{"id":18292,"date":"2021-05-01T00:08:31","date_gmt":"2021-05-01T05:08:31","guid":{"rendered":"https:\/\/dellait.com\/?post_type=insights&#038;p=18292"},"modified":"2024-12-19T15:51:24","modified_gmt":"2024-12-19T21:51:24","slug":"dietas-de-verano-con-mas-o-menos-forraje","status":"publish","type":"insights","link":"https:\/\/dellait.com\/es\/insights\/dietas-de-verano-con-mas-o-menos-forraje\/","title":{"rendered":"\u00bfDietas de verano con m\u00e1s o menos forraje? | Dellait"},"content":{"rendered":"<p>La <strong>acidosis ruminal<\/strong> es un proceso derivado de la acumulaci\u00f3n excesiva de \u00e1cidos grasos vol\u00e1tiles en el rumen o de un aporte insuficiente de sustancias que neutralicen su acidez (<span style=\"text-decoration: underline; color: #333333;\"><a style=\"color: #333333; text-decoration: underline;\" href=\"https:\/\/dellait.com\/es\/uso-de-algas-marinas-calcareas-como-tampon-ruminal\/\" target=\"_blank\" rel=\"noopener\">tampones<\/a><\/span>) a trav\u00e9s de la saliva o de la ingesti\u00f3n de alimento.<\/p>\n<p>En vacas sometidas a estr\u00e9s cal\u00f3rico, los cambios fisiol\u00f3gicos, metab\u00f3licos o de comportamiento aumentan su susceptibilidad a padecer <strong>acidosis ruminal subaguda o subcl\u00ednica<\/strong> (ARS), que se caracteriza por ca\u00eddas del pH ruminal hasta valores de entre 5,2 y 5,6.<\/p>\n<p>Mishra y col. (1970) observaron pH ruminales inferiores en vacas en ambientes c\u00e1lidos (29,4 \u00b0C y 85% humedad relativa \u2014HR\u2014) alimentadas con dietas de alto contenido en forraje (65%; pH de 6,1 vs. 6,4) en comparaci\u00f3n con ambientes fr\u00edos (18,3 \u00b0C y 50 % HR).<\/p>\n<p>Esta diferencia en el pH ruminal fue m\u00e1s acusada cuando la dieta conten\u00eda<strong> menor cantidad de forraje<\/strong> (35%; pH de 5,6 vs. 6,1). Adem\u00e1s del pH ruminal medio, tambi\u00e9n es importante el tiempo durante el cual el pH se mantiene en niveles bajos.<\/p>\n<h4>Efectos del estr\u00e9s cal\u00f3rico<\/h4>\n<p>Estos son los <strong>principales cambios<\/strong> que se producen en los animales durante periodos de estr\u00e9s cal\u00f3rico:<\/p>\n<ol>\n<li>Las vacas afectadas por estr\u00e9s cal\u00f3rico consumen menos alimento y, por tanto, rumian menos.<\/li>\n<li>Durante el estr\u00e9s cal\u00f3rico las vacas incrementan el ritmo respiratorio (jadeo) para aumentar la eliminaci\u00f3n de calor a trav\u00e9s de los pulmones.<\/li>\n<li>Cambios en el comportamiento alimentario tambi\u00e9n contribuyen a la acidosis ruminal.<\/li>\n<\/ol>\n<p>Continua leyendo este articulo publicado en <span style=\"text-decoration: underline; color: #333333;\"><em><a style=\"color: #333333; text-decoration: underline;\" href=\"https:\/\/dellait.com\/wp-content\/uploads\/2020\/05\/8-ALB-Dietas-para-verano-mas-o-menos-forraje.pdf\" target=\"_blank\" rel=\"noopener\">Albeitar<\/a><\/em><\/span>.<\/p>\n","protected":false},"featured_media":21358,"template":"","categories":[690],"class_list":["post-18292","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>\u00bfDietas de verano con m\u00e1s o menos forraje? 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