In laying hens, feed costs account for more than 70% of the entire feed cost. In order to increase the economic benefits of raising chickens, it is necessary to work hard on the feeds, that is, rational use of materials, to reduce waste, and to remove out-of-breed chickens in a timely manner is an important measure to reduce feed wastage. Here's a simple way to identify low-yielding chickens in chickens. When the egg production rate of the chicken is above 90% (preferably 95%), check the quail eggs and quail eggs for two consecutive evenings--to see if the eggs on the egg tray in front of each cage are consistent with the number of chickens. If it doesn't match up, then write a couple of chalks on the cages that are used to reach the cage. Then lay eggs. This is the first day; on the second day, only the first day is marked with chalk and eggs. If there is a lot of cages, if the number of eggs matches the number of chickens, wipe off the number to indicate that the chickens are all egg-laying; if there is less, mark the minimum number for two days. On the morning of the third morning, before work (when the chicken does not start laying eggs), carry out the cloaca search on the chicken with the marked cage. If the chicken has eggs, if it is, wipe the mark on the trough. This chicken also produces eggs. Marked chickens were left without eggs and they continued to be explored the next day. If there is an egg, wipe off the number of marks, indicating that this hen is also full of eggs. If there is no egg, this chicken is either a discontinued chicken or a chicken, and it needs to be eliminated immediately. In the past few years, the author has used this method to eliminate chickens that eat white chickens. The results are very good and they are very popular among chicken farmers. This method is suitable for both chicken farmers and large chicken farms. The method is characterized by simplicity and ease of use. Every breeder or head of household can master it. The rate of detection is high. Any chicken that has stopped production can be detected and the detection rate can reach 100%. It will be helpful for the next inspection, especially for the late stage of laying eggs, when it is timely to eliminate low-yielding and discontinued chickens. The low-yielding chickens come from two aspects: one is to mix the weak young chicks into the chicks; in the weak chicks there are congenital stunted chicks, chronic disease chicks, and loses productive performance after bred; secondly, during the entire growth and development and egg production process, Individual chickens are stunted, suffering from chronic diseases (common in the reproductive system, especially tubal disease), sequelae of the scrofula, etc., losing egg production performance and causing discontinued production. China Agricultural Network Editor
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