Additional file 4 of Descriptive analyses of maternally-derived antibody levels against porcine circovirus 2 (PCV-2) in 3- and 21-day-old piglets from farms of four European countries using different vaccination protocols in sows
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Additional file 4. Table S4. Characteristics of the 30 Spanish Farms included in this study.
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figshare创建时间：
2022-10-04
