1. Increasing by age: 1 to 6 weeks old chicks, 20 to 100 milliliters per chicken per day; 100 to 200 milliliters for young chicks aged 7 to 12 weeks; 200 to 230 milliliters for non-lacking hens; laying hens 230-300 ml.
2. Determined by the ratio of feed intake: Under normal temperature (around 20°C), drinking water is twice the intake; in high temperature (above 33°C) environment, drinking water is 5 times of feed intake.
3. Determine the egg production rate: When the egg production rate is 50%, the water requirement for each layer will be 170 ml/day for each chicken; if the egg production rate increases by 10%, the drinking water volume will increase by 12 ml. The benefits of this are: to prevent the birds from greedy drinking and causing water diarrhoea; just supplying the chickens with drinking water not only guarantees the physiological demand for the water and the production performance of the chickens, but also does not waste water; it reduces the cost of raising chickens.
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