{"id":2319,"date":"2023-11-29T09:15:46","date_gmt":"2023-11-29T08:15:46","guid":{"rendered":"https:\/\/www.rumexperts.vet\/?post_type=training&#038;p=2319"},"modified":"2024-03-25T10:56:16","modified_gmt":"2024-03-25T09:56:16","slug":"les-ovulations-multiples-chez-la-vache-connaitre-les-consequences","status":"publish","type":"training","link":"https:\/\/www.rumexperts.vet\/en\/training\/les-ovulations-multiples-chez-la-vache-connaitre-les-consequences","title":{"rendered":"Les ovulations multiples chez la vache. Conna\u00eetre les cons\u00e9quences."},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p>La majorit\u00e9 des auteurs s\u2019accordent \u00e0 reconna\u00eetre un effet positif des ovulations multiples sur la fertilit\u00e9 (Tableau 2). A l\u2019inverse, une \u00e9tude rapporte une diminution de la fertilit\u00e9 (37 vs 54 %) surtout lorsque les gestations sont unilat\u00e9rales (29 vs 45 %) (L\u00f3pez-Gatius et al.Theriogenology <strong>2005<\/strong>, 63, 1298\u20131307). Le plus souvent, les ovulations multiples sont associ\u00e9es \u00e0 une augmentation de la mortalit\u00e9 embryonnaire et \u00e0 une plus grande fr\u00e9quence de kystes ovariens (Carthy et al. J. Dairy Sci. <strong>2015<\/strong>, 98, 4095\u20134106).<\/p>\n<p>Chez la vache, la fr\u00e9quence moyenne de la g\u00e9mellit\u00e9 est de 2,5 %. Elle augmente avec le num\u00e9ro de lactation (Figure adapt\u00e9e de Wiltbank et al. J.Dairy Sci, 2000, 83,2998). Les ovulations multiples en augmentent le risque. Leur fr\u00e9quence \u00e9valu\u00e9e sur 12.839 accouchements est de 5,6 %, une fr\u00e9quence de 12,6 % ayant \u00e9t\u00e9 observ\u00e9e lors du constat de gestation (Andreu-V\u00e1zquez et al. Theriogenology <strong>2012<\/strong>, 78, 2061\u20132070). La g\u00e9mellit\u00e9 constitue un facteur de risque de dystocie, de r\u00e9tention placentaire et d\u2019infections ut\u00e9rines, d\u2019infertilit\u00e9 et de r\u00e9duction de la dur\u00e9e de vie productive (Andreu-V\u00e1zquez et al. Theriogenology <strong>2012<\/strong>, 78, 2061\u20132070). Elle multiplie par 2,5 le risque d\u2019interruption de la gestation (Colazo et al. WCDS Adv. Dairy Technol. <strong>2014<\/strong>, 26, 376).<\/p>\n<\/div><div class=\"fusion-image-element \" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"800\" height=\"590\" title=\"MacMillan 2018 frequence ovulations et fertilite\" src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/11\/MacMillan-2018-frequence-ovulations-et-fertilite.png\" data-orig-src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/11\/MacMillan-2018-frequence-ovulations-et-fertilite-800x590.png\" alt class=\"lazyload img-responsive wp-image-2321\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271034%27%20height%3D%27762%27%20viewBox%3D%270%200%201034%20762%27%3E%3Crect%20width%3D%271034%27%20height%3D%27762%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/11\/MacMillan-2018-frequence-ovulations-et-fertilite-200x147.png 200w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/11\/MacMillan-2018-frequence-ovulations-et-fertilite-400x295.png 400w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/11\/MacMillan-2018-frequence-ovulations-et-fertilite-600x442.png 600w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/11\/MacMillan-2018-frequence-ovulations-et-fertilite-800x590.png 800w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/11\/MacMillan-2018-frequence-ovulations-et-fertilite.png 1034w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 640px) 100vw, 800px\" \/><\/span><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":2320,"template":"","keyword":[],"theme":[59],"class_list":["post-2319","training","type-training","status-publish","has-post-thumbnail","hentry","theme-reproduction-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/training\/2319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/training"}],"about":[{"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/types\/training"}],"author":[{"embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/users\/20"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/media\/2320"}],"wp:attachment":[{"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/media?parent=2319"}],"wp:term":[{"taxonomy":"keyword","embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/keyword?post=2319"},{"taxonomy":"theme","embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/theme?post=2319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}