Antibiotics Breed Drug Resistance in Pigs Pigs given low doses of antibiotics had more E. coli in their guts, and that bacteria showed an increased resistance to antibiotics, according to new research. The study confirms the routine practice of feedi...
[全屏观看] 点击右键- 另存为 可保存这个Flash影片...
[全屏观看] 点击右键- 另存为 可保存这个Flash影片...
[全屏观看] 点击右键- 另存为 可保存这个Flash影片...