Samuel Ryan
Department of Animal Science, South Dakota State University, Brookings, SD 57007, USA.
Vet Sci. 2022 Nov 8;9(11):622. doi: 10.3390/vetsci9110622.
High concentrations of total dissolved solids (TDS) in water have been reported to increase the incidence of diarrhea and reduce nursery pig growth performance. The objective of this study was to investigate the effects of drinking water with high concentrations of TDS from sulfate salts on nursery pigs. Weaned pigs sorted to equalize gender were placed in 44 pens with 26 pigs per pen. One of four water treatments was randomly assigned to each pen: (1) combination of CaSO4, MgSO4, and NaSO4; (2) CaSO4; (3) MgSO4; (4) NaSO4. Access to water and feed (nursery diets fed in four phases) was unrestricted throughout. The weights of pens were measured, feed remaining on weigh days was calculated, and pen water meters were read on d 0, 7, 21, 35, and 42. Water treatment did not affect (p > 0.07) average daily gain, average daily feed intake, or gut integrity of pigs. Water disappearance tended to be greater (p = 0.10) in pens receiving the CaSO4 water compared to the combination treatment from d 21 to 35. The TDS concentrations from sulfate salts used in this experiment did not impact the growth performance or feed or water disappearance of newly weaned nursery pigs.
据报道，水中高浓度的总溶解固体（TDS）会增加腹泻的发生率并降低仔猪的生长性能。本研究的目的是调查饮用含高浓度硫酸盐类TDS的水对仔猪的影响。将按性别均衡挑选的断奶仔猪放入44个栏中，每个栏26头猪。每个栏随机分配四种水处理之一：（1）硫酸钙、硫酸镁和硫酸钠的组合；（2）硫酸钙；（3）硫酸镁；（4）硫酸钠。整个过程中，猪自由饮水和采食（分四个阶段饲喂仔猪日粮）。测量栏的重量，计算称重日剩余的饲料量，并在第0、7、21、35和42天读取栏水表的读数。水处理对猪的平均日增重、平均日采食量或肠道完整性没有影响（p>0.07）。从第21天到第35天，与组合处理相比，接受硫酸钙水的栏中，水的消耗量倾向于更高（p=0.10）。本实验中使用的硫酸盐类的TDS浓度对新断奶仔猪的生长性能、饲料或水的消耗量没有影响。
