{"id":1597,"date":"2023-09-27T20:32:55","date_gmt":"2023-09-27T20:32:55","guid":{"rendered":"https:\/estres-en-vaques-de-llet\/"},"modified":"2025-08-27T10:37:21","modified_gmt":"2025-08-27T10:37:21","slug":"estres-en-vaques-de-llet","status":"publish","type":"post","link":"https:\/\/tech-complex.com\/ca\/estres-en-vaques-de-llet\/","title":{"rendered":"Estr\u00e8s en vaques de llet"},"content":{"rendered":"<div data-breakout=\"normal\">\n<p id=\"viewer-foo\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">Al llarg de la vida, la vaca de llet ha de fer front a diferents factors estressants: f\u00edsics, fisiol\u00f2gics i psicol\u00f2gics. Limitar limpacte de lestr\u00e8s i promoure el benestar de les vaques lleteres \u00e9s de vital import\u00e0ncia. <\/span><\/p>\n<\/div>\n<div data-hook=\"rcv-block2\">Els efectes de l&#8217;estr\u00e8s repercuteixen directament en la quantitat i qualitat de la llet produ\u00efda: inhibici\u00f3 de l&#8217;ejecci\u00f3, reducci\u00f3 de la s\u00edntesi i fins i tot la modificaci\u00f3 de la composici\u00f3 de la llet.<\/div>\n<div data-hook=\"rcv-block3\"><\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-4s42r\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">L&#8217;estr\u00e8s indueix canvis fisiol\u00f2gics i debilita la immunitat, cosa que augmenta la sensibilitat a les malalties.<\/div>\n<\/div>\n<div data-hook=\"rcv-block5\"><\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-55ei8\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">Les vaques estressades mostren una baixa fertilitat impactant indirectament en par\u00e0metres productius com ara l&#8217;interval entre parts.<\/div>\n<\/div>\n<div data-hook=\"rcv-block7\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1311\" src=\"https:\/\/tech-complex.com\/wp-content\/uploads\/2025\/01\/62e293_4bb7f0e97d63408caf4def3aa8bc86c8mv2.png\" alt=\"\" width=\"318\" height=\"343\" srcset=\"https:\/\/tech-complex.com\/wp-content\/uploads\/2025\/01\/62e293_4bb7f0e97d63408caf4def3aa8bc86c8mv2.png 318w, https:\/\/tech-complex.com\/wp-content\/uploads\/2025\/01\/62e293_4bb7f0e97d63408caf4def3aa8bc86c8mv2-278x300.png 278w\" sizes=\"(max-width: 318px) 100vw, 318px\" \/><\/div>\n<div data-breakout=\"normal\">\n<h2 id=\"viewer-apbkf\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">Introducci\u00f3 a un grup: estr\u00e8s psicosocial<\/h2>\n<\/div>\n<div data-hook=\"rcv-block10\">Com es pot superar la p\u00e8rdua de producci\u00f3 de llet despr\u00e9s d&#8217;una reagrupaci\u00f3 en vaca de llet?<\/div>\n<div data-hook=\"rcv-block12\">El reagrupament social no \u00e9s un esdeveniment insignificant per a les vaques lleteres.<\/div>\n<div data-hook=\"rcv-block13\"><\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-75k15\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">Sobretot en explotacions grans, una vaca lletera canvia de grup sovint per fer lots similars durant una lact\u00e0ncia. Aix\u00f2, per\u00f2, desestabilitza la din\u00e0mica social i perjudica comportaments productius com el descans, l&#8217;alimentaci\u00f3 i la rumia. La producci\u00f3 de llet tamb\u00e9 s&#8217;altera.  <\/div>\n<\/div>\n<div data-hook=\"rcv-block15\"><\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-b6f4s\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">Com superar la p\u00e8rdua de producci\u00f3 de llet despr\u00e9s del reagrupament?