JP7054785B2 - Lighting system and diurnal poultry breeding method - Google Patents

Description

The present invention relates to a lighting system used for breeding diurnal poultry and a method for breeding diurnal poultry.

Chicken breeding is actively practiced in various countries around the world, including Japan, as an industry. For example, Patent Document 1 discloses a breeding method in which the diameter of a bright part illuminated by a light source in a poultry house is gradually increased as the chicks grow.

Japanese Unexamined Patent Publication No. 05-199823

In the breeding of diurnal poultry such as layers, which are chickens for egg collection, efficient egg collection is required.

The present invention provides a lighting system capable of efficiently collecting eggs from diurnal poultry and a method for breeding diurnal poultry.

The lighting system according to one aspect of the present invention is a lighting system used for breeding daytime poultry, and is based on the control of the control unit and the control unit during the spawning season of the daytime poultry. It is provided with a light source unit that irradiates the rearing region of the daytime poultry with light having an emission peak wavelength of 600 nm or more and 650 nm or less, and the brightness of the light during the light emission period when the light is irradiated to the breeding region. The ratio of the bottom of the brightness of the light to the peak of the light is 60% or more, and the average illuminance in the breeding area is 23 lux or less.

In the method for raising chickens according to one aspect of the present invention, the breeding region of the daytime poultry is irradiated with light having an illuminance peak wavelength of 600 nm or more and 650 nm or less during the spawning season of the daytime poultry. The ratio of the bottom of the light brightness to the peak of the light brightness is 60% or more in the light emitting period in which the breeding area is irradiated, and the average illuminance in the breeding area is 23 lux. It is as follows.

According to the lighting system of the present invention and the method for breeding diurnal poultry, eggs can be efficiently collected from diurnal poultry.

FIG. 1 is a diagram showing an outline of the lighting system according to the first embodiment. FIG. 2 is a block diagram showing a functional configuration of the lighting system according to the first embodiment. FIG. 3 is a diagram showing an example of the circuit configuration of the light emission control circuit. FIG. 4 is a diagram showing another example of the circuit configuration of the light emission control circuit. FIG. 5 is a diagram showing an example of an emission spectrum of red light emitted by a light source unit. FIG. 6 is a diagram showing an example of an emission spectrum of white light emitted by a light source unit. FIG. 7 is a diagram showing an example of the current applied to the light source unit in the embodiment. FIG. 8 is a diagram showing the results of comparative tests. FIG. 9 is a flowchart of light emission control according to the second embodiment.

Hereinafter, embodiments will be described with reference to the drawings. It should be noted that all of the embodiments described below show comprehensive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps, the order of steps, and the like shown in the following embodiments are examples, and are not intended to limit the present invention. Further, among the components in the following embodiments, the components not described in the independent claim indicating the highest level concept are described as arbitrary components.

It should be noted that each figure is a schematic view and is not necessarily exactly shown. Further, in each figure, the same reference numerals are given to substantially the same configurations, and duplicate explanations may be omitted or simplified.

(Embodiment 1)
[Constitution]
First, the configuration of the lighting system according to the first embodiment will be described. FIG. 1 is a diagram showing an outline of the lighting system according to the first embodiment. FIG. 2 is a block diagram showing a functional configuration of the lighting system according to the first embodiment.

As shown in FIG. 1, the lighting system 10 according to the first embodiment is a lighting system used for breeding diurnal poultry, and more specifically, the lighting system 10 is lighting for spawning chickens. It is a system. The lighting system 10 is a lighting system mainly for hens. The lighting system 10 is installed in, for example, a poultry house 60. As shown in FIGS. 1 and 2, the lighting system 10 includes a lighting device 20 and a control device 30. Hereinafter, each device will be described in detail.

