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Table 1 Detection of BLV infection in six regions of HLJ

From: Genotyping bovine leukemia virus in dairy cattle of Heilongjiang, northeastern China

Year Region Farm Breed Age Samples Ne-PCR Cq-PCR Rate
2015 JX A/B Simmental 3–6 110 34 31%
2015 DQ C/D Holstein 2–5 160 16 20 10%
2015 QQHR E Holstein 2–4 100 0 0%
2015 HRB F/G Holstein 2–4 100 8 8%
2015 MDJ H Holstein 2–4 60 0 0%
2017 SH I Holstein 2–4 200 10 5%
  1. The samples mean the total amounts of samples collected from each region
  2. Numbers in Ne-PCR and Cq-PCR mean the positive samples identified by each method
  3. Ne-PCR nested PCR, Cq-PCR CoCoMo-qPCR-2