本文采用2×2双因子两水平试验设计探讨了饮水温度（DWT）和环境富集（EE）对断奶仔猪生产性能以及营养素利用的影响。试验选用30日龄断奶仔猪100头，随机分为对照（DWT11-EE）、温水（DWT30-EE）、环境富集（DWT11+EE）、温水+环境富集（DWT30+EE）4组，每组5个重复，每个重复5头（3母+2公），饲养40 d。结果显示：(1)添加富集材料时，30 ℃饮水组断奶仔猪平均日饮水量比11 ℃饮水组增加23.4％（P<0.05）；温水温度显著降低断奶仔猪料肉比（F/G）（P<0.05）、饮水温度和环境富集对试验猪平均日增重（ADG）和平均日采食量（ADFI）的交互作用极显著（P<0.01）；(2)饮水温水显著提高日粮磷（P）的表观消化率（P<0.05）；饮水温度和环境富集对日粮干物质、粗蛋白质、粗脂肪、钙和磷表观吸收量有极显著的交互作用（P<0.01）。由此得出，饮30 ℃温水可提高断奶仔猪饲料转化效率，增加饮水量；对断奶仔猪，添加环境富集材料时宜饮11 ℃凉水，不添加环境富集材料时宜饮30 ℃温水。

One 2×2 factorial design trial was conducted to determine the effects of drinking water temperature (DWT: 11 or 30 ℃) and environmental enrichment (EE: no addition or addition) on performance and nutrients utilization in weaned piglets for 40 days. One hundred 30-day-old weaned piglets were randomly divided into control (DWT11-EE), warm water (DWT30-EE), EE (DWT11+EE), warm water and EE (DWT30+EE) group, and each group with 5 replicates of 5 pigs (3 boars and 2 gilts). The results showed that: (1) with EE drinking, 30 ℃ water significantly increased average daily water intake by 23.4% (P<0.05); DWT significantly decreased F/G (P<0.05); DWT and EE had marked interactions on average daily feed intake (ADFI) and average daily gain (ADG) (P<0.01); (2) DWT increased the apparent digestibility of phosphate (P) significantly (P<0.05). DWT and EE had significant interactions on the apparent absorptive amount of dry matter (DM), CP, ether extract, Ca and P (P<0.01). It was concluded that drinking 30 ℃ water increased feed conversion ratio and average daily water intake in the weaned piglets, and that drinking 11 ℃ water was suitable for weaned piglets with EE and drinking 30 ℃ water was suitable for weaned piglets without EE.［Chinese Journal of Animal Nutrition, ２００9，２1（5）:640-644］