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When the temperature of the environment is adjusted to be too low, the maintenance needs, feed intake, and nutrient conversion efficiency of the layer will change, and the formula should be adjusted accordingly. The suitable temperature of adult laying hens is about 18°C-25°C. For every 1°C lowering of the ambient temperature, the average free feed intake of chickens will increase by 1.5%, and the maintenance requirement will also increase by 1.5%.
Adjustment of protein and other nutrients During the cold season, the intake of laying hens increased, and the intake of protein, calcium, phosphorus, and vitamins increased accordingly. Therefore, from the cost point of view, the protein content can be adjusted from 15.8%-16.3% to 15.4%-15.7%, and other substances such as calcium, phosphorus, vitamins, etc. can be maintained or slightly increased.
Nutritional supply during laying period of laying hens
Laying hens can't be interrupted during laying, mainly energy and protein.