1. Calcium and Calcium Source: The choice of calcium source feed has the best effect with seafood shell powder. Crude shell powder is made by crushing large shells, does not contain fine sand, calcium content is generally 35% ~ 37%, is a high-quality calcium source feed for laying hens.
2. Calcium-supplying time: Continuous laying hens lay their eggs in the morning and half an hour after laying, the next yolk is discharged from the ovary into the fallopian tubes. Therefore, continuous egg-laying hens do not need calcium supplementation in the morning, and after 2 pm, as the egg shell deposition rate increases, the calcium requirement for chickens also increases. Therefore, in order to make laying hens produce more eggs and produce good eggs, it is best to Supplement calcium feeds to layer hens every day from 2 pm to 6 pm.
3. Calcium supplementation: Calcium production is required for layer production, but it is not always better. For a layer of eggs, 4.4 grams of calcium is required for each egg. The amount of calcium in the diet is 3% to 3.5% to meet the production needs of the layer. If the calcium content in the diet exceeds 4%, adverse symptoms will occur: on the one hand, the palatability of the feed will be deteriorated and the feed intake of the chicken will be reduced; on the other hand, it will cause the accumulation of urate in the hens, resulting in Indigestion causes diarrhea, and severe symptoms can cause gout.
4. Calcium supplementation method: Calcium source feeds can be placed on their own, any chickens can eat freely, and they can also be mixed in feeds.
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