a schematic top view of a container with a further alternative transport system for removing the chicks from the container;
  • Figure 5 represents a schematic side view of the container of Figure 4 in its extended position
  • FIG 6 shows a schematic side view of the container of Figure 4 on which the transparent side walls are shown.
  • the invention relates generally to a container 1 for hatching of pre-incubated eggs in a poultry house. For example, in the case of chickens, these eggs are pre-incubated for about eighteen days, before being placed in the container 1.
  • the eggs are pre-incubated in so-called setter trays 2. These trays 2 are formed by an open grid in which the eggs can be placed upright. Such setter trays 2 can contain a relatively large number of eggs, for example, one hundred and fifty eggs.
  • the container 1 has at least three levels 3 on which the eggs can be placed to hatch.
  • the container 1 has nine levels 3, on each of which two egg trays 2 can be placed with one hundred and fifty eggs.
  • These egg trays 2 can be specially designed to place the eggs in the container 1.
  • the egg trays 2 are used in which the eggs were pre-incubated during the setting stage. In this way, the eggs do not need to be transferred.
  • the levels 3 of the container 1 are preferably formed by an open grid 4, which in the shown container 1 is formed by metal rods over which the setter trays 2 can easily be slid into the container 1.
  • the use of an open grid 4 offers the advantage that the air can flow freely along the eggs to keep them at the desired temperature.
  • the container 1 itself is preferably closed such that the climate can be controlled therein. However, the necessary ventilation openings can be provided in the container for fresh air supply.
  • the temperature in the container 1 can be controlled by one or more heating elements 5, which may also provide cooling.
  • the interior of the container can also be cooled by aspiration of broiler house air through the ventilation openings.
  • the climate control system may further include an installation for controlling the CO 2 content in the container 1 (for example, to make the eggs hatch more uniformly) and a system to control the air humidity in the container 1.
  • the envelope of the container 1 is formed by walls of which preferably at least one side wall is provided with at least one door 7.
  • This door can be a sliding door or a roller-shutter door, but it is preferably a hinged door that can be opened.
  • both the left side wall and the right-side wall are provided with two hinged doors 7.
  • These doors 7 form substantially the entire side wall such that egg trays 2 can be easily placed in the container 1.
  • the doors 7, and thus both the side walls are made of a transparent material, in particular of Plexiglas (polymethyl methacrylate). Through these transparent walls, the chicks also get enough light to move out of the container 1.
  • the container 1 is preferably on legs or on wheels 8 such that it does not make contact with the floor of the poultry house. In this way, the risk of infection of the container 1 is limited. As shown in the figures, the container 1 is preferably on wheels 8 such that it can be driven in and out of the poultry house.
  • the egg trays 2 are then placed in the container 1 outside the poultry house, such that there is no chance of infection of the egg trays 2.
  • the egg trays 2 are preferably placed in the container 1 in the hatchery, such that the container serves to transport the eggs.
  • the climate in the container can be controlled by the climate control system, which can be equipped with batteries for this purpose, to provide the required energy at least during transport.
  • the container 1 is provided with a common transport system for removing the hatched chicks from the container 1 from the various levels 3 of the container 1.
  • This transport system extends between the different levels 3 and a lower part of the container, in particular, between these levels 3 and the underside 9 of the container 1.
  • the transport system is preferably a one-way transport system, provided such that once the chicks have left the container, they can no longer get back into the container. This can easily be achieved because the chicks drop or slide from the container from a predetermined height.
  • the transport system may contain moving parts, such as a belt conveyor or an elevator system, for transporting the chicks from the container, but preferably the transport system will include a drop system for removing the hatched chicks from the container 1 with the aid of gravity.
  • moving parts such as a belt conveyor or an elevator system
  • the drop system has a number of inclined gutters 10 each forming a chute for the chicks.
  • the gutters 10 are located along the inside of both lateral sides of the container 1 and are in particular attached against the doors 7 which form the side walls. The gutters 10 therefore open together with the door, and thus do not interfere with accessing the container.
