First, the calcium time: In order to make egg-laying eggs, produce good eggs, at 12-18 hours a day, to the layer of chicken calcium feed best effect.
Second, the calcium method: calcium source feed can be placed alone, any chicken free to eat, can also be fed mixed feed.
Third, the amount of calcium: production of laying hens need calcium, but it is not as good as possible. For a layer of eggs, 4.4 grams of calcium is required for each egg. The amount of calcium in the diet is 3.0%-3.5% to meet the production needs of the layer. If the calcium content in the diet exceeds 4.0%, adverse symptoms will occur.
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