2018
DOI: 10.1590/1678-5150-pvb-5252
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Estudo comparativo das diferentes técnicas empregadas na contagem diferencial de leucócitos no leite

Abstract: RESUMO: A contagem de células somáticas (CCS) é um parâmetro amplamente utilizado para monitorar a saúde do úbere e a qualidade do leite, porém não diferencia as distintas populações leucocitárias. Portanto, a diferenciação das populações celulares no leite pode aprimorar o diagnóstico da mastite bovina. Dessa forma, o objetivo do presente trabalho foi avaliar as diferentes técnicas de contagem diferencial de leucócitos no leite para diagnosticar precisamente a mastite. Para tal, foram utilizadas 31 vacas da r… Show more

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Cited by 3 publications
(12 citation statements)
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References 24 publications
(45 reference statements)
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“…Differential cell counts can be obtained by light microscopy and flow cytometry. Nonetheless, the accuracy of flow cytometry is related to the difficulty in differentiating cell populations by light microscopy and the much higher number of cells per sample that are analyzed by flow cytometry (Koess and Hamann, 2008;Pilla et al, 2013;Takano et al, 2018). Still, even using flow cytometry, the mAb used can affect the DCC outcomes.…”
Section: Discussionmentioning
confidence: 99%
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“…Differential cell counts can be obtained by light microscopy and flow cytometry. Nonetheless, the accuracy of flow cytometry is related to the difficulty in differentiating cell populations by light microscopy and the much higher number of cells per sample that are analyzed by flow cytometry (Koess and Hamann, 2008;Pilla et al, 2013;Takano et al, 2018). Still, even using flow cytometry, the mAb used can affect the DCC outcomes.…”
Section: Discussionmentioning
confidence: 99%
“…Although there is no consensus on the main leukocyte population in healthy mammary quarters (Dosogne et al, 2003;Schwarz et al, 2011;Pilla et al, 2012;Pilla et al, 2013;Blagitz et al, 2015a;Takano et al, 2018), our study strengthens the idea that milk monocytes/macrophages represent the major leukocyte population in healthy mammary gland, as previously proposed (Sarikaya et al, 2004(Sarikaya et al, , 2005Merle et al, 2007;Damm et al, 2017;Gonçalves et al, 2017). In contrast to our results, Dosogne et al (2003), Schwarz et al (2011), andPilla et al (2012) described that lymphocytes represent the predominant cell population, which counterposes the higher percentage of monocyte/macrophages in healthy mammary glands and higher percentage of T cells (CD3 + ) and CD8 + T lymphocytes in the truly infected quarters from our study.…”
Section: Discussionmentioning
confidence: 99%
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“…Infection by BLV also negatively impacts the culling rate of dairy cattle, and AL animals may show decreased productivity and profitability (18). Thus, these findings raised questions about the effects of BLV on mammary gland immunity, in which macrophages are the main population present in milk from health mammary glands (19)(20)(21)(22)(23)(24), thus being the first defense cells to come into contact with the pathogen that causes mastitis.…”
Section: Introductionmentioning
confidence: 99%