Production practice shows that the lighting management of chickens is inseparable from the improvement of production performance and production efficiency. Good scientific lighting management can prolong the peak period of chicken production, improve production performance, and increase the economy of farmers. Benefits, on the contrary, if the light is not scientific, not only shorten the flocking cycle of the flock, but also cause unnecessary fatalities in the flock and affect the breeding efficiency.
First, brooding light
When the flock enters the house and enters the brooding stage, under normal circumstances, the flock will be given a strong light for 24 hours. This is mainly because the flock has just hatched and the vision does not reach the normal visual ability, so as not to affect the normal feeding and drinking of the flock. As well as necessary activities, it takes a long period of strong light. As the age of the flock increases, the functions of various organs of the body gradually develop and become healthy, and their vision reaches a normal level. This requires gradually reducing the intensity of light and shortening the time for light. This is the 24-hour light that is given 1 to 3 days before the brooding period that is required for daily management. After 4 days, the light is gradually reduced. After 40 days, the light is maintained for 8 to 10 hours.
If during the brooding period, the scientific light system is violated, the brooding period is weak or the light is given for a short period of time, the chicken group will not affect the normal development of the flock because of insufficient access to food and drinking water, resulting in more weak chicks and further infection. Increase the risk of disease, increase the mortality rate and increase the cost of breeding. However, the chickens with weaker constitution will also delay the production due to slow growth and affect the future production performance. Later in the brooding period, because of the long illumination time and short dark time, the feed intake of the chickens increases, the weight gains too fast, the oil deposits increase, and fatty liver symptoms appear.
Second, post-production lighting
After the chickens were put into production, some of the farms were not scientifically lightened, mainly because the light was added too early or too fast, or the light was weaker. If the addition of light is too early and premature, the weight of the chicken population has not yet reached the standard, which means that the skeleton of the chicken has not grown and the body does not accumulate enough nutrients. This will cause the reproductive system to develop in advance, and the chickens will lay eggs in advance, but will As the chicken skeleton is not grown and the production of eggs is not reduced, there will be no sufficient accumulation of calcium in the body to cause laying hens fatigue. This will also result in a short duration of egg production or no peak period of egg production. Overall production performance. If the time for adding light is given to the weak light, that is, the light intensity is generally insufficient, it will not be able to stimulate the normal development of the reproductive system and delay the production of eggs. The best solution to this type of problem is to strictly implement light addition procedures and systems. After production, the egg production rate should be used as the basis for adjusting lighting. After the continuous light addition begins, the light is applied for 15 to 30 minutes per week depending on the breed of the flock, until the egg production peak maintains 16 hours of light. For nighttime lighting patterns, we must give it scientifically, especially in the summer, and we must also pay attention to the light at night, so that the chickens have time for drinking activities to prevent chickens from suffering heatstroke.
Third, the light intensity control during the laying period
Due to the fear of licking and feathering after the chickens lay the eggs, the farmer reduced the light intensity of the chicken house to a certain extent, which affected the performance of laying eggs to a certain extent, and increased the mortality rate of the chickens. It is reasonable that the light intensity of the chicken house should be based on the light intensity of the head position of the chicken in the lowermost cage. The average light intensity between the light sources under the multi-point light source should not be lower than the brightness of 10.76 lux. In actual production, the distance from the light source to the ground must be determined according to the height of the feeder, and then the distance from the light bulb to the bottom chicken head should be measured. Finally, based on the actual measured distance and the type of light source, the required light source tile is calculated. Number size. After the lamp is installed, it is necessary to use a photometer to measure the actual light intensity, and then make fine adjustments according to the actual light intensity.
The actual production of farms should also be adjusted according to the specific conditions of the house, such as the use of an H-shaped cage and trapezoidal cage in the light of the specific operation is slightly different. There is also a difference between closed chicken houses and semi-open chicken houses. If the layout of the light source is unreasonable, it will result in some cages with strong light intensity and some cages with weak light intensity. High light intensity can cause chicken flea to occur. Low light intensity can affect the flock intake, delay weight gain, and play a role in production performance, especially in fully enclosed chicken coops. It should be noted that the principle of lighting in open chicken houses is the method of supplementing with natural light and artificial lighting, and it is usually done in the morning and at night. At the time of production, it is also necessary to gradually increase the light fill method. The ideal fill light method is to supplement the light in the morning, which is more in line with the physiological characteristics of the chicken, but also can stimulate the chickens to advance the daily egg production time. Regardless of the lighting system adopted, it should be strictly implemented once it is established, otherwise it will affect the chicken production rate.
Fourth, late light production management
When the flock arrives at the late stage of laying, many farmers will increase the light time and light intensity to stimulate the flock to prolong the laying cycle of the flock, and reduce the rate of decline in the egg production rate. Since 16 hours of light has been used since the flock was opened, the duration of this light can be constant up to 60 weeks. After 60 weeks of age, the increase in lighting can only increase to 17 hours until it is eliminated. Light during this time if there is more than 17 hours on the production of eggs have a certain inhibitory effect.
Disclaimer: Some of the articles in this website are transferred to the Internet. If you are involved in third-party legal rights, please inform this website. phone
Acne Patch5
The main material of acne pimpel patch is hydrocolloid, which is composed of hydroxymethyl cellulose, medical hot melt adhesive. Acne patch box is used to apply to the surface of acne, absorbing tissue secretions in a physical way and creating a moisture-balanced environment around the acne. Acne patch kingson has a flat back and neat edges, with no defects of decoupling. Cute acne patches can absorb more than twice of its own tissue fluid. Private label acne patch is disposable. Keep skin clean before product use, do not apply any products, do not use with ointment. Hydrocolloid acne pimple patch for zits is most effectively absorbed when the acne appears pus-filled. To use rael acne pimple healing patch, remove the sticker, peel off the backing paper, apply it to the wound and gently press around it to fix it. Acne patches korean is most effectively absorbed when the acne appears pus-filled. To use acne healing patches, remove the sticker, peel off the backing paper, apply it to the wound and gently press around it to fix it. After the color of the acne patch organic changes from clear to white, replace the sticker. Cosrx acne pimple patch has good water resistance and can be used during makeup or bathing.
Hydrocolloid application,acne pimple patch,lz pimple acne patch,acne patch salicylic
Henan Maidingkang Medical Technology Co.,Ltd , https://www.mdkmedical.com