Always check the water flow rate at the beginning, middle, and end of the water supply system. Water flow rate: the feed water flow rate of pigs of 6-10 kg body weight is 0.5 L/min; the water supply flow rate of pigs of 25-50 kg body weight is 0.7 L/min; the water supply flow rate of 50-90 kg body weight and pregnant pigs is 1.0 L/min; The water supply flow rate of lactating sows is preferably 1.5 l/min.
The temperature of the drinking water and foodstuffs of pigs in pig drinking fountains is closely related to the growth and health of pigs. Pigs are suitable for drinking cold water in the summer, and drinking warm water in the cold season is better, which can promote the feed intake of pigs, significantly increase the daily weight gain of pigs and reduce the rate of diarrhea. Especially for piglets, when the drinking water temperature is lower than the body temperature, not only the pigs need to use extra energy to increase the temperature of the water intake, but cold stress can also cause stomach ulcers and indigestion in pigs. According to the test of Guangxi University, the suckling pigs drink the warm water of 37 °C supplied by the multi-function constant temperature drinker, which is 39.4 g more than the daily weight of piglets drinking water, the weight gain is 0.82 kg, the average head consumption is 0.34 kg, and the diarrhea rate is 3%. 20% lower. The water temperature in the cold season is also very important for the sow. If the suckling sow feeds water and material at a temperature of 0 °C, it takes a little more than 0.5 kg of concentrate to waste the body temperature. Winter pregnant sows are fed with cold water, which is also likely to cause adverse consequences such as miscarriage. The suitable temperature for drinking water in cold season pigs is 16-20 °C for growing fattening pigs and pregnant pigs, 20-25 °C for nursery pigs, 25-28 °C for lactating sows, and 35-38 °C for suckling piglets.
There are many factors affecting the pig's water demand, such as temperature, feed type, pig size and physiological status, and many interactive forums for pigs to communicate and learn. Both have an important impact on the water demand of pigs. Under the condition of feeding, one piglet should be supplied with 75-100 L of water per day, 30 L for pregnant sows, boars and breeding pigs, and 15-20 L for young pigs and pigs. It is extremely important that the weaned pigs drink enough water during the first 2 weeks after weaning, because high protein feeds need to have a higher amount of water in order to excrete excess nitrogen in order to ensure feed intake and reduce morbidity. In particular, it is necessary to ensure the supply of water for lactating sows in the summer, which requires about 40 kg of water per day. If the amount of water is insufficient, the feed intake will decrease and the amount of lactation will decrease.
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