{"id":17967,"date":"2021-05-01T00:55:39","date_gmt":"2021-05-01T05:55:39","guid":{"rendered":"https:\/\/dellait.com\/?post_type=insights&#038;p=17967"},"modified":"2024-12-13T15:31:18","modified_gmt":"2024-12-13T21:31:18","slug":"alimentacion-con-harina-de-colza-para-vacas-lecheras","status":"publish","type":"insights","link":"https:\/\/dellait.com\/es\/insights\/alimentacion-con-harina-de-colza-para-vacas-lecheras\/","title":{"rendered":"Alimentaci\u00f3n con harina de colza para vacas lecheras | Dellait"},"content":{"rendered":"<p>La gran expansi\u00f3n de las<strong> plantas de procesamiento de colza<\/strong> que ha ocurrido en Norteam\u00e9rica y en la Uni\u00f3n Europea durante la \u00faltima d\u00e9cada ha incrementado la disponibilidad de<strong> harina de colza <\/strong>para la industria de alimentaci\u00f3n animal.<\/p>\n<h4>Composici\u00f3n nutritiva<\/h4>\n<p>Investigadores de la Universidad de Manitoba, la Universidad de South Dakota State y el US Dairy Forage Research Center (Wisconsin), evaluaron la <strong>composici\u00f3n nutritiva y la degradaci\u00f3n ruminal de la prote\u00edna de la harina de colza <\/strong>procedente de plantas procesadoras canadienses. Los contenidos medios de varios nutrientes, como porcentaje sobre la materia seca (MS), se muestran en la tabla.<\/p>\n<p>En general, <strong>l<\/strong>a harina de colza es una buena fuente de prote\u00edna de sobrepaso (42,6 % de la prote\u00edna total) y amino\u00e1cidos limitantes (lisina y metionina) con bajo nivel de grasa. Uno\u00a0 de los principales inconvenientes de la <span style=\"text-decoration: underline; color: #808080;\"><a style=\"color: #808080; text-decoration: underline;\" href=\"https:\/\/dellait.com\/es\/nivel-de-inclusion-optimo-de-harina-de-colza-en-la-dieta\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #333333; text-decoration: underline;\">harina de colza<\/span><\/a><\/span> es su alto contenido en fibra indigestible. Pruebas realizadas in vitro en un laboratorio comercial mostraron que m\u00e1s del 50 % de la fibra es indigestible (estimada despu\u00e9s de 120 h de incubaci\u00f3n).<\/p>\n<p>La informaci\u00f3n sobre la alimentaci\u00f3n de harina de colza para ganado lechero es muy escasa. Tres estudios publicados por cient\u00edficos de \u201cSouth Dakota State University\u201d evaluaron los efectos del forraje y del almid\u00f3n sobre dietas de vacas lecheras que conten\u00edan harina de colza como el principal suplemento proteico.<\/p>\n<h4>Efectos del nivel de forraje<\/h4>\n<p>En el primer trabajo, los investigadores (Schuler y col., 2015) estudiaron la concentraci\u00f3n \u00f3ptima de forraje en las dietas de vacas en lactaci\u00f3n. Las dietas conten\u00edan 42, 50, 58 o 66\u00a0% de forraje (70\u00a0% ensilado de ma\u00edz y 30\u00a0% ensilado de alfalfa) y 11\u00a0% de harina de colza en funci\u00f3n de MS. El nivel de prote\u00edna bruta y de prote\u00edna metabolizable fue similar entre tratamientos.<\/p>\n<p>Continua leyendo este articulo publicado en <span style=\"text-decoration: underline;\"><span style=\"color: #808080; text-decoration: underline;\"><a style=\"color: #808080; text-decoration: underline;\" href=\"https:\/\/dellait.com\/wp-content\/uploads\/2020\/05\/55-ALB-Alimentacion-con-harina-de-colza.pdf\" target=\"_blank\" rel=\"noopener\"><em><span style=\"color: #333333; text-decoration: underline;\">Albeitar<\/span><\/em><\/a><\/span><\/span>.<\/p>\n","protected":false},"featured_media":16260,"template":"","categories":[690],"class_list":["post-17967","insights","type-insights","status-publish","has-post-thumbnail","hentry","category-insights-es"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Alimentaci\u00f3n con harina de colza para vacas lecheras | Dellait<\/title>\n<meta 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