Water is very important for maintaining the normal life and production of pigs. Insufficient water supply will affect the normal physiological function of pigs, even cause diseases, affecting growth and development. Under house-feeding conditions, a single sow will need to supply 75-100 litres of water per day, 30 litres for pregnant sows, boars and bred pigs, and 15-20 liters for young pigs and fat pigs.
The traditional method of water supply is to pour water into a drinking trough immediately after feeding every morning, afternoon and evening. The biggest disadvantage of this way of water supply is that, because the residual water left over must be removed each time water is added, first, water is wasted, and the second is to increase the humidity of the pig house and endanger the health of the pig.
The use of automatic drinking fountains (especially the large number of pigs), one is to save labor; Second, pigs can often drink clean water; Third, save a lot of water.
Duckbill drinking fountains can supply 10 to 15 pigs each and are generally installed on tap water pipes in drinking areas. Its simple structure consists of duckbill body, stem, valve and fixed spring. When the pigs drink water, the duckbill body is placed in the mouth and the valve stem is squeezed to overcome the spring pressure, so that the valve stem rubber valve deviates from the center of the water pipe, so that water flows from the drinking water pipe body into the pig's mouth. When the pig's mouth leaves the stem, the stem is automatically returned by the spring and the waterer stops supplying water. The commonly used duck-billed drinking fountain outlet diameter is generally 2.5 mm and 3.5 mm, and its flow rate is 2000-3000 ml and 3000-4000 ml per minute. When using the automatic drinker, it should always check whether there is water leakage or damage, so that it can be repaired in time.
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