摘要
试验在两条万头猪生产线的生长猪舍内同步进行。在生长猪正常日粮中添加0 .0 5 %的活菌制剂 ,添加前和持续添加 1 0 d后 ,分别测定猪舍内氨气含量和粪便、尿中总氮和氨氮的浓度。结果表明 ,连续使用活菌制剂 1 0 d后 ,两条线舍内氨含量分别降低了 40 .2 8%和5 6.46% ,尿中总氮和氨氮降低 2 5 %～ 38% ,差异显著 ;
The pilot experiment was finished in fattening units of two production lines The living formulation was added to the diet by 0 05% during the test Before using formulation and using ten days later, the air was sampled for determination the ammonia in house, and fecal and urine was sampled respectively for measurement total nitrogen and ammonia nitrogen The results showed that the ammonia decreased 40 28% and 56 46% respectively in two houses, and that total nitrogen and ammonia nitrogen decreased 25%~38% in urine, and that they changed a little after using the formulation \;
出处
《家畜生态》
2002年第2期20-23,共4页
Ecology of Domestic Animal
