{"id":16852,"date":"2025-02-17T16:40:37","date_gmt":"2025-02-17T15:40:37","guid":{"rendered":"https:\/\/mycokingdom.net\/?p=16852"},"modified":"2025-02-17T16:40:37","modified_gmt":"2025-02-17T15:40:37","slug":"combate-ao-desoxinivalenol-na-pecuaria-leiteira","status":"publish","type":"post","link":"https:\/\/mycokingdom.net\/pt-pt\/combate-ao-desoxinivalenol-na-pecuaria-leiteira\/","title":{"rendered":"Combate ao desoxinivalenol na pecu\u00e1ria leiteira"},"content":{"rendered":"[vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” top_padding=”2%” constrain_group_4=”yes” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][nectar_cta btn_style=”underline” heading_tag=”p” button_color=”default” text_color=”#269756″ button_border_thickness=”0px” link_type=”regular” alignment=”left” alignment_tablet=”default” alignment_phone=”default” display=”inline” display_tablet=”inherit” display_phone=”inherit” icon_family=”none” link_text=”Voltar \u00e0s not\u00edcias” url=”\/mycotoxins-pt\/#news” text=”\u2190” font_size_desktop=”14px”][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” constrain_group_4=”yes” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” top_padding=”2%” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”horizontal” column_element_direction_tablet=”horizontal” column_element_direction_phone=”horizontal” column_element_alignment=”center” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” font_color=”#269756″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][nectar_icon icon_family=”fontawesome” icon_style=”default” icon_color_type=”color_scheme” icon_color=”Extra-Color-1″ icon_padding=”0px” pointer_events=”all” icon_fontawesome=”fa fa-clock-o” icon_size=”15″ margin_right=”7px” margin_top=”1px”][vc_column_text][rt_reading_time label=”Tempo de leitura :” postfix=”minutes” postfix_singular=”minute”][\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” top_padding=”2%” constrain_group_1=”yes” bottom_padding=”2%” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”padding-2-percent” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”left” left_margin=”7px” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”advanced” border_left_desktop=”1″ column_border_color=”#269756″ column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][vc_column_text css=”” el_class=”med” text_direction=”default”]Neste Myco’News, destacamos descobertas recentes sobre o desoxinivalenol (DON), que representa uma amea\u00e7a significativa \u00e0 sa\u00fade das vacas leiteiras, \u00e0 fun\u00e7\u00e3o ruminal e \u00e0 produ\u00e7\u00e3o de leite. Aqui est\u00e3o as tr\u00eas principais percep\u00e7\u00f5es de pesquisas recentes realizadas in vivo na China:<\/strong>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” top_padding=”2%” constrain_group_1=”yes” bottom_padding=”2%” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]\n

1. Interrup\u00e7\u00e3o da fun\u00e7\u00e3o e da microbiota do r\u00famen<\/h3>\n

A contamina\u00e7\u00e3o por DON na ra\u00e7\u00e3o interrompe significativamente a fermenta\u00e7\u00e3o ruminal. Ela reduz os \u00e1cidos graxos vol\u00e1teis (VFAs), como o propionato e o butirato, que s\u00e3o essenciais para a produ\u00e7\u00e3o de energia em ruminantes. Al\u00e9m disso, o DON altera o ecossistema microbiano no r\u00famen, diminuindo as bact\u00e9rias ben\u00e9ficas, como Lachnospiraceae e Butyrivibrio. Esses dist\u00farbios reduzem a efici\u00eancia da digest\u00e3o de nutrientes e, por fim, afetam a produ\u00e7\u00e3o de leite[\/vc_column_text][image_with_animation image_url=”16853″ image_size=”full” animation_type=”entrance” animation=”None” animation_movement_type=”transform_y” hover_animation=”none” alignment=”” border_radius=”none” box_shadow=”none” image_loading=”default” max_width=”100%” max_width_mobile=”default”][vc_column_text css=”” text_direction=”default”]Figura 1. Produ\u00e7\u00e3o total de \u00e1cidos graxos vol\u00e1teis (TVFA), acetato, propionato e butirato de vacas expostas a n\u00edveis baixos (L; 20,8%) e altos (H; 27,8%) de amido (s); e baixos (L; 0,34 ppm) e altos (H; 3,09 ppm) de DON (d).<\/em>[\/vc_column_text][vc_column_text css=”” text_direction=”default”]\n

2. A dieta \u00e9 importante: Riscos de alto teor de amido<\/h3>\n

O alto n\u00edvel de amido nos TMRs exacerba os efeitos negativos do DON. Essas dietas promovem a acidose ruminal, aumentando o desequil\u00edbrio microbiano e reduzindo a capacidade de desintoxica\u00e7\u00e3o do DON. As dietas com alto teor de amido e contaminadas com DON levaram a um decl\u00ednio acentuado na produ\u00e7\u00e3o de leite e aumentaram o estresse oxidativo em compara\u00e7\u00e3o com as TMRs com baixo teor de amido.<\/p>\n

3. Implica\u00e7\u00f5es para a Sa\u00fade e Preven\u00e7\u00e3o<\/h3>\n

Al\u00e9m das perdas de produ\u00e7\u00e3o, o DON eleva os indicadores de estresse oxidativo (ROS) e os marcadores de inflama\u00e7\u00e3o (TNF-\u03b1, IL-1\u03b2 e IFN-\u03b3). A resposta imunol\u00f3gica das vacas tamb\u00e9m foi afetada negativamente pelo DON, aumentando a IgG e o complemento 4 (C4).<\/p>\n

As estrat\u00e9gias eficazes para atenuar o impacto do DON incluem a otimiza\u00e7\u00e3o da composi\u00e7\u00e3o da ra\u00e7\u00e3o, o monitoramento regular dos n\u00edveis de contamina\u00e7\u00e3o por DON na ra\u00e7\u00e3o e a incorpora\u00e7\u00e3o de um desintoxicante. A manuten\u00e7\u00e3o de uma dieta balanceada, especialmente com baixo teor de amido, \u00e9 essencial para reduzir a gravidade dos efeitos do DON na sa\u00fade do r\u00famen e no bem-estar geral da vaca.[\/vc_column_text][divider line_type=”Full Width Line” line_thickness=”1″ divider_color=”accent-color” custom_height=”20″][vc_column_text css=”” text_direction=”default”]Refer\u00eancias: Dong J., Zhao Z., Wang Z., Li S., Zhang Y., Sun Z., Qin G., Zhang X., Zhao W. Demelash N., Wang T. e Zhen Y. 2024. Impact of deoxynivalenol on rumen function, production, and health of dairy cows: Insights da an\u00e1lise metabol\u00f4mica e de microbiota. Journal of Hazardoud Materials, 465. https:\/\/doi.org\/10.1016\/j.jhazmat.2023.133376<\/em>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"

[vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” top_padding=”2%” constrain_group_4=”yes” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default”…<\/p>\n","protected":false},"author":3,"featured_media":16858,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[],"class_list":{"0":"post-16852","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-myco-news-2"},"_links":{"self":[{"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/posts\/16852","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/comments?post=16852"}],"version-history":[{"count":1,"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/posts\/16852\/revisions"}],"predecessor-version":[{"id":16863,"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/posts\/16852\/revisions\/16863"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/media\/16858"}],"wp:attachment":[{"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/media?parent=16852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/categories?post=16852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mycokingdom.net\/pt-pt\/wp-json\/wp\/v2\/tags?post=16852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}