In the hot summer, the majority of laying hen farmers are affected by many factors such as feeding technology, high temperature and humidity, ventilation facilities, and environmental conditions. As a result, the laying hens showed different degrees of egg production declines. At the peak of the laying season, the feces and feed intake were good, and the egg production rate still dropped by 5%-10%. Therefore, according to the environmental conditions and the specific conditions of the flock, it is very important to timely adjust the feed formulation. One can ensure the safety of laying hens; the other is to reduce the cost of raising and increase the economic benefits.
Appropriately increase feed nutrient concentration. In summer, when the ambient temperature exceeds 25°C, the feed intake of chickens will be reduced accordingly, and the intake of nutrients will be reduced accordingly. This will result in decreased egg production performance and poor egg quality. This requires the use of Diets with higher nutrient concentrations are compensated. During the hot season, the energy of laying hens needs to be reduced compared to the usual feeding standards. As a result, some experts believe that the energy concentration of feed should be appropriately reduced in summer; however, after laying hens, energy is the key to determining the egg production rate. High temperatures often result in insufficient energy intake due to reduced feed intake and affect egg production rates. Tests have shown that after adding 1.5% cooked soybean oil to feed during summer high temperatures, the egg production rate can be significantly increased. To this end, it is necessary to appropriately reduce the amount of cereal feeds such as corn, so that they generally do not exceed 50% to 55%, while appropriately increasing the nutrient concentration of feed to ensure the normal performance of its production performance.
Increase protein feed supply, as appropriate. During the hot summer days, the feed intake of chickens is reduced. Only by increasing the protein levels in the diet as appropriate, and ensuring the balance of amino acids, it is possible to meet the protein requirements of the laying hens. Otherwise, the egg production will be affected due to insufficient protein. In the hot season, the protein content of laying hens should be increased by 1-2% compared with other seasons, reaching more than 18%. Therefore, it is necessary to increase the amount of feeds for cakes, such as soybean meal and cotton cakes in compound feeds, in amounts of not less than 20% to 25%. The amount of animal protein feed such as fishmeal should be appropriately reduced to increase palatability and increase feed intake.
Use feed additives carefully. In order to avoid the stress reaction and laying performance of laying hens caused by high temperature and other factors, it is necessary to add some anti-stress additives in feed or drinking water. For example, adding 0.1% to 0.4% of vitamin C and 0.2% to 0.3% of ammonium chloride in drinking water can significantly relieve heat stress. According to data reports, the addition of 0.04% Bacillus Peptide in the diet can maintain the balance of intestinal flora, promote nutrient absorption, increase feed conversion, and also have anti-stress effects. Adding 0.1% fumaric acid to feed or drinking water can effectively relieve heat stress, increase chicken feed intake and increase egg production. Under stress conditions such as high temperature and high humidity, add 0.3% sodium bicarbonate to the feed (the method is to dissolve in water first and then mix, feed 10-15 minutes later) to improve the heat resistance of the layer and The egg production rate has a significant effect, but at the same time can greatly reduce the egg breakage rate. But be sure to pay attention to the amount of additives to prevent them from being counterproductive.
Use mineral feed rationally. During the hot season, the content of phosphorus in the diet should be appropriately increased (phosphorus can relieve heat stress). At the same time, the calcium content in layer diets can be increased to 3.8% to 4%. The ratio of calcium to phosphorus is 4:1. However, too much calcium in compound feeds will affect the palatability. In order to increase the intake of calcium without affecting the palatability of the layer feed, in addition to increasing the amount of calcium in the feed, they can be supplemented separately and allow the chicken to feed freely. Meet their physiological needs.
Pay attention to add flavored feed. In summer, the temperature is high and the feed intake of chickens is reduced. Adding certain seasoning feeds to the feed will greatly help increase feed intake. Therefore, in order to improve the palatability of feed and increase appetite, it is necessary to use a safe and effective flavoring agent such as Fen-flavor, para-aminobenzoic acid, and sodium glutamate to increase feed intake on the premise of guaranteeing feed quality.
Adjust the time to feed the feed. During the production, the number of feedings can be appropriately increased. In the summer and early evening, the temperature is relatively low. At this time, the feed intake of the layer is relatively large. The feeding time can be adjusted, and the feeding time can be adjusted before the light is turned off in the morning and evening to ensure that the chickens are harvested. Eat enough feed.
In addition, some Chinese herbs can also be used to relieve or treat heat stress, such as Xiaoshusan, which is mixed with millet, honeysuckle, isatis root, herb, gentian, etc., and added to the feed at a proportion of 1%. The effects of heat-clearing and heat-clearing and detoxification and detoxification have no side effects.
The Network Video Recorder 4K, also called the NVR 4K/ 4K HD NVR/ 4K NVR Kit/ NVR 4K CCTV/ NVR 4K System, means that this DVR has the resolution of 4K, 4096x2160, about 8.8 million pixels, which can achieve the movie level image quality, which is equal to more than four times the current top level 1080p resolution. As for 4K, the data volume of each frame has reached 50MB, so both the decoding playback and the editing require the top level configuration machines which also means the ultra-high-definition resolution and the high price.
So what is the Frame?
The Frame is the smallest unit of the single image in video/animation, which is equivalent to every frame of lens of a film. A frame is a still picture, and successive frames form an animation, such as a TV animation. We usually call the Frame the number of frames that pictures transmitted in 1 second. We can also be regard the Frame as that how many times the graphics processor can refresh per second, which is usually expressed by fps (Frames Per Second), and it can be called the Frame Rate. Each frame is a still image, and the displaying frames in the rapid succession creates an illusion of motion. The high frame rate can achieve smoother and more realistic animation. The more frames per second (fps) there are, the smoother the displayed motion will be.
So what is the Frame Rate?
The Frame Rate, also be called the frame frequency, is expressed in Hertz (Hz) and it is the frequency (rate) of the bitmap images(whose unit is frame) that continuously appear on the display. This term also applies to the films, the video cameras, and the computer graphics and motion capture systems.
What about the relationship between the Frame Rate and the Human Vision?
The time sensitivity and resolution of human vision vary, according to the types and characteristics of visual stimuli, and differ between individuals. The human vision system can process 10 to 12 images per second and perceive them individually, and the higher Frame Rates are considered the motions.
Generally speaking, when the Frame Rate is higher than 50 Hz to 90 Hz, most research participants believe that the modulated light (such as a computer monitor) is stable, and the sense of stability of this modulated light is called the flicker fusion threshold( when the modulated light is non-uniform and contains an image, the flicker fusion threshold can be much higher, perhaps hundreds of hertz). As for the image recognition, it has been found that if people need to recognize the specific images in an uninterrupted series of different images, each image should last 13 milliseconds at least. And the persistence of the human vision sometimes may cause a very short single millisecond visual stimulus, and the duration will be from 100 milliseconds to 400 milliseconds. Very short multiple stimuli are sometimes considered as a single stimulus. For example, a 10-millisecond green flash first, then a 10-millisecond red flash followed, under this condition, the they would be perceived as a single yellow flash.
Well, I hope that my introduction about the Network Video Recorder 4K and the Frame Fate could help you know more about this video monitoring field.
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