From the observation of intestinal morphology of piglets, the antibiotic group and the medium dose group had the basic integrity of the intestinal tissue structure.

从仔猪肠道形态上观察，抗生素组和中剂量组仔猪肠道组织结构基本完整。

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Experiments prove that the dead rate of the high dose group or the medium dose group of the polynucleotide microcapsule is obviously lower than that of an infectious control group.

试验证明，多聚核苷酸微囊高、中剂量组死亡率显著低于感染对照组的死亡率。

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The length and rate of DNA migration in low dose group were markedly different from medium and high dose groups. There was no significant difference between medium and high dose groups.

微核率随着甲醛剂量的增加而升高，迁移率和迁移度在低剂量组与中、高剂量组之间有显著差异，中与高剂量组之间无显著差异。

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