{"id":2060,"date":"2023-10-09T11:31:20","date_gmt":"2023-10-09T09:31:20","guid":{"rendered":"https:\/\/www.rumexperts.vet\/?post_type=training&#038;p=2060"},"modified":"2024-03-16T09:20:20","modified_gmt":"2024-03-16T08:20:20","slug":"adapter-votre-dose-de-pgf-au-nombre-de-corps-jaunes","status":"publish","type":"training","link":"https:\/\/www.rumexperts.vet\/en\/training\/adapter-votre-dose-de-pgf-au-nombre-de-corps-jaunes","title":{"rendered":"ADAPTER VOTRE DOSE DE PGF AU NOMBRE DE CORPS JAUNES"},"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>REFERENCE\u00a0: Lopez-Gatius F. Presence of multiple corpora lutea affects the luteolytic response to prostaglandin F2\u03b1 in lactating dairy cows. J. Reprod. Dev. 67: 135\u2013139, 2021.<\/p>\n<p>Voil\u00e0 50 ans que la dose lut\u00e9olytique de la PGF2\u03b1 a \u00e9t\u00e9 d\u00e9finie (PGF2\u03b1\u00a0: 25 mg, cloprostenol 500 \u00b5g, fenprostal\u00e8ne 1 mg) pour induire un \u0153strus apr\u00e8s leur injection entre le 5<sup>\u00e8me<\/sup> et le 16<sup>\u00e8me<\/sup> jour du cycle. Pourtant dans le m\u00eame temps la s\u00e9lection a entra\u00een\u00e9 une augmentation de la production laiti\u00e8re et indirectement un changement du catabolisme h\u00e9patique des st\u00e9ro\u00efdes voire pulmonaire de la PGF2\u03b1. On a \u00e9galement observ\u00e9 une augmentation de la pr\u00e9valence des ovulations multiples et de la g\u00e9mellit\u00e9.<\/p>\n<p>L\u2019\u00e9tude concerne 2436 vaches Holstein de 2.9 \u00b1 1.7 lactations, \u00e0 112 \u00