{"id":15846,"date":"2002-01-03T00:00:00","date_gmt":"2002-01-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/composicion-qua%c2%admica-digestibilidad-y-cinetica-de-fermentacion-ruminal-in-vitro-de-arbustos\/"},"modified":"2002-01-03T00:00:00","modified_gmt":"2002-01-03T00:00:00","slug":"composicion-qua%c2%admica-digestibilidad-y-cinetica-de-fermentacion-ruminal-in-vitro-de-arbustos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-agrarias\/composicion-qua%c2%admica-digestibilidad-y-cinetica-de-fermentacion-ruminal-in-vitro-de-arbustos\/","title":{"rendered":"Composici\u00f3n qu\u00edmica, digestibilidad y cin\u00e9tica de fermentaci\u00f3n ruminal in vitro de arbustos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Hajer Ammar <\/strong><\/h2>\n<p>El objetivo general de nuestro trabajo ha sido obtener informaci\u00f3n con el fin de evaluar el potencial real de distintas plantas arbustivas como alimento para el ganado ovino y caprino, asumiendo que este tipo de informaci\u00f3n tiene un considerable inter\u00e9s para optimizar el manejo del pastoreo de los animales. Para ello se han realizado diversos estudios cada uno de ellos con unos objetivos espec\u00edficos que pueden definirse como:  1,- estudiar el valor nutritivo de material arbustivo obtenido de varias especies (erica australis, cistus llaurifolius, quercus pyrenaica, cytisus scoparius, genista florida, genista scorpius y rosa canina) en distintas \u00e9pocas del a\u00f1o.  2,- determinar la presencia y abundancia de factores aninutritivos en estos recursos vegetales.  3,- realizar un estudio comparativo entre el ganado ovino y el caprino en la utilizaci\u00f3n digestiva de estas plantas arbustivas.  existi\u00f3 una enorme variabilidad tanto en la composici\u00f3n qu\u00edmica como en lo relativo a la digestibilidad y a la cin\u00e9tica de fermentaci\u00f3n ruminal in vitro de las partes comestibles de los arbustos estudiados. Los factores que explican dicha variabilidad son, fundamentalmente, de tres tipos: la especie vegetal, la parte u \u00f3rgano de la planta y la estacionalidad de los ciclos vegetativos. Entre los par\u00e1metros estudiados que afectan al valor nutritivo del material arbustivo, los que limitan en mayor medida la utilizaci\u00f3n digestiva por los animales son el grado de lignificaci\u00f3n de la pared celular y el contenido en taninos.  dentro de la gama de las especies estudiadas, las de mejor valor nutritivo fueron las leguminosas (cytisus scoparius, genista florida y genista scorpius) por su menor contenido en fibra neutro detergente, lignina y taninos y su mayor digestabilidad y contenido proteico. En el extremo opuesto se encuentra: erica asutralis. Los par\u00e1metros relativos al valor nutritivo empeoraron en la mayor\u00eda de las especies al avanzar el cicl<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Composici\u00f3n qu\u00edmica, digestibilidad y cin\u00e9tica de fermentaci\u00f3n ruminal in vitro de arbustos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Composici\u00f3n qu\u00edmica, digestibilidad y cin\u00e9tica de fermentaci\u00f3n ruminal in vitro de arbustos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Hajer Ammar <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Le\u00f3n<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/03\/2002<\/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>Secundino L\u00f3pez Puente<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Gonz\u00e1lez \u00e1lvarez Jes\u00fas salvador <\/li>\n<li>pilar De frutos fern\u00e1ndez (vocal)<\/li>\n<li>Javier Alvarez mart\u00ednez (vocal)<\/li>\n<li>adolfo Falag\u00e1n prieto (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Hajer Ammar El objetivo general de nuestro trabajo ha sido obtener informaci\u00f3n con el fin de evaluar [&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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