<\/div>\n<\/div>\n<div data-breakout=\"normal\">\n<ol class=\"-DEiq N-MPH\">\n<li class=\"Vva7T\" dir=\"auto\" aria-level=\"1\">\n<p id=\"viewer-5noip\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"\"><span class=\"v0IdQ WLLGL\">\u00das de Veig, una soluci\u00f3 sensorial, per gestionar l&#8217;impacte de l&#8217;estr\u00e8s<\/span><\/p>\n<\/li>\n<li class=\"Vva7T\" dir=\"auto\" aria-level=\"1\">\n<p id=\"viewer-8hse7\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"\"><span class=\"v0IdQ WLLGL\">Adaptaci\u00f3 de la gesti\u00f3 de lexplotaci\u00f3<\/span><\/p>\n<\/li>\n<li class=\"Vva7T\" dir=\"auto\" aria-level=\"1\">\n<p id=\"viewer-cpl1e\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"\"><span class=\"v0IdQ WLLGL\">Introduir vaques per parelles<\/span><\/p>\n<\/li>\n<\/ol>\n<\/div>\n<div data-breakout=\"normal\">\n<p id=\"viewer-4ft64\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">Els 3 temes s\u00f3n clau per contrarestar la p\u00e8rdua de llet despr\u00e9s d&#8217;un canvi de lot!  <\/span><\/p>\n<\/div>\n<h2 data-hook=\"rcv-block20\">Comportament i productivitat<\/h2>\n<p data-hook=\"rcv-block20\">A les vaques de llet el comportament i la productivitat estan vinculats.<\/p>\n<div data-breakout=\"normal\">\n<p id=\"viewer-ah9qh\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">Per a una vaca una hora de descans addicional suposa augmentar la producci\u00f3 de llet en 0,9-1,6 litres de llet!<\/span><\/p>\n<\/div>\n<div data-breakout=\"normal\">\n<p id=\"viewer-24q6k\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">El comportament de les vaques diu molt sobre el seu nivell de benestar, que \u00e9s imprescindible per al rendiment. Les vaques lleteres necessiten realitzar una llista d&#8217;activitats durant el dia per al benestar propi i tamb\u00e9 per a la producci\u00f3 de llet.<\/span><\/p>\n<\/div>\n<div data-breakout=\"normal\">\n<p id=\"viewer-7pkad\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">S\u201fha estudiat una correlaci\u00f3 directa entre el temps de descans d\u201funa vaca lletera i la productivitat: l\u201f\u00fas de VeO millora el seu benestar i aix\u00ed expressar una millor producci\u00f3.<\/span><\/p>\n<\/div>\n<div data-breakout=\"normal\">\n<h2 id=\"viewer-acih3\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">Robot de munyida<\/span><\/h2>\n<\/div>\n<div data-hook=\"rcv-block31\">El sistema de munyida autom\u00e0tic constitueix una forma de millorar la productivitat de les explotacions lleteres. No obstant aix\u00f2, l&#8217;efici\u00e8ncia i l&#8217;\u00fas del temps de munyida robotitzada estan fortament influenciats pel comportament de les vaques. <\/div>\n<div data-hook=\"rcv-block32\"><\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-9lrli\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">De fet, la utilitzaci\u00f3 del robot requereix que les vaques estiguin m\u00e9s automotivades en comparaci\u00f3 de la sala de munyida convencional.<\/div>\n<\/div>\n<div data-hook=\"rcv-block34\"><\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-1u5se\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">Alguns estudis han trobat nivells m\u00e9s alts de comportaments agressius, com trepitjades i puntades de peu, amb l&#8217;\u00fas del robot que a la sala de munyida convencional.<\/div>\n<\/div>\n<div data-breakout=\"normal\">\n<p id=\"viewer-etvjs\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">Per tant, el comportament de les vaques representa una de les preocupacions m\u00e9s importants sobre les quals podem actuar per millorar la popularitat i la rendibilitat del robot de munyida.<\/span><\/p>\n<\/div>\n<div data-breakout=\"normal\">\n<p id=\"viewer-cdv1\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">El repte rau en augmentar el comportament de munyida volunt\u00e0ria per augmentar la freq\u00fc\u00e8ncia de munyida, aix\u00ed s&#8217;observa un augment de la producci\u00f3 de llet amb 2, 3 o 4 munyides en comparaci\u00f3 amb la munyida un cop al dia amb vaques lleteres Holstein (Figura 1).<\/span><\/p>\n<div id=\"attachment_1309\" style=\"width: 1088px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1309\" class=\"size-full wp-image-1309\" src=\"https:\/\/tech-complex.com\/wp-content\/uploads\/2025\/01\/62e293_ef165ade6f15404f9fda0a22ae17eefcmv2.png\" alt=\"\" width=\"1078\" height=\"758\" srcset=\"https:\/\/tech-complex.com\/wp-content\/uploads\/2025\/01\/62e293_ef165ade6f15404f9fda0a22ae17eefcmv2.png 1078w, https:\/\/tech-complex.com\/wp-content\/uploads\/2025\/01\/62e293_ef165ade6f15404f9fda0a22ae17eefcmv2-980x689.png 980w, https:\/\/tech-complex.com\/wp-content\/uploads\/2025\/01\/62e293_ef165ade6f15404f9fda0a22ae17eefcmv2-480x338.