{"id":82211,"date":"2000-01-01T00:00:00","date_gmt":"2000-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/el-recuento-celular-de-la-leche-como-metodo-indirecto-de-diagnostico-de-mastitis-subclinicas-en-el-ganado-ovino-de-raza-churra\/"},"modified":"2000-01-01T00:00:00","modified_gmt":"2000-01-01T00:00:00","slug":"el-recuento-celular-de-la-leche-como-metodo-indirecto-de-diagnostico-de-mastitis-subclinicas-en-el-ganado-ovino-de-raza-churra","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-agrarias\/el-recuento-celular-de-la-leche-como-metodo-indirecto-de-diagnostico-de-mastitis-subclinicas-en-el-ganado-ovino-de-raza-churra\/","title":{"rendered":"El recuento celular de la leche como metodo indirecto de diagnostico de mastitis subclinicas en el ganado ovino de raza churra."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Arantzazu Ariznabarreta Oiartzabal <\/strong><\/h2>\n<p>En la presente memoria de tesis doctoral se estudi\u00f3 el rcs de la leche como m\u00e9todo indirecto de diagn\u00f3stico de la infecci\u00f3n mamaria en la oveja churra. Dicho estudio comprendi\u00f3 tres experiencias:  1. Estudio etiol\u00f3gico de las mastitis subcl\u00ednicas: la preValencia de gl\u00e1ndulas infectadas fue del 41,4% y result\u00f3 significativamente m\u00e1s elevada en los reba\u00f1os de orde\u00f1o manual que en los de orde\u00f1o mec\u00e1nico.  los estafilococos representaron el 78,9% de los aislamientos, seguidos de las corinebacterias y las estreptococ\u00e1ceas. se confirm\u00f3 la asociaci\u00f3n de s. Epidermidis, especie m\u00e1s prevalente, al orde\u00f1o manual, y de s. Aureus, las corinebacterias y algunos scn novobiocinaisensibles al rode\u00f1o mec\u00e1nico.  2. Estudio de los factores de variaci\u00f3n del rcs y p\u00e9rdidas de producci\u00f3n asociadas a las mastitis subcl\u00ednicas: la infecci\u00f3n bacteriana fue el factor de variaci\u00f3n m\u00e1s destacado. La infecci\u00f3n por el virus maedi-bisna y los factores no infecciosos -reba\u00f1o, n. De control, n. De lactaci\u00f3n y tipode parto- tuvieron un efecto significativo, pero de una importancia muy inferior. Entre los microorganismos, se establecieron cuatrocategor\u00edas de patogenicidad: (1.) Pasteurella spp. y str. Agalactiae; (2.) S. Aureus y a. Pyogenes; (3.) Scn novobiocina-sensibles, enterobacterias, enterococos y estreptococos; (4.) Corinebacterias, scn novobiocina-resistentes y micrococos. Las p\u00e9rdidas de producci\u00f3n l\u00e1ctea se cifraron, por controles, en un 6,8% en el caso de las infecciones unilaterales por scn novobiocina sensibles y en m\u00e1s de un 10% para niveles superiores de infecci\u00f3n. Por lactaciones, las p\u00e9rdidas fueron de un 10% para niveles de infecci\u00f3n medios y superaron el 20% para niveles m\u00e1ximos.  3. Umbrales de rcs: oscilaron entre 150.000 y 600.000 c\u00e9l\/ml por gl\u00e1ndulas; entre 100.000 y 400.000 c\u00e9l\/ml por controles y entre 200.000 y 700.000 c\u00e9l\/ml por lactaciones, sufriendo notables variaciones seg<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>El recuento celular de la leche como metodo indirecto de diagnostico de mastitis subclinicas en el ganado ovino de raza churra.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 El recuento celular de la leche como metodo indirecto de diagnostico de mastitis subclinicas en el ganado ovino de raza churra. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Arantzazu Ariznabarreta Oiartzabal <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Le\u00f3n<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/2000<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Carlos Gonzalo Abascal<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: el\u00edas fernando Rodriguez ferri <\/li>\n<li>Antonio Contreras de vera (vocal)<\/li>\n<li>fermin San primitivo tirados (vocal)<\/li>\n<li>beatriz Amorena zabalza (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Arantzazu Ariznabarreta Oiartzabal En la presente memoria de tesis doctoral se estudi\u00f3 el rcs de la leche [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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