Black phoenix chicken, also known as black feather chicken, is a unique and rare source in China. Breeding management Chinese black phoenix chickens were bred from the brooding to the rearing stage of chicks (7-25 weeks old). This period should reduce the energy and protein levels in the diet, increase the amount of bran and green feed, and reduce the amount of concentrate. The number of feeding troughs is required to ensure that each chicken eats well and is weighed regularly. Commercial chickens can be listed on the 100th day of age. Reserve chickens from 100 to 180 days old are reserved for breeding chickens. Select chickens to work in groups, grouping them according to their size, strength, and male and female. Each group is suitable for 250~300. (1) De-warm: Black chicken is about 6 weeks old. All the hairs are replaced with silk hairs. The silk wool insulation performance is poor. Generally about 9 weeks old, the black chicken's thermoregulation capacity is improved. At this time, the de-warming takes place gradually and begins at daytime. Warming up, still need to warm up in the evening. (2) Preparing for entering a breeding home: Before the person is educated, he should disinfect the breeding house, feeding trough, and drinking fountain, prepare feed, litter, and medicine, and organize the manpower to do a good job of selecting chickens. (3) Exercise and Density: The growth period is an important period for long bones and muscles. Therefore, sufficient activity space should be provided to strengthen the movement of the chicken and obtain a strong constitution. Under flat-knit conditions, the rearing densities of 9-13, 14-17, 18-25 weeks/m2 were 15, 10, and 7, respectively. (4) Strict control of light: The light duration in the rearing period is usually 8 to 10 hours. (5) Limiting rearing and regular weighing: The weight of black phoenix chicken has a direct impact on the future egg production. In this period, the energy and protein levels in the diet should be reduced, and the amount of bran and green feed should be properly increased to reduce the amount of concentrate. . In the feeding restriction process, the number of feed troughs is required to be sufficient, and the speed of the sprinkling is fast to ensure that each chicken eats well. At the same time, weighing is performed regularly to require 750 g at 90 days, 900 g at 120 days, and 1100 at 150 days. Grams, 1,180 grams per day, 180 days, 10% every 2 weeks, if the average weight is lower than the standard value, you should increase the amount of feeding or feeding, and vice versa, reduce the number of feeding. Feeding management of adult chicken (1)Environmental hygiene: Before the production of black phoenix chickens, the broiler houses should be thoroughly cleaned and disinfected. (2) Transfer to group: The transit time is generally 22 to 24 weeks old, and the vaccination is completed once before the group is transferred. When selecting a group, select only suitable weight and healthy chickens, and gently handle them to avoid mechanical injuries and unnecessary deaths. Increase the proportion of vitamins in the diet and add a certain amount of antibiotics to the group. To improve anti-stress ability.
We may have heard of the Zoom Bullet Camera, so what is the Zoom Bullet Camera/ Bullet Zoom Security Cameras/ Bullet Zoom Digital Cameras/ Smart Zoom Bullet Camera/ Zoom Lens Bullet Cameras/ Zoom Bullet Camera HD? We know that the Bullet refers to the camera shape, so what about the Zoom? Actually, the Zoom refers to a type of the camera lens. Today let me introduce the camera lens for you.
Zoom Bullet Camera, Bullet Zoom Security Cameras, Bullet Zoom Digital Cameras, Smart Zoom Bullet Camera, Zoom Lens Bullet Cameras, Zoom Bullet Camera HD​ SHENZHEN SANAN TECHNOLOGY CO.,LTD , https://www.sanan-cctv.com
I have introduced the camera lens and 2 classifications for you before. Today please let me introduce another parameter of the camera lens for you---the Wide Dynamic.
So what is the Wide Dynamic?
The Wide Dynamic actually refers to the brightness ratio of the brightest and darkest parts of the image that the user can see at the same time via the camera. The Dynamic Range broadly refers to the changing span of a changing thing, that is, the range from the lowest point and the highest point of its changing value, which is usually described as the difference between the highest point and the lowest point. Well, the Ddynamic Range of a camera refers to the ability of the camera to adapt to the light reflection of the scene in the shooting scene, specifically the range of brightness (contrast) and color temperature (contrast); which means the camera's adjustment range of the "darkest" and "brightest" of the image, or the ratio of the lightest tone to the darkest tone in a still image/video frame. And the hue can show the precise details in the image or frame. As the ratio of the two tones, the unit of the dynamic range can be decibels, bits, files, or simply expressed as a ratio or multiple.
The Wide Dynamic Camera Technology is a technique by which the user can see the characteristics of the image under very strong contrast via the camera. In some occasions where the contrast between light and dark is too large, due to the limitation of the CCD's photosensitive characteristics, the background of the captured images will be easily too bright/the foreground of the captured images will be easily too dark. Later, Because of the wide dynamic technology emerged, and this problem has been solved.
So how about the applications of the Wide Dynamic Camera?
The Wide Dynamic camera is usually applied when the light environment is still ideal but the details of the target object cannot be obtained. That is to say, the wide dynamic technology is mostly used in places where light and dark alternate. When the surveillance camera cannot achieve low-illuminance monitoring, the wide dynamic technology needs to be used to "fill the light". In terms of the surveillance camera applications, the ordinary surveillance camera captures the images with the clear background but the dark foreground, while the wide dynamic camera can capture the images with both the clear foreground and background.
The Wide Dynamic Camera is usually applied to the Highway toll system, the Electronic police system, the City Commercial Street and so on; which is very useful and has brought much convenice to our life.
In a word, I hope that the introducton of the Wide Dynamic can make all of us know more about the Zoom Bullet Camera and the whole video monitoring field.
Black phoenix feeding points