1, reduce environmental impact
In spring, temperatures gradually rise. The feed intake of the chicken is reduced, and the absorption rate of calcium in the intestine is reduced. The increase in temperature causes the chicken to breathe faster, and the carbon dioxide emitted increases, so that the concentration of carbonic acid in the blood drops, and the eggshell thins. Therefore, when the temperature rises, attention should be paid to cooling, and the amount of calcium in the feed should be appropriately increased.
2, mineral elements should be appropriate
The absorption of calcium and phosphorus in the body is always synergistic, and the appropriate amount of phosphorus can promote the absorption of calcium. In the brooding and breeding period, when the ratio of calcium to phosphorus is 1.5-2:1, the absorption and utilization of calcium and phosphorus are the highest. Therefore, inorganic phosphate or animal phosphate must be added to ensure the supply of phosphorus. In addition to phosphorus, the content of iron, magnesium, zinc, manganese, etc. in the feed will affect the absorption of calcium and phosphorus, and thus affect the quality of the eggshell. When these mineral elements are relatively high in the body, they will form insoluble phosphates with phosphate ions and affect the absorption of calcium. Therefore, in the supplement of trace elements, the amount can not be too large, while paying attention to drinking water hardness can not be too high, calcium supplement feed can not contain more other mineral elements.
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