[Lighting device]
First, the lighting device 20 will be described in detail. The lighting device 20 is installed on the ceiling of the poultry house 60 and illuminates the inside of the poultry house 60. At least one lighting device 20 may be installed on the ceiling of the poultry house 60, and a plurality of lighting devices 20 may be installed. Specifically, the lighting device 20 irradiates the breeding area 70 (floor of the poultry house 60) in which a plurality of chickens are bred with light. As a result, the chickens in the poultry house 60 are irradiated with light. The type of chicken raised in the poultry house 60 is, for example, a layer, but other types may be used. The lighting device 20 includes a light emission control circuit 21 and a light source unit 22.

[Lighting device: Light emission control circuit]
The light emission control circuit 21 is a circuit that supplies electric power to the light source unit 22 in response to a control signal output from the control device 30 (control unit 31). FIG. 3 is a diagram showing an example of the circuit configuration of the light emission control circuit.

As shown in FIG. 3, the light emission control circuit 21 is, for example, a flyback type switching power supply circuit. The light emission control circuit 21 includes a rectifier circuit DB, a smoothing capacitor C1, a power supply control unit 21a, a switching element S1, a transformer T, a diode D1, and a smoothing capacitor C2. In addition, in FIG. 3, the control device 30 and the light source unit 22 are also shown. In the example of FIG. 3, the power supply control unit 21a operates based on the control of the control unit 31 included in the control device 30, but the power supply control unit 21a may be realized as a part of the function of the control unit 31.

The rectifier circuit DB is a circuit that converts AC power obtained from the power system 90 into DC power. Specifically, the rectifier circuit DB is a full-wave rectifier circuit configured by a diode bridge. The smoothing capacitor C1 smoothes the DC power output from the rectifier circuit DB. The smoothing capacitor C1 is, for example, an electrolytic capacitor.

The power supply control unit 21a is a control circuit (control IC) that controls switching (repeating on and off) the switching element S1 at high speed. The switching frequency is, for example, 20 kHz or more and 200 kHz or less. The switching element S1 is, for example, an FET. When the switching element S1 is switched by the power supply control unit 21a, energy is transmitted from the primary winding of the transformer T to the secondary winding by electromagnetic induction, and a current flows through the secondary winding. This current is rectified by the diode D1 and smoothed by the smoothing capacitor C2. The smoothing capacitor C2 is, for example, an electrolytic capacitor.

The light emission control circuit 21 is not limited to such a circuit configuration. FIG. 4 is a diagram showing another example of the circuit configuration of the light emission control circuit 21.

As shown in FIG. 4, the light emission control circuit 21 may include a filter circuit F that reduces noise included in AC power obtained from the power system 90 and noise flowing out to the power system 90. The filter circuit F is composed of, for example, a choke coil and a capacitor.

Further, in the circuit configuration of FIG. 3, the power supply control unit 21a monitors the current flowing through the primary winding and controls to change the switching frequency or the duty ratio so that the monitored current becomes substantially constant. On the other hand, in the circuit configuration of FIG. 4, the light emission control circuit 21 has a monitor circuit M and an insulation circuit I, and controls to change the switching frequency or the duty ratio so that the current flowing through the light source unit 22 becomes substantially constant. I do. Specifically, the power supply control unit 21a acquires the current value from the monitor circuit M that monitors the current flowing through the light source unit 22 via the insulation circuit I having an insulating element such as a photocoupler, thereby causing the light source unit 22. Control is performed to change the switching frequency or duty ratio so that the current flowing through the circuit becomes almost constant. As described above, the circuit configuration of the light emission control circuit 21 is not particularly limited.

[Lighting device: Light source unit]
When the power supply from the light emission control circuit 21 to the light source unit 22 is started based on the control of the control unit 31, the light source unit 22 emits light having an emission peak wavelength of 600 nm or more and 650 nm or less. The emission spectrum of the light source unit 22 has, for example, the maximum brightness at the emission peak wavelength.

