[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-216890-en":3,"doc-seo-216890-105":30,"detail-sidebar-cat-0-en-105":92},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":20,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":21,"language":22,"language_code":23,"site_id":24,"html_lang":23,"table_of_contents":25,"faqs":26,"seo_title":27,"seo_description":14,"update_tm":28,"read_time":29},216890,8796095462418,"Noah","https://ap-avatar.wpscdn.com/avatar/80000253c1241d02b47?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778826106357471780",8,"Research & Report","Evaluation of Chromogenic Culture Media for Rapid Identification of Gram-Positive Bacteria Causing Subclinical Mastitis in Postpartum Period","The study evaluates two chromogenic culture media for presumptive microbiological identification of mastitis-causing pathogens in postpartum milk samples, focusing on Gram-positive bacteria associated with subclinical mastitis. It addresses limitations of traditional approaches by comparing colony characteristics on chromogenic media with blood agar, including colony number, color, size, and hemolysis plus colony staining. A total of 536 samples are analyzed using a gold-standard framework with true-positive, true-negative, false-positive, and false-negative metrics.","Evaluation of Chromogenic Culture Media for Rapid Identification of Gram-Positive Bacteria Causing Subclinical Mastitis in Postpartum Period  \nBreno L. N. Garcia 1 , Brunna M. Granja 1 , Carlos E. Fidelis ¹ , Gustavo Freu¹ , Renata de F. Leite ¹ ,  \nMarcos V. dos Santos 1  \n1University of Sao Paulo, Pirassununga, São Paulo, Brazil  \nPost-partum mastitis  \n\n| NEB | • Poorly response to IMI\u003Cbr>• Harm neutrophils and phagocytes migration and activity |\n| --- | --- |\n\n(AMARAL et al. , 2012)  \n\n| Pre-existing and uncured IMI and new IMI = ↑ risk of CM postpartum | Dry Period |\n| --- | --- |\n\n(ARRUDA et al. , 2013)  \nLaboratório de Pesquisa em  \nQualidade do Leite – [FMVZ/USP ](FMVZ/USP  qualileite.org)[ qualileite.org](FMVZ/USP  qualileite.org)   \nOn-farm Culture  \nChromogenic media  \nVisual differentiation  \nSp  \nSe  \nLaboratório de Pesquisa em Qualidade do Leite – FMVZ/USP  \nDifferentiate species  \n(FERREIRA et al. , 2018)  \n[qualileite.org](qualileite.org)  \nObjective  \nEvaluate two chromogenic culture media for the presumptive microbiological identification of mastitis-causing pathogens in postpartum milk samples  \nLaboratório de Pesquisa em Qualidade do Leite – FMVZ/USP  \nStrep. uberis  \nStrep. agalactiae  \nStrep. dysgalactiae Staph. aureus  \nStaph. saprophyticus  \nStaph. epidermidis  \n[qualileite.org](qualileite.org)  \nChromogenic media  \nCHROMagar Mastitis GP base (GP) CHROMagar Staphylococcus (S)  \nGram-positive bacteria Staphylococcus  \nTurquoise blue  \nStrep. agalactiae Strep. dysgalactiae  \nTurquoise blue  \nStaph. saprophyticus  \nPink  \nStaph. aureus  \nPink  \nStaph. aureus  \nCompared with blood agar (BA)  \nMetallic blue  \nStrep. uberis Enterococcus spp.  \nColourless/Pinkish  \nStaph. epidermidis  \nLaboratório de Pesquisa em  \nQualidade do Leite – [FMVZ/USP ](FMVZ/USP  qualileite.org)[ qualileite.org](FMVZ/USP  qualileite.org)   \n536 samples  \nLaboratório de Pesquisa em Qualidade do Leite – FMVZ/USP  \nAnalysis  \nBA  \n• Number of colonies  \n• Color  \n• Size  \n• Hemolysis  \nColony staining  \n[qualileite.org](qualileite.org)  \nLaboratório de Pesquisa em  \nQualidade do Leite – FMVZ/USP  \nGold standard  \n• TP: true-positive  \n• TN: true-negative  \n• FP: false-positive  \n• FN: false-negative  \n[qualileite.org](qualileite.org)","cbCaivjK36oy3pKN","https://ap.wps.com/l/cbCaivjK36oy3pKN","pdf",1013116,1,16,"English","en",105,"# Objective\n## Pathogens and target groups\n# Methods\n## Culture media evaluated\n## Sample size and comparison\n## Assessment criteria and gold standard","[{\"question\":\"What is the main objective of the study?\",\"answer\":\"To evaluate two chromogenic culture media for presumptive identification of mastitis-causing pathogens in postpartum milk samples.\"},{\"question\":\"Which types of media are compared in the evaluation?\",\"answer\":\"The study compares chromogenic media (CHROMagar Mastitis GP base and CHROMagar Staphylococcus) with blood agar (BA).