2012
DOI: 10.1016/j.rvsc.2011.07.016
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Molecular detection of Streptococcus agalactiae in bovine raw milk samples obtained directly from bulk tanks

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Cited by 14 publications
(16 citation statements)
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“…2 Standard curve of SAG ATCC 13813 count (log 10 cfu/mL) as determined by plate counting (log 10 cfu/mL) of SAG-inoculated skim milk and by real-time quantitative PCR (SAG qPCR, CtSAG/mL). C t = threshold cycle of the qPCR reaction Independent assays A 0 and A 00 and B 0 and B 00 were independently performed on day 1 and 2; C t = threshold cycle in which SAG qPCR occurred; CV A and CV B = CV between C t obtained from assays A 0 and A 00 and B 0 and B 00 ; CV 1, 2 = CV between C t obtained from assays performed on day 1 and 2 a Count (cfu/mL) of Streptococcus agalactiae ATCC 13813 determined by modified Edward's agar with 5 % sheep blood (Oxoid, Basingstoke, UK) from BTM were different than those found by Elias et al [9], which reported 7.77 9 10 2 cfu/mL. Differences associated with composition from different types of milk samples (BTM and CM) may have influenced the efficiency of DNA extraction directly from milk samples.…”
Section: Discussionmentioning
confidence: 79%
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“…2 Standard curve of SAG ATCC 13813 count (log 10 cfu/mL) as determined by plate counting (log 10 cfu/mL) of SAG-inoculated skim milk and by real-time quantitative PCR (SAG qPCR, CtSAG/mL). C t = threshold cycle of the qPCR reaction Independent assays A 0 and A 00 and B 0 and B 00 were independently performed on day 1 and 2; C t = threshold cycle in which SAG qPCR occurred; CV A and CV B = CV between C t obtained from assays A 0 and A 00 and B 0 and B 00 ; CV 1, 2 = CV between C t obtained from assays performed on day 1 and 2 a Count (cfu/mL) of Streptococcus agalactiae ATCC 13813 determined by modified Edward's agar with 5 % sheep blood (Oxoid, Basingstoke, UK) from BTM were different than those found by Elias et al [9], which reported 7.77 9 10 2 cfu/mL. Differences associated with composition from different types of milk samples (BTM and CM) may have influenced the efficiency of DNA extraction directly from milk samples.…”
Section: Discussionmentioning
confidence: 79%
“…These difficulties were considered as critical points associated with DNA extraction directly from milk samples [7]. Furthermore, Elias et al [9] reported a DNA extraction protocol directly from milk that was efficient in lysing bacterial cell walls without damaging the target DNA. For confirmation of the DNA extraction, amplification using the set of BMCB primers (control test) was used because DNA extracted by this protocol could not be read by NanoDrop, likely due to the presence of inhibitory substances that remained even after extraction [7].…”
Section: Discussionmentioning
confidence: 99%
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“…A análise dessas amostras possibilita estimar a ocorrência de mastite no rebanho e investigar possíveis problemas relacionados ao aumento da CBT e da CCS, além de estimar a prevalência e a ocorrência de patógenos causadores de mastite, especialmente os contagiosos Staphylococcus aureus e Streptococcus agalactiae (ELIAS et al, 2012;KEEFE, 2012).…”
Section: Qualidade Do Leiteunclassified
“…É de difícil controle por ser uma doença de etiologia multifatorial. É caracterizada por modificações físicas, químicas e microbiológicas no leite (ELIAS et al, 2012) e por uma resposta inflamatória da glândula mamária que pode ser causada por alterações metabólicas e fisiológicas, trauma do úbere, ou mais frequentemente por micro-organismos patogênicos (OVIEDO-BOYSO et al, 2007).…”
Section: Mastite Bovinaunclassified