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1078px, 100vw\" \/><p id=\"caption-attachment-1309\" class=\"wp-caption-text\">Figura 1: Efecte de la freq\u00fc\u00e8ncia de munyida en la producci\u00f3 mitjana de llet utilitzant un sistema de munyida autom\u00e0tica (Mayakrishnan Vijayakumar et al 2017)<\/p><\/div>\n<div data-breakout=\"normal\">\n<p id=\"viewer-3p1no\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">De la mateixa manera, altres autors van confirmar que l&#8217;augment de la freq\u00fc\u00e8ncia de munyida de 2x a 3x va resultar en un augment del 10% al 30% en la producci\u00f3 de llet.<\/span><\/p>\n<\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-2nrdp\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">\n<div data-breakout=\"normal\">\n<p id=\"viewer-rq3r\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\"><span class=\"v0IdQ WLLGL\">Aleshores, la motivaci\u00f3 de la vaca per entrar al lloc de munyida representa la principal difer\u00e8ncia entre els sistemes de munyida amb robot i convencionals. Al robot, les vaques entren volunt\u00e0riament al lloc de munyida i s\u00f3n munyides durant tot el dia sense procediments de manipulaci\u00f3. <\/span><\/p>\n<\/div>\n<div data-hook=\"rcv-block47\">Tot i aix\u00f2, encara que algunes vaques mostrin una motivaci\u00f3 evident per visitar el robot, \u00e9s possible que no ho facin per falta d&#8217;un h\u00e0bit establert.<\/div>\n<div data-hook=\"rcv-block49\"><\/div>\n<div data-hook=\"rcv-block49\">El descobriment i aprenentatge del robot \u00e9s un per\u00edode estressant per a les vaques: ple de novetats, tamb\u00e9 bregant amb la jerarquia dins del grup per accedir al robot de munyida.<\/div>\n<div data-hook=\"rcv-block50\"><\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-fk5hq\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">Entrenar les vaques per fer servir el robot i ajudar-les a superar la situaci\u00f3 d&#8217;estr\u00e8s \u00e9s crucial ja que aquest sistema de munyida dep\u00e8n de visites volunt\u00e0ries.<\/div>\n<\/div>\n<div data-hook=\"rcv-block52\"><\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-351i5\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">Aix\u00f2 \u00e9s especialment cert en el cas de les vaques prim\u00edpares que entren al grup de lact\u00e0ncia per primera vegada; aquest estr\u00e8s psicosocial les fa menys receptives a laprenentatge. Aix\u00ed, doncs, el mode d&#8217;acci\u00f3 de VeO pot ajudar a posar els animals en un estat de calma i accelerar el proc\u00e9s d&#8217;aprenentatge. <\/div>\n<\/div>\n<div data-hook=\"rcv-block54\"><\/div>\n<div data-breakout=\"normal\">\n<div id=\"viewer-12gir\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">La rendibilitat del sistema de munyida automatitzada dep\u00e8n de les visites volunt\u00e0ries, \u00e9s a dir, del nombre de munyides di\u00e0ries i de la velocitat de munyida. Gr\u00e0cies als seus efectes positius sobre el comportament de les vaques lleteres, els beneficis de VeO es poden observar a dos nivells principals: <\/div>\n<\/div>\n<div data-breakout=\"normal\">\n<ul class=\"J-dxb N-MPH\">\n<li class=\"Vva7T\" dir=\"auto\" aria-level=\"1\">\n<p id=\"viewer-1ose0\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"\"><span class=\"v0IdQ WLLGL\">VeO redueix els comportaments competitius\/agressius, cosa que posa en relleu el seu potencial per millorar la flu\u00efdesa de la munyida i, per tant, la freq\u00fc\u00e8ncia de munyida.