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Anonymous users2024-02-16When the feed calcium content is insufficient and can not be free to feed to the sand grains, it will cause calcium deficiency, vitamin D can promote calcium absorption, in the final analysis, it is to make the egg quality better, you can consider using the premix of Liyang Zhengchang feed technology.
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Anonymous users2024-02-15The need for calcium in laying hens during the laying period is very high, and the quality of the chicken's bones and eggshells depends on the amount of calcium absorbed.
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Anonymous users2024-02-14The texture of a chicken's bones and eggshells depends on the amount of calcium absorbed. In order to make the hens produce high yields and reduce the breakage rate of eggshells
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Anonymous users2024-02-13Although free-range chickens can eat freely, calcium still needs to be supplied in sufficient quantities from the diet, otherwise the chickens will have osteoporosis, abnormal posture, and produce soft-shelled eggs, thin-shelled eggs or shellless eggs, so that the breakage rate of eggs will increase, and the egg production will also decrease.
Native chickens should not be fed a high-calcium diet during the rearing stage, and the calcium content in the diet should be controlled between. As long as the development is normal, most free-range chickens begin to lay eggs at the age of 145 to 155 days, so a large amount of calcium supplementation should be given to the chickens from this period. The utilization rate of calcium in chickens is about 55%, and it takes grams of calcium to lay an egg, so chickens need to eat about 4 grams of calcium for each egg they lay.
Depending on this requirement, the calcium in the diet can be increased to 2 per cent from the beginning of production to the 5 per cent laying rate, and then gradually increased to the optimal level. If the ambient temperature is high, the feed intake of the chickens is reduced, and the calcium supplement can be appropriately increased.
When supplementing calcium, bone meal, shell powder and stone powder can be used as the main calcium powder**. When purchasing, it should be noted that the particles in these raw materials should be larger, and the less powder, the better. Because granular calcium stays in the digestive tract for a long time, calcium is supplied evenly during the eggshell formation phase.
In addition, granular calcium can play a grinding role in the stomach and improve the digestibility of feed.
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Anonymous users2024-02-12The use of golden eggs for laying hens is an important measure to improve the amount and quality of egg production of laying hens.
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Anonymous users2024-02-11To make the hen high.
to lay and reduce the breakage rate of eggs.
source, during the hen laying eggs, the calcium should be checked frequently, and calcium should be supplemented. Generally, from the age of 4 months or when the hen flock reaches 50% egg production rate, the hens should be fed compound feed containing calcium and phosphorus. In the case of high temperatures or high egg production rates (75% to 80%), the calcium content can be increased to; When the egg laying rate decreases, the calcium content should be appropriately reduced.
Shell powder, stone powder and high-temperature sterilized, skimmed eggshell powder are usually used as calcium sources, and it is generally advisable to feed the hens at 12 00 20 00 per day, so that the hens can eat freely.
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Anonymous users2024-02-10Calcium is an important mineral element to ensure high and stable production of laying hens. Laying hens need a lot of calcium during the laying period, of which about 90% is used for bones and eggshells. Eggshell is mainly composed of inorganic and organic matter, the inorganic matter is mainly calcium carbonate (about 95%), the quality of eggshell largely depends on the calcium in the diet and the absorption and utilization of calcium by laying hens.
Adult hens need to take in calcium every day, and calcium is needed to lay an egg, and the absorption rate of calcium in the first half of egg laying is 55%-60%, and it is reduced to 40% in the later stage of egg production, so calcium needs to be eaten per 1 egg, but the calcium in the chicken body is only limited to about 15g, according to the needs of egg production, the hen body (including bone calcium) is only enough to lay 3-4 eggs, so a large amount of calcium is needed. If the egg-laying period of laying hens calcium intake is insufficient, the flock is susceptible to hypochondrosis, eggshell quality and egg production rate will decline, and a certain number of soft-shell eggs and thin-shell eggs, especially in the peak period of egg production, the reason is that the quality of eggshells depends to a large extent on the bone condition of chickens, laying hens due to the formation of eggshells and dynamic calcium metabolism. Hens with high egg laying rate, if the calcium is not enough, there will be thin eggshells after 4 days, and then the ribs may collapse, resulting in osteoporosis in caged laying hens.
An increase in the calcium content of the diet does not further increase egg production, but it can improve eggshell weight and eggshell thickness. However, when the calcium content in the diet exceeds 4%, it seriously affects the production performance of chickens, on the one hand, it will cause urate accumulation in the body, causing dyspepsia and diarrhea, and even gout symptoms; On the other hand, it will make the palatability of the feed worse, and the feed intake and egg production of the flock will be reduced.
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Anonymous users2024-02-09Calcium supplementation method: laying hens should increase from about 18 weeks of age, shell powder to 2%; After 20 weeks of age, it enters the egg laying period, and the content of bone meal in the feed should reach and the shell powder should reach; After 38 weeks of age, the content of shell powder can be increased to the calcium content in the diet when the egg production rate of laying hens raised off the ground reaches 80%; When the laying rate is less than 80% or greater than 65%, the calcium content is; When the egg laying rate is less than 65%, the calcium content is:
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