In the feeding process of caged hens, a certain number of soft-shelled eggs and shell-shelled eggs often appear before the peak of egg production, which reduces the production efficiency. The main reason is that the calcium intake of chickens does not meet the normal needs of the laying period. Practice has proved that the implementation of a separate calcium supplement for caged chickens is both simple and effective, and it can also receive significant effects in preventing soft shells and thin shelled eggs. Specific methods are as follows: 1, calcium material selection. The best eggshell powder, shell powder, bone meal followed. Because the size of eggshell powder particles is even and suitable, it accords with the feeding habit of chickens; the size of shell powder, bone meal, etc. are different, which affects the foraging effect. Other fine powdery calcium feeds are not suitable for feeding. 2, feeding time. It is possible to turn off the lights from the afternoon to the evening, but it is best to use 2-4 hours. It has been determined that most of the calcium absorbed by chickens in the morning is stored in bones, and the calcium absorbed in the afternoon or evening is used directly for the formation of eggshells on that day, and the 2-4 o'clock is the peak of feed intake for chickens in one day, and the appetite is highest. Wang, eat the fastest. 3, feeding amount. The amount of supplemental calcium should be based on the ratio of soft shells and thin shelled eggs under the chicken. Soft shells and shell eggs generally disappear, and chickens do not want to eat calcium. If the eggshell is not smooth and there is a raised calcium spot, then the calcium supplement is too much. It is usually appropriate to add 0.5 kg per 100 chickens. 4, feeding method. If it is free to eat, after 2 pm, let the chicken eat the feed in the tank first, half an hour when the chicken has a certain appetite, the calcium material to be filled evenly in the tank; if it is time feeding Feeding can be done before feeding in the afternoon, using calcium supplements before feeding full supplements. Regardless of the method used, it must be ensured that all chickens can eat calcium at the same time, so as to achieve the purpose of total feeding.
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