The light source unit 22 is, for example, a light emitting module having a red LED (Light Emitting Diode) as a light emitting element, and emits red light having a light emitting peak wavelength of 600 nm or more and 650 nm or less. FIG. 5 is a diagram showing an example of an emission spectrum of red light emitted by the light source unit 22. In FIG. 5, the emission spectra of two types of red monochromatic light shown by the solid line and the broken line are shown.

It is not essential that the light source unit 22 emits red light. For example, the light source unit 22 may emit white light having an emission peak wavelength of 600 nm or more and 650 nm or less. Specifically, the light source unit 22 may emit white light having a color temperature of 3500 K or less. FIG. 6 is a diagram showing an example of an emission spectrum of white light emitted by the light source unit 22. In FIG. 6, the emission spectra of two types of white light shown by the solid line and the broken line are shown. Of the two types of emission spectra, the emission spectrum having the longer emission peak wavelength is the emission spectrum of 2000K white light.

The light source unit 22 that emits white light is realized, for example, by a combination of a blue LED and a phosphor. Specifically, the light source unit 22 that emits white light is realized by a COB (Chip On Board) type light emitting module, an SMD (Surface Mount Device) type light emitting module, a remote phosphor type light emitting module, or the like. .. The light source unit 22 that emits white light may be an incandescent lamp, a fluorescent lamp, or the like. The white light emitted by the light source unit 22 may be white on the blackbody locus or may be white off the blackbody locus.

When white light is emitted from the light source unit 22, the workability (for example, human visibility) of the worker in the poultry house 60 can be improved as compared with the case where red light is emitted.

[Control device]
Next, the control device 30 will be described. The control device 30 is a controller that controls one or more lighting devices 20. The control device 30 includes a control unit 31, a storage unit 32, and a timekeeping unit 33.

The control unit 31 controls the light emission of the light source unit 22 of the lighting device 20. The control unit 31 is specifically realized by a microcomputer, but may be realized by a processor or a circuit. The control unit 31 may be realized by a combination of two or more of a microcomputer, a processor, and a circuit. As described above, the control unit 31 may include the power supply control unit 21a of the light emission control circuit 21.

The storage unit 32 is a storage device that stores a control program executed by the control unit 31 when the control unit 31 includes a processor, a microcomputer, or the like. The storage unit 32 is realized by, for example, a semiconductor memory.

The timekeeping unit 33 measures the time. The timekeeping unit 33 measures, for example, the current date and time (including the date and time). The timing unit 33 is specifically a timer circuit, a real-time clock IC, a software timer, or the like, but may have any embodiment. The time information indicating the time measured by the time measuring unit 33 is output to the control unit 31, and the control unit 31 controls the light source unit 22 according to the time measured by the time measuring unit 33.

[Comparative test]
The inventors have found that the spawning rate and the spawning daily amount can be increased by irradiating the breeding region 70 of the spawning chicken with light having an emission peak wavelength of 600 nm or more and 650 nm or less during the spawning period of the spawning chicken. rice field.

The inventors irradiate the breeding area 70 of the spawning chicken with white light emitted by an incandescent light bulb during the spawning season of the spawning chicken and the example using red light as the light having the emission peak wavelength of 600 nm or more and 650 nm or less. A comparative test was conducted with the comparative example. FIG. 7 is a diagram showing an example of the current applied to the light source unit 22 in the embodiment.

As shown in FIG. 7, in the embodiment, the current applied to the light source unit 22 fluctuates periodically, and the ratio of the current bottom Ib to the current peak Ip is 60% or more. The current applied to the light source unit 22 is, in other words, the brightness of the light source 22. That is, in the comparative test, during the light emitting period in which the light from the light source unit 22 is constantly irradiating the breeding region 70, the light source unit 22 blinks periodically, and the brightness of the light with respect to the peak of the brightness of the light The proportion of the bottom is 60% or more and less than 100%. As a result, the flicker of brightness in the poultry house 60 is suppressed, and the work efficiency of the worker is improved.