<\/span><\/p>\n<\/li>\n<li class=\"Vva7T\" dir=\"auto\" aria-level=\"1\">\n<p id=\"viewer-2vqsp\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"\"><span class=\"v0IdQ WLLGL\">VeO influeix positivament en comportaments productius com ara el descans, la rumia i el temps d&#8217;alimentaci\u00f3. Per tant, els animals poden expressar millor tot el seu potencial. <\/span><\/p>\n<\/li>\n<\/ul>\n<\/div>\n<div data-breakout=\"normal\">\n<h3 id=\"viewer-722bd\" class=\"aPd84 JACe0 WLLGL J02j7\" dir=\"auto\">Refer\u00e8ncies<\/h3>\n<\/div>\n<div data-hook=\"rcv-block60\"><em>C Johnston, J. D. (2018). Comunicaci\u00f3n breve: Asociaciones del comportamiento alimentario y la producci\u00f3n de leche en vacas lecheras.  101(4).<\/em><\/div>\n<div data-hook=\"rcv-block62\"><em>Felip H. P\u00e0dua, KM (2022). Impact de dietary citrus extracte en el behavior i producci\u00f3 de lactating dairy cows following regrouping : a preliminary study. Universitat de Guelph, Departament de Bioci\u00e8ncies Animals, Guelph.  <\/em><\/div>\n<div data-hook=\"rcv-block64\"><em>Gomez A., NC (2010, desembre 01). Pressupost de temps del bestiar lleter lactant en ramats comercials d&#8217;estabulaci\u00f3 lliure. Revista de Ci\u00e8ncies Lleteres, 93.  <\/em><\/div>\n<div data-hook=\"rcv-block66\"><em>Holloway L, BC (2014). Tornar a capturar la vida bovina: Robot-cow relationships, freedom and control in dairy farming. Revista d&#8217;Estudis Rurals, 33, 131-140.  <\/em><\/div>\n<div data-hook=\"rcv-block68\"><em>Jan Broucek, PT (2015). Adaptabilitat de les vaques lleteres a la munyida robotitzada : una revisi\u00f3. Centre Nacional d&#8217;Agricultura i Alimentaci\u00f3, Nitra.  <\/em><\/div>\n<div data-hook=\"rcv-block70\"><em>Laura Solano, CH (2022). Comportament del temps de munyida de vaques lleteres en un sistema de munyida automatitzat de flux lliure. Revista de Ci\u00e8ncia Lletera.  <\/em><\/div>\n<div data-hook=\"rcv-block72\"><em>Mayakrishnan Vijayakumar, JH (2017). L&#8217;efecte del nombre de lact\u00e0ncia, l&#8217;etapa, la durada i la freq\u00fc\u00e8ncia de munyida en la producci\u00f3 de llet en vaques lleteres Holstein coreanes utilitzant el sistema de munyida autom\u00e0tic. <\/em><\/div>\n<div data-hook=\"rcv-block74\"><em>Nixon M, BJ (2009). Par\u00e0metres gen\u00e8tics de la freq\u00fc\u00e8ncia de munyida i trets de producci\u00f3 de llet a Holsteins canadencs munyides per un sistema de munyida automatitzat. Journal of Dairy Science, 92, 3422-3430.  <\/em><\/div>\n<div data-hook=\"rcv-block76\"><em>Stelwagen, K. (2001). Efecte de la freq\u00fc\u00e8ncia de munyida sobre el funcionament mamari i la forma de la corba de lactaci\u00f3. Centre de recerca Ruakura, Hamilton.  <\/em><\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Al llarg de la vida, la vaca de llet ha de fer front a diferents factors estressants: f\u00edsics, fisiol\u00f2gics i psicol\u00f2gics. Limitar limpacte de lestr\u00e8s i promoure el benestar de les vaques lleteres \u00e9s de vital import\u00e0ncia. Els efectes de l&#8217;estr\u00e8s repercuteixen directament en la quantitat i qualitat de la llet produ\u00efda: inhibici\u00f3 de l&#8217;ejecci\u00f3, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1308,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[150],"tags":[],"class_list":["post-1597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-remugants"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Estr\u00e8s en vaques de llet - TECH-COMPLEX<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tech-complex.com\/ca\/estres-en-vaques-de-llet\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Estr\u00e8s en vaques de llet - TECH-COMPLEX\" \/>\n<meta property=\"og:description\" content=\"Al llarg de la vida, la vaca de llet ha de fer front a diferents factors estressants: f\u00edsics, fisiol\u00f2gics i psicol\u00f2gics. Limitar limpacte de lestr\u00e8s i promoure el benestar de les vaques lleteres \u00e9s de vital import\u00e0ncia. 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