Effects of immunological stress on the level of swineplague antibody had not significant difference in different breeds of piglets.
免疫应激对不同品种仔猪的猪瘟抗体水平无差异性影响。
2
The US, which takes 80 per cent of its exports, was in recession. The oil price slumped. An outbreak of swine flu devastated tourism. All that seemed to be missing was a plague of locusts.