  • openings 11 are provided on both sides next to the egg tray 2, through which the chicks can drop or jump onto the gutters 10.
  • the gutters 10 form a zigzag pattern and are arranged such that the chicks subsequently go from one chute to another, until they reach the bottom of the container 1 on the floor of the poultry house. The drop height of the chicks is always so small that they cannot be hurt while falling.
  • I and 2 include four separate drop systems, namely, one drop system for each door 7 or two drop systems for each egg tray 2 as shown in Figure 2.
  • a chick may end up on one of the four drop systems.
  • Each of these drop systems is accessible from each level as shown in Figure 1 , thus forming a common drop system.
  • transverse elements 12 break the fall of the chicks so they do not injure themselves.
  • the transverse elements 12 are preferably resilient, and can be formed in particular by rubber fingers. In the embodiment according to Figure 3, the transverse elements 12 are mounted alternately against the grid 4 and against the side of the container 1. As a result, these transverse elements 12 can be made longer, so that their resilient effect is greater.
  • the embodiment shown in Figure 3 also includes four separate drop systems, namely, one drop system for each door 7 or two drop systems for each egg tray 2 as shown in Figure 3.
  • a chick may end up on one of the four drop systems.
  • Each of these drop systems is also accessible from each level, thus forming a common drop system.
  • the side walls are always formed by the doors 7, and the gutters 10 and half of the transverse elements 12, respectively, are attached against the doors 7, if necessary, they can be cleaned and disinfected easily.
  • the gutters 0 are replaced with substantially planar overlapping plates 13 which form opposed side walls of the container 1.
  • the plates 13 form an open space 17 which extends adjacent to the egg trays 2 alongside the two sides of the container 1.
  • a hinge pin 18 is provided at the bottom of the container 1 , via which the different levels 3 can be slid apart as shown in Figure 5.
  • the plates 13 end up slanted so that they form one long chute along which the chicks can slide down from the different levels 3 to the floor of the poultry house.
  • the angle of inclination of the plates 13 is chosen such that the chicks cannot get hurt while sliding down, so that they can safely reach the floor of the poultry house.
  • the distance between the plates 13 and the levels 3 also contributes to the drop height, so that it is also chosen such that the chicks cannot be hurt by their fall down to the chute formed by the plates 13 in the extended position of the container 1.
  • An advantage of the transport system shown in Figures 4 to 6 is that the drop height from one level to the transport system is independent of the position where the chick leaves the level, while this is not the case with the transport systems shown in Figures 1 to 3.
  • the drop height of a chick on the upper level is higher in the middle of this level than completely to the left on this level.
  • FIG. 3 to 6 includes only two separate drop systems, namely one drop system for each side wall as shown in Figure 5.
  • a chick may end up on one of the two drop systems.
  • Each of these drop systems is accessible from each level as shown in Figure 5, thus forming a common drop system.
  • the container 1 itself is preferably closed, such that the climate can be controlled therein.
  • the roof of the container 1 comprises plates 14, 15 that can slide over each other. Concretely, the plates 14 slide outwardly when sliding open the container 1 and the plate 15 stays horizontally in the same position. All plates 14, 15 also move vertically while sliding open. Due to the central position of plate 15, it is advantageous to provide one or more fans 6 in this plate 15, which ensure a uniform distribution of the temperature.
  • one or more heating elements which can preferably also provide cooling, may be provided in the plate 15.
  • a double door 7 is provided which is fixedly positioned on the container 1 and each level is provided with a cover plate 16 as shown in Figure 6.
  • the double door 7 provides a seal of the left side wall and the right-side wall of the container 1 in the closed position and also ensures that the space between the levels 3 in the open position is closed off.
  • the cover plates 16 slide together with the levels 3 and thus provide a seal of the levels both in the slid closed and slid open position of the container 1.
  • the double doors 7 can be opened, and each of the cover plates 16 can be lifted upwards.
  • the double doors 7 and the cover plates 16 will be transparent, in particular, made from polymethyl methacrylate, so that, without opening the container 1 , it is possible to check how many of the eggs have already hatched.

