中文摘要：

将32头体重15kg左右的三元杂交（杜×长×大）断奶仔猪均分成4组，对照组日粮中不添加硒，3个补硒组分别添加富硒益生菌、富硒酵母、亚硒酸钠，其剂量以硒计，均为0．3mg·kg^-1。试验期为60d。结果表明：（1）试验结束时，3个补硒组的肌肉、肾、肝中硒含量均极显著高于对照组（P〈0．01），其中富硒益生菌组和富硒酵母组极显著高于亚硒酸钠组；（2）在30和60d时，3个补硒组血液中GSH-Px活性、SOD酶活性、全血硒含量均显著或极显著高于对照组，血清中MDA含量均显著低于对照组（P〈0．05）；（3）富硒益生菌能显著提高仔猪的生长性能。

英文摘要：

A total of 32 weaned piglets （ Duroc × Landraee × Yorkshire） with body weight of 15 kg were allotted to the 4 groups in a randomized complete block design, of which 3 were assigned for test groups, and one served as control. Three different selenium sources namely selenium-enriched probiotics, selenium-enriched yeast, and sodium selenite were respectively supplemented to 3 test groups in a dosage of 0. 3 mg selenium per kilogram diet. Whole feeding experiment lasted for 60 days. The results were as follows ： （ 1 ） Contents of the muscle, kidney and liver selenium in 3 test groups were very markedly higher than control group （P 〈 0. 01 ） in the end of the experiment; （2） In the 30th day and 60th day of the experiment, blood GSH-Px activity, blood selenium concentration, serum SOD activity in 3 test groups were markedly or very markedly higher than control group （ P 〈 0. 05 or P 〈 0. 01 ）, serum MDA levels were markedly lower than control group （ P 〈 0. 05 ） ; （ 3 ） Weaned piglets performance was markedly enhanced by selenium-enriched probiotics in the experiment （P 〈0. 05）.