Duration of the natural infection of the mammary gland by coagulase negative staphylococci in primiparous cows /<br>Duração das infecções naturais da glândula mamaria por estafilococos coagulase negativos em vacas primíparas

One hundred fourteen primiparous cows wre analized. They wre from nine milk properties of the west region of São Paulo sate. On the seventh day of lactation. 42 (36.84%) showed infections in 69 (41.07%) quarters. The main aetiologic agents of the intramammary infections on the seventh day were coagu...

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Main Authors: Juliana Alves Dias, Rogério Salvador, Lucienne Garcia Pretto-Giordano, Júlio César de Freitas, Ernst Eckehardt Muller, Luís Carlos Vianna
Format: Article
Language:English
Published: Universidade Estadual de Londrina 2000-12-01
Series:Semina: Ciências Agrárias
Subjects:
Online Access:http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/3998
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author Juliana Alves Dias
Rogério Salvador
Lucienne Garcia Pretto-Giordano
Júlio César de Freitas
Ernst Eckehardt Muller
Luís Carlos Vianna
author_facet Juliana Alves Dias
Rogério Salvador
Lucienne Garcia Pretto-Giordano
Júlio César de Freitas
Ernst Eckehardt Muller
Luís Carlos Vianna
author_sort Juliana Alves Dias
collection DOAJ
description One hundred fourteen primiparous cows wre analized. They wre from nine milk properties of the west region of São Paulo sate. On the seventh day of lactation. 42 (36.84%) showed infections in 69 (41.07%) quarters. The main aetiologic agents of the intramammary infections on the seventh day were coagulase-negative staphylococci (CMS) with 53,62%, followed by Corynebacterium spp with 26r08% and coagulase-positive staphylococci (CPS), with 11,59% of the positive samples. From the seventh day of lactation on there was a decreasing tendency of the infections by SCN in the previously tnfected mammary quarter (r = 0,63, r2= 0,4) and simultaneously there were new infections by other pathogen in these quarter. On the 150th day, the CNS were not isolated. There was not significant difference (P3 0.05) about the number of infections by udder quarter There was significant difference (P£0rO1) between the average of the somatic cell count (SCC) of the milk samples. It. comes from the infected quarters by SCN (397 x 103/ mL) and of negative quarters (104 x 103/mL).<p><p>
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spelling doaj.art-f5efb465732a4c79ab9c75acf74dc88c2022-12-21T21:17:27ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592000-12-0121191410.5433/1679-0359.2000v21n1p9Duration of the natural infection of the mammary gland by coagulase negative staphylococci in primiparous cows /<br>Duração das infecções naturais da glândula mamaria por estafilococos coagulase negativos em vacas primíparasJuliana Alves DiasRogério SalvadorLucienne Garcia Pretto-GiordanoJúlio César de FreitasErnst Eckehardt MullerLuís Carlos ViannaOne hundred fourteen primiparous cows wre analized. They wre from nine milk properties of the west region of São Paulo sate. On the seventh day of lactation. 42 (36.84%) showed infections in 69 (41.07%) quarters. The main aetiologic agents of the intramammary infections on the seventh day were coagulase-negative staphylococci (CMS) with 53,62%, followed by Corynebacterium spp with 26r08% and coagulase-positive staphylococci (CPS), with 11,59% of the positive samples. From the seventh day of lactation on there was a decreasing tendency of the infections by SCN in the previously tnfected mammary quarter (r = 0,63, r2= 0,4) and simultaneously there were new infections by other pathogen in these quarter. On the 150th day, the CNS were not isolated. There was not significant difference (P3 0.05) about the number of infections by udder quarter There was significant difference (P£0rO1) between the average of the somatic cell count (SCC) of the milk samples. It. comes from the infected quarters by SCN (397 x 103/ mL) and of negative quarters (104 x 103/mL).<p><p>http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/3998MastiteEstafilococos coagulase negativosVacas primíparas.
spellingShingle Juliana Alves Dias
Rogério Salvador
Lucienne Garcia Pretto-Giordano
Júlio César de Freitas
Ernst Eckehardt Muller
Luís Carlos Vianna
Duration of the natural infection of the mammary gland by coagulase negative staphylococci in primiparous cows /<br>Duração das infecções naturais da glândula mamaria por estafilococos coagulase negativos em vacas primíparas
Semina: Ciências Agrárias
Mastite
Estafilococos coagulase negativos
Vacas primíparas.
title Duration of the natural infection of the mammary gland by coagulase negative staphylococci in primiparous cows /<br>Duração das infecções naturais da glândula mamaria por estafilococos coagulase negativos em vacas primíparas
title_full Duration of the natural infection of the mammary gland by coagulase negative staphylococci in primiparous cows /<br>Duração das infecções naturais da glândula mamaria por estafilococos coagulase negativos em vacas primíparas
title_fullStr Duration of the natural infection of the mammary gland by coagulase negative staphylococci in primiparous cows /<br>Duração das infecções naturais da glândula mamaria por estafilococos coagulase negativos em vacas primíparas
title_full_unstemmed Duration of the natural infection of the mammary gland by coagulase negative staphylococci in primiparous cows /<br>Duração das infecções naturais da glândula mamaria por estafilococos coagulase negativos em vacas primíparas
title_short Duration of the natural infection of the mammary gland by coagulase negative staphylococci in primiparous cows /<br>Duração das infecções naturais da glândula mamaria por estafilococos coagulase negativos em vacas primíparas
title_sort duration of the natural infection of the mammary gland by coagulase negative staphylococci in primiparous cows br duracao das infeccoes naturais da glandula mamaria por estafilococos coagulase negativos em vacas primiparas
topic Mastite
Estafilococos coagulase negativos
Vacas primíparas.
url http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/3998
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