Abstract

L'invention concerne un récipient (1) qui est de préférence sur des roues (8) et qui comprend au moins trois niveaux (3) sur lesquels les œufs préincubés peuvent éclore. En outre, il comporte un système de transport permettant de retirer les poussins éclos du récipient (1) à partir des différents niveaux (3) du récipient (1). Ce système de transport est en particulier un système de chute qui comprend, par exemple, des goulottes en forme de gouttière (10) ou d'autres éléments destinés à empêcher les poussins de se blesser lors de la chute ou du glissement hors du récipient (1). Avant l'éclosion des œufs, le récipient (1) est placé dans le poulailler de sorte que les poussins qui viennent d'éclore terminent directement dans le poulailler. Les poussins ont donc immédiatement de l'eau et de la nourriture à leur disposition et ont également tout l'espace et tout ce dont ils ont besoin pour leur croissance et leur développement optimaux.
PCT/IB2017/053973 2016-06-30 2017-06-30 Récipient destiné à l'éclosion d'œufs incubés dans un poulailler WO2018002901A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2016/5520 2016-06-30
BE2016/5520A BE1023633B1 (nl) 2016-06-30 2016-06-30 Container voor het in een pluimveestal laten uitkomen van voorgebroede eieren

Publications (1)

Publication Number Publication Date
WO2018002901A1 true WO2018002901A1 (fr) 2018-01-04

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BE (1) BE1023633B1 (fr)
NL (1) NL2019158B1 (fr)
WO (1) WO2018002901A1 (fr)

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CN109717148A (zh) * 2019-03-18 2019-05-07 安徽省农业科学院水产研究所 一种可折叠多层床式甲鱼孵化装置
DE202018102779U1 (de) * 2018-05-18 2019-09-04 Big Dutchman International Gmbh Brutvorrichtung für das Ausbrüten und die Aufzucht von Küken
CN111165389A (zh) * 2020-01-16 2020-05-19 中南百草原集团有限公司 一种基于家禽孵化用的提高鸡蛋孵化率的破壳设备

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CN109258518B (zh) * 2018-09-10 2023-12-05 南宁利腾农业科技有限公司 家禽育种出苗框
CN110122375B (zh) * 2019-05-23 2023-05-09 杭州朗拓生物科技有限公司 一种层叠笼禽舍内控制家禽啄斗的方法及装置

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WO2016053088A1 (fr) 2014-10-03 2016-04-07 Agri-Invent B.V. Support d'incubation finale destiné à un procédé d'incubation d'oeufs à couver et procédé associé

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US1675105A (en) 1923-03-26 1928-06-26 Roy A Jordan Incubator
US3702600A (en) * 1970-12-09 1972-11-14 Charles R Bright Poultry loading apparatus
US3741417A (en) * 1971-01-19 1973-06-26 M Blankenship Poultry handling system
US4380969A (en) * 1981-10-13 1983-04-26 Thomas Doverd E Apparatus for unloading poultry
NL1012453C1 (nl) 1999-06-28 2001-01-02 Vencomatic B V Dierenverblijf.
EP1414291A1 (fr) 2000-10-25 2004-05-06 Cornelius Johannes Maria Kuijpers Procede de production et d'elevage avicole, et systeme de couvoir, moyens de transport et exploitation avicole permettant l'execution de ce procede
EP1414291B1 (fr) * 2000-10-25 2006-06-07 Vencomatic B.V. Procede de production et d'elevage avicole, ainsi que systeme de couvoir et exploitation avicole permettant l'execution de ce procede
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DE202018102779U1 (de) * 2018-05-18 2019-09-04 Big Dutchman International Gmbh Brutvorrichtung für das Ausbrüten und die Aufzucht von Küken
CN109717148A (zh) * 2019-03-18 2019-05-07 安徽省农业科学院水产研究所 一种可折叠多层床式甲鱼孵化装置
CN109717148B (zh) * 2019-03-18 2021-04-20 安徽省农业科学院水产研究所 一种可折叠多层床式甲鱼孵化装置
CN111165389A (zh) * 2020-01-16 2020-05-19 中南百草原集团有限公司 一种基于家禽孵化用的提高鸡蛋孵化率的破壳设备

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