What should we pay attention to in the management experience of open chicken house light?

Make sure that the light intensity of each chicken is higher than before the transfer. If the chicks are kept in a cage, the hens near the fan light already receive higher light intensity than the hens in other areas. Similarly, the hens in the upper cages receive higher light intensity than other laying hens.

So what should we pay attention to in the management experience of open chicken coop light?

1. During the one-day growth period (spring), find out the longest natural sunshine in the 139th growing period from the local meteorological table. 23-24 hours of artificial supplementation is performed at the first 1-3 days of age, and then the duration of the supplemental photography is gradually reduced to the expected length of daylight at the 139th day of age, and increased by half an hour per week from the 140th day of age until 16 hours of illumination per day.

Second, the day length of brooding time increases first and then decreases, and the longest natural sunshine length during the growing period is found from the local meteorological table. The first 1-3 days of age were filled with artificial light for 23-24 hours, and the next 10 days were gradually reduced to the maximum natural sunshine length time. Later, at 139 days of age, the number of hours of natural light tended to decrease, increasing by half an hour per week from 140 days of age until 16 hours of light per day.

3. When the short-term brooding (autumn) day length gradually decreases, the natural day length is shortened from 1 day to 139 days. Artificial light is provided during the brooding period, 23-24 hours at 1-3 days of age, then reduced by 2 hours per week to 10-11 hours before the natural daylight length is used. From the age of 120 days, add half an hour per week and use artificial lighting every day until 16 hours.

Fourth, the day length first decreases and then increases for brooding, find out the natural day length of 139 days from the local meteorological table, the first 1-3 days of light 23-24 hours, the last 10 days of light 18-20 hours, and then use the natural day length until the natural day length of the light time is equal to 139 days. From 120 days, increase by half an hour per week until 16 hours of light per day.

Pay attention to the temperature in the chicken coop, the time of sunlight, the ventilation in the chicken coop, the surrounding environmental hygiene, and the food fed to the chickens.

Be sure to pay attention to the intensity of light, and also pay attention to the time of light, because you need to let the chicken have a rest time, otherwise it will have a certain impact on the chicken's body, and secondly, you also need to pay attention to the effect of light and the use of light.

Pay attention to the cleanliness of the chicken house, the time of light, ventilation, feed the chickens with food and water, and the temperature in the chicken house.

The degree of airtightness of the chicken coop is different, and the light system of the closed chicken coop is different, and the light system of the closed chicken coop is shown in Table 2.

Table 2 Simplicity of light preparation in closed layer houses.

1) Broiler. 23 hours of light, 1 hour of darkness, light intensity to broilers can eat normally as the standard, broiler brooding two weeks before the light 2 3 W2

After Watt 2

2) Laying hens. Light has a very important role in the feeding, drinking, exercise and health of chicks, in order to ensure the growth and development of chicks, reasonable light should start from the hatch of chicks. Newly hatched chicks, weak physical strength, in order to ensure food and water, generally the first week of light 23 24 hours, the second week decreased to 19 hours, the third week to the eighth week reduced to 8 hours, brooding and rearing period of light time, can only be reduced can not be increased, so as not to young hens sexual maturity too early, early egg production, egg weight is small, egg production durability is poor, the annual egg production is low.

The light intensity is 2 per 15 meters in the first week

Hang one 40-watt bulb and replace it with a 25-watt bulb after the second week, with a hanging height of about 2 meters. 18 At 20 weeks of age, extend the light duration, keep the light duration to about 16 hours, and increase the light intensity to 4 5 Wm2

to promote an increase in egg production. In the last month of the flock, the light hours can be extended to about 17 hours in order to fully exploit the laying potential of the individual layers.

Under natural light, the chickens that hatch in the spring gradually shorten the sunshine time and egg production gradually decrease in autumn and winter. In the case of Beijing, where Hand Liang is located at 40 degrees north latitude, the time between sunrise and sunrise is as long as 15 hours a day during the summer solstice, and shortens to only 11 and a half hours a day during the cold dew. Although egg production is so low in autumn and winter, the main reasons are:

With the shortening of the sunshine time in the season, the effect of light on the chicken body decreases, and the secretion of gonadotropins in the anterior pituitary gland of chickens decreases, resulting in a decrease in egg production. This is not due to a drop in temperature, nor is it due to a decrease in the amount of sunlight and therefore a lack of nutrients for the chickens to feed intake. The appropriate lighting system is one of the important technical measures to detect the timely production of chickens and improve the egg production, which must be used properly and strictly implemented.

Laying hens raised in closed chicken houses, rearing period: 1-3 days old 23 hours of light, 4-2 weeks old 16 hours of light Sun Xiao, 3-18 weeks old 9 or 8 hours; The illumination is 20 lux at 1-2 weeks of age and 5-10 lux at 3-13 weeks of age. 10 hours of light per day from 19 weeks of age, then half an hour per week to 16 hours at 31 weeks of age, and then on.

The illuminance is about 20 lux, the light meter, every 3 meters with a 40-60 watt bulb, 2-3 watts can not change the light time at will, the principle of light Bikai wide illumination is that the breeding period can only reduce and can not increase the light time, and the laying period can only gradually increase and not reduce the light time. It is most convenient to manage the lighting time with a time switch. For flocks kept in open coops, follow the local conditions:

Different light methods are adopted for latitude and brooding season, for example, the rearing period in northern China is: (1) 23 hours of light for the first 3 days of brooding, and 16 hours of light for 4 days to 2 weeks of age. (2) Chicks hatched between April 1 and September 15 are recalcitrant from 3 weeks old to 20 weeks old.

3) Chicks hatched between March 16 and March 31 shall be supplemented with light according to the light time of the longest light day of the 3-20 weeks of age during the rearing period from 3 weeks of age to 3 weeks of age, and natural light after the longest light day. Laying period: (1):

If there is less than 12 hours of natural light at 2 weeks of age, the light should be supplemented to 12 hours at 2 weeks of age, and then increased by half an hour per week until 16 hours. (2) If natural light reaches or exceeds 12 hours at 20 weeks of age, add 15 minutes per week until 17 hours. (3) Illumination, set up a 40-watt bulb every 3 meters, and hang it above the passage between the cages.

2-3 watts per square meter. When supplementing the light, the power supply should be stable, the bulb should have a lampshade to gather light, and all parts of the house should be evenly irradiated by the light when leveling, and the trough and drinker should be placed under the bulb. When turning off the lights at night every day, you should leave a small bulb unturned off, or use a voltage regulating transformer to reduce the voltage to dim the light, and then turn off all the lights on time after the chickens are perched.