In the embodiment, the light source unit 22 may emit light with a substantially constant brightness with almost no fluctuation. That is, in the light emitting period in which the breeding region 70 is constantly irradiated with light, the ratio of the bottom of the light brightness to the peak of the light brightness may be 60% or more and 100% or less.

Further, in the example, the average illuminance in the breeding area 70 was 23 lux or less during the light emitting period in which the light was applied to the breeding area 70.

On the other hand, in the comparative example, an incandescent light bulb that emits white light was used as the light source unit. In the comparative example, the ratio of the bottom of the light brightness to the peak of the light brightness and other conditions such as the average illuminance are the same as those in the example.

In the comparative test, hundreds of spawning chickens (that is, hens) belonging to the spawning season were bred under the two lighting conditions of the comparative example and the example, and the spawning rate and the spawning daily amount in the spawning season were bred. Was calculated. The spawning chickens used in the test were bred under the same conditions before the spawning season. The spawning period is, for example, a period from 150 days after birth to about 500 days after birth of the spawning chicken.

FIG. 8 is a diagram showing the results of comparative tests. FIG. 8 shows the relative values of the egg-laying rate and the egg-laying day amount under the lighting condition of the example when the egg-laying rate and the egg-laying day amount under the lighting condition of the comparative example are set to 100%.

As shown in FIG. 8, by using the lighting conditions of the examples in both of the two comparative tests, the spawning rate and the spawning day amount are improved as compared with the lighting conditions of the comparative example. Regarding the feed conversion ratio, which indicates the amount of feed required to obtain 1 kg of eggs, there is no significant difference between the lighting conditions of the examples and the lighting conditions of the comparative examples. That is, according to the embodiment, the egg-laying rate and the egg-laying day amount can be improved without increasing the amount of feed given to the spawning chicken.

Further, although not shown, when divided into three periods of the spawning season, the spawning rate and the spawning day amount are improved in the lighting conditions of the examples as compared with the lighting conditions of the comparative example in each of the three periods. Was done.

In the lighting conditions of the examples, red light was used as the light having an emission peak wavelength of 600 nm or more and 650 nm or less, but the same effect can be obtained even if white light is used as light having an emission peak wavelength of 600 nm or more and 650 nm or less. Is obtained. In this case, the lower the color temperature of the white light (the closer the color is to red), the more the egg-laying rate and the spawning day amount can be improved. According to the findings of the inventors, the color temperature of white light that can sufficiently improve the spawning rate and the spawning daily amount is, for example, 2400K or less. In order to further improve the spawning rate and the spawning day amount, the color temperature of the white light is preferably 2000K or less.

Further, it has been confirmed that if the breeding area 70 is too bright, the effect of improving the egg-laying rate and the egg-laying day amount is reduced. Specifically, it has been confirmed that when the average illuminance in the breeding area 70 becomes larger than 23 lux, the effect of improving the spawning rate and the spawning day amount decreases. Therefore, it is useful that the average illuminance in the breeding area 70 is 23 lux or less in order to sufficiently obtain the effect of improving the spawning rate and the spawning daily amount.

(Embodiment 2)
The light emitted by the light source unit 22 does not need to be irradiated to the breeding area 70 during the entire spawning season, but may be irradiated to the breeding area 70 during at least a part of the spawning period.

For example, the control unit 31 of the lighting system 10 turns off the light source unit 22 and the light emission period during which the light source unit 22 irradiates the breeding area 70 based on the time information output by the time measuring unit 33. It is possible to control the period to be repeated periodically. If such control is performed when the inside of the poultry house 60 is in a light-shielded state where outside light does not enter the poultry house 60, the laying chickens in the poultry house 60 are made to think that the light emitting period is during the daytime, and the light is turned off. The period can be illusioned as nighttime.

In general, one laying hen can lay at most one egg per day and cannot lay multiple eggs per day. According to the above control, if the repeating cycle of the light emitting period and the extinguishing period is set to a predetermined period of less than 24 hours, the spawning chicken has an illusion that the predetermined period of less than 24 hours is one day, and 1 in a period shorter than 24 hours. Since one egg can be obtained, the total amount of eggs obtained during the spawning season can be increased. The repeating cycle of the light emitting period and the extinguishing period means a period in which the light emitting period and the extinguishing period following the light emitting period are combined.

Hereinafter, such light emission control will be described as the second embodiment. FIG. 9 is a flowchart of light emission control according to the second embodiment. In the following, an example in which the repetition period is 23.5 hours will be described. That is, in the following, an example in which the repetition cycle is 23 hours or more and less than 24 hours will be described.

In the spawning season, the control unit 31 of the control device 30 causes the light source unit 22 to emit light (S11). In other words, the light source unit 22 irradiates the breeding region 70 of the laying hen with light having an emission peak wavelength of 600 nm or more and 650 nm or less during the laying period of the laying hen under the control of the control unit 31.

Subsequently, the control unit 31 determines whether or not the scheduled light emission period has ended based on the time information output from the time measuring unit 33 (S12). The scheduled light emission period is, for example, 11.75 hours.

When the control unit 31 determines that the scheduled light emission period has not ended (No in S12), the control unit 31 continues the light emission of the light source unit 22 (S11). On the other hand, when the control unit 31 determines that the scheduled light emission period has ended (Yes in S12), the light source unit 22 turns off the light source unit 22 (S13).

Subsequently, the control unit 31 determines whether or not the scheduled turn-off period has ended based on the time information output from the time measuring unit 33 (S14). The scheduled turn-off period is, for example, 11.75 hours.

When the control unit 31 determines that the scheduled turn-off period has not ended (No in S14), the control unit 31 continues the turn-off state of the light source unit 22 (S13). On the other hand, when the control unit 31 determines that the scheduled turn-off period has expired (Yes in S14), the light source unit 22 emits light (S11).

According to the light emission control of the second embodiment as described above, it is possible to make the laying hens have the illusion that the predetermined period of less than 24 hours (for example, 23.5 hours) is one day. As a result, one egg can be obtained in a period shorter than 24 hours, so that the total amount of eggs obtained during the spawning season can be increased. Further, as described above, the length of the scheduled light emission period and the length of the scheduled light extinguishing period do not have to be the same, and may be different. The total of the scheduled light emission period and the scheduled light extinguishing period may be less than 24 hours.

In the light emission control according to the second embodiment, the light source unit 22 irradiates the breeding region 70 of the spawning chicken with light having a light emission peak wavelength of 600 nm or more and 650 nm or less, for example. However, in the control of the second embodiment, the light emitting period and the extinguishing period may be repeated alternately, and in the light emitting period, the light source unit 22 irradiates light that does not satisfy the above-mentioned emission peak wavelength requirement. May be good.

By the way, if the repeating cycle of the light emitting period and the extinguishing period is significantly shorter than 24 hours, there is a concern that the spawning chicken will be loaded and the total amount of eggs obtained during the spawning period will decrease. When the repetition cycle is 23 hours or more and less than 24 hours, it is possible to suppress the load on the spawning chicken and suppress the decrease in the total amount of eggs obtained during the spawning period due to the load.

The control unit 31 may fade out the light source unit 22 when transitioning from the light emission period to the extinguishing period. That is, the control unit 31 may gradually darken the brightness of the light emitted by the light source unit 22 over time. Similarly, the control unit 31 may fade in the brightness of the light source unit 22 when transitioning from the extinguishing period to the light emitting period. That is, the control unit 31 may gradually brighten the brightness of the light emitted by the light source unit 22 over time.

[Effects, etc.]
As described above, the lighting system 10 is used for breeding spawning chickens. Spawning chickens are an example of diurnal poultry. The lighting system 10 is a light source unit 22 that irradiates the breeding region 70 of the spawning chicken with light having an emission peak wavelength of 600 nm or more and 650 nm or less during the spawning period of the spawning chicken, based on the control of the control unit 31 and the control unit 31. And prepare. In the light emitting period in which the light is applied to the breeding area 70, the ratio of the bottom of the light brightness to the peak of the light brightness is 60% or more, and the average illuminance in the breeding area 70 is. It is 23 lux or less.

Such a lighting system 10 can improve the spawning rate and the spawning day amount. That is, the lighting system 10 can efficiently collect eggs from spawning chickens.

For example, the light is white light having a color temperature of 2400 K or less.

Such a lighting system 10 can improve the spawning rate and the spawning day amount by irradiating with white light. Further, the workability of the worker in the poultry house 60 can be improved as compared with the case where the breeding area 70 is irradiated with red light.

For example, the light is red light.

Such a lighting system 10 can improve the spawning rate and the spawning day amount by irradiation with red light.

For example, the control unit 31 periodically repeats the light emission period and the extinguishing period for turning off the light source unit 22 during the spawning period.

In such a lighting system 10, if the repeating cycle of the light emitting period and the extinguishing period is set to a predetermined period of less than 24 hours, the laying hen can be made to think that the predetermined period is one day. As a result, one egg can be obtained in a predetermined period of less than 24 hours, so that the total amount of eggs obtained during the spawning season can be increased.

For example, the repeating cycle of the light emitting period and the extinguishing period is less than 24 hours.

Such a lighting system 10 can make a spawning chicken illusion that a predetermined period of less than 24 hours is one day. As a result, one egg can be obtained in a predetermined period of less than 24 hours, so that the total amount of eggs obtained during the spawning season can be increased.

For example, the repetition cycle is 23 hours or more and less than 24 hours.

Such a lighting system 10 can suppress the load on the spawning chicken and suppress the decrease in the total amount of eggs obtained in the spawning season due to the load.

For example, the spawning season is the period after the 150th day after birth of the spawning chicken.

Such a lighting system 10 can improve the spawning rate and the spawning day amount in the period after the 150th day after the birth of the spawning chicken.

Further, the present invention may be realized as a method for breeding diurnal poultry (specifically, spawning chickens). In such a breeding method, light having an emission peak wavelength of 600 nm or more and 650 nm or less is irradiated to the breeding region 70 of the spawning chicken during the spawning period of the spawning chicken, and the light is irradiated to the breeding region 70 during the light emitting period. The ratio of the bottom of the brightness of the light to the peak of the brightness of the light is 60% or more, and the average illuminance in the breeding area 70 is 23 lux or less. Spawning chickens are an example of diurnal poultry.

Such a method of raising diurnal poultry can improve the spawning rate and the spawning daily amount. That is, such a diurnal poultry breeding method can efficiently collect eggs from spawning chickens.

(Other embodiments)
Although the lighting system according to the embodiment and the method for breeding diurnal poultry have been described above, the present invention is not limited to the above embodiment.

For example, the configuration of the light source unit described in the above embodiment is an example. As the light source unit, a fluorescent tube, a metal halide lamp, a sodium lamp, a halogen lamp, a xenon lamp, a neon tube or the like may be used. Further, an inorganic electroluminescence, an organic electroluminescence, chemiluminescence (chemiluminescence), a semiconductor laser, or the like may be used for the light source unit.

Further, the light source unit may emit light having an emission peak wavelength of 600 nm or more and 650 nm or less by a spectroscopic filter or the like. For example, the light source unit may emit light having an emission peak wavelength of 600 nm or more and 650 nm or less due to the structure in which the incandescent light bulb is covered with a red film. The specific configuration of the light source unit is not particularly limited as long as it can emit light having an emission peak wavelength of 600 nm or more and 650 nm or less.

Further, the lighting system according to the above embodiment may be used for breeding diurnal poultry other than chickens such as quail, ducks, ostriches, and pigeons.

In addition, a comprehensive or specific embodiment of the present invention may be realized by a recording medium such as a system, a method, an integrated circuit, a computer program or a computer-readable CD-ROM, and the system, a method, an integrated circuit, a computer. It may be realized by any combination of a program and a recording medium. For example, the present invention may be realized as a control method for a lighting device, may be realized as a program for causing a computer to execute a control method for a lighting device, or may be realized as a control device according to the above embodiment. May be done.

Further, in the above embodiment, all or a part of the components such as the control unit may be configured by dedicated hardware or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

Further, the distribution of the components to the device in the above embodiment is an example. For example, the lighting device and the control device may be realized as one device. Further, the lighting device may have a part of the function of the control device. Further, the storage unit included in the control unit may be realized as a storage device provided outside the lighting system.

In addition, it is realized by a form obtained by applying various modifications to each embodiment that a person skilled in the art can think of, or by arbitrarily combining the components and functions in each embodiment within the range not deviating from the gist of the present invention. Also included in the present invention.

10 Lighting system 22 Light source unit 31 Control unit 70 Breeding area

Claims (9)

A lighting system used for the breeding of diurnal poultry.
Control unit and
Based on the control of the control unit, a light source unit that irradiates the breeding region of the diurnal poultry with light having an emission peak wavelength of 600 nm or more and 650 nm or less during the spawning season of the diurnal poultry is provided.
In the light emitting period in which the light is applied to the breeding area, the ratio of the bottom of the brightness of the light to the peak of the brightness of the light is 60% or more, and the average illuminance in the breeding area is 1. 23 lux or less ,
The light is white light having a color temperature of 2400 K or less.
Lighting system. The lighting system according to claim 1 , wherein the control unit periodically repeats the light emission period and the extinguishing period for turning off the light source unit during the spawning period. The lighting system according to claim 2 , wherein the repeating cycle of the light emitting period and the extinguishing period is less than 24 hours. The lighting system according to claim 3 , wherein the repetition cycle is 23 hours or more and less than 24 hours. A lighting system used for the breeding of diurnal poultry.
Control unit and
Based on the control of the control unit, a light source unit that irradiates the breeding region of the diurnal poultry with light having an emission peak wavelength of 600 nm or more and 650 nm or less during the spawning season of the diurnal poultry is provided.
In the light emitting period in which the light is applied to the breeding area, the ratio of the bottom of the brightness of the light to the peak of the brightness of the light is 60% or more, and the average illuminance in the breeding area is 1. 23 lux or less ,
The control unit periodically repeats the light emission period and the extinguishing period for turning off the light source unit during the spawning period.
The repeating cycle of the light emitting period and the extinguishing period is less than 24 hours.
Lighting system. The light is white light having a color temperature of 2400 K or less, or red light.
The lighting system according to claim 5. The lighting system according to any one of claims 1 to 6, wherein the spawning season is a period after the 150th day after birth of the diurnal poultry. During the spawning season of diurnal poultry, the breeding area of the diurnal poultry was irradiated with light having an emission peak wavelength of 600 nm or more and 650 nm or less.
In the light emitting period in which the light is applied to the breeding area, the ratio of the bottom of the brightness of the light to the peak of the brightness of the light is 60% or more, and the average illuminance in the breeding area is 1. 23 lux or less ,
The light is white light having a color temperature of 2400 K or less.
How to raise diurnal poultry. During the spawning season of diurnal poultry, the breeding area of the diurnal poultry was irradiated with light having an emission peak wavelength of 600 nm or more and 650 nm or less.
In the light emitting period in which the light is applied to the breeding area, the ratio of the bottom of the brightness of the light to the peak of the brightness of the light is 60% or more, and the average illuminance in the breeding area is 1. 23 lux or less ,
In the spawning season, the light emitting period and the extinguishing period of extinguishing the light are periodically repeated.
The repeating cycle of the light emitting period and the extinguishing period is less than 24 hours.
How to raise diurnal poultry.

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