\"},{\"question\":\"What criteria are used to assess bacterial growth and identification?\",\"answer\":\"Assessment includes colony number, color, size, and hemolysis, supported by colony staining and a gold-standard TP/TN/FP/FN evaluation.\"}]","Evaluation of Chromogenic Culture Media for Rapid Identification of Gram-Positive Bacteria Causing Subclinical Mastitis in Postpartum Period | PDF",1788828159,40,{"code":4,"msg":31,"data":32},"ok",{"site_id":24,"language":23,"slug":33,"title":13,"keywords":34,"description":14,"schema_data":35,"social_meta":87,"head_meta":89,"extra_data":91,"updated_unix":28},"evaluation-of-chromogenic-culture-media-for-rapid-identification-of-gram-positive-bacteria-causing-subclinical-mastitis-in-postpartum-period","",{"@graph":36,"@context":86},[37,54,69],{"@type":38,"itemListElement":39},"BreadcrumbList",[40,44,48,51],{"item":41,"name":42,"@type":43,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":45,"name":46,"@type":43,"position":47},"https://docshare.wps.com/document/","Document",2,{"item":49,"name":12,"@type":43,"position":50},"https://docshare.wps.com/document/research-report/",3,{"item":52,"name":13,"@type":43,"position":53},"https://docshare.wps.com/document/evaluation-of-chromogenic-culture-media-for-rapid-identification-of-gram-positive-bacteria-causing-subclinical-mastitis-in-postpartum-period/216890/",4,{"url":52,"name":13,"@type":55,"author":56,"headline":13,"publisher":58,"fileFormat":61,"inLanguage":23,"description":14,"dateModified":62,"datePublished":63,"encodingFormat":61,"isAccessibleForFree":64,"interactionStatistic":65},"DigitalDocument",{"name":9,"@type":57},"Person",{"url":41,"name":59,"@type":60},"DocShare","Organization","application/pdf","2026-09-11","2026-09-08",true,{"@type":66,"interactionType":67,"userInteractionCount":20},"InteractionCounter",{"@type":68},"ViewAction",{"@type":70,"mainEntity":71},"FAQPage",[72,78,82],{"name":73,"@type":74,"acceptedAnswer":75},"What is the main objective of the study?","Question",{"text":76,"@type":77},"To evaluate two chromogenic culture media for presumptive identification of mastitis-causing pathogens in postpartum milk samples.","Answer",{"name":79,"@type":74,"acceptedAnswer":80},"Which types of media are compared in the evaluation?",{"text":81,"@type":77},"The study compares chromogenic media (CHROMagar Mastitis GP base and CHROMagar Staphylococcus) with blood agar (BA).",{"name":83,"@type":74,"acceptedAnswer":84},"What criteria are used to assess bacterial growth and identification?",{"text":85,"@type":77},"Assessment includes colony number, color, size, and hemolysis, supported by colony staining and a gold-standard TP/TN/FP/FN evaluation.","https://schema.org",{"og:url":52,"og:type":88,"og:title":13,"og:site_name":59,"og:description":14},"article",{"robots":90,"canonical":52},"index,follow",{"doc_id":7,"site_id":24},{"code":4,"msg":5,"data":93},[94,98,102,106,111,116,120,123,128,131,135],{"id":20,"doc_module":4,"doc_module_name":46,"category_name":95,"show_sort_weight":96,"slug":97},"Story & Novel",90,"story-novel",{"id":47,"doc_module":4,"doc_module_name":46,"category_name":99,"show_sort_weight":100,"slug":101},"Literature",80,"literature",{"id":53,"doc_module":4,"doc_module_name":46,"category_name":103,"show_sort_weight":104,"slug":105},"Exam",70,"exam",{"id":107,"doc_module":4,"doc_module_name":46,"category_name":108,"show_sort_weight":109,"slug":110},5,"Comic",60,"comic",{"id":112,"doc_module":4,"doc_module_name":46,"category_name":113,"show_sort_weight":114,"slug":115},6,"Technology",50,"technology",{"id":117,"doc_module":4,"doc_module_name":46,"category_name":118,"show_sort_weight":29,"slug":119},7,"Healthcare","healthcare",{"id":11,"doc_module":4,"doc_module_name":46,"category_name":12,"show_sort_weight":121,"slug":122},30,"research-report",{"id":124,"doc_module":4,"doc_module_name":46,"category_name":125,"show_sort_weight":126,"slug":127},9,"Religion & Spirituality",20,"religion-spirituality",{"id":126,"doc_module":4,"doc_module_name":46,"category_name":129,"show_sort_weight":126,"slug":130},"World Cup","world-cup",{"id":132,"doc_module":4,"doc_module_name":46,"category_name":133,"show_sort_weight":132,"slug":134},10,"Lifestyle","lifestyle",{"id":136,"doc_module":4,"doc_module_name":46,"category_name":137,"show_sort_weight":107,"slug":138},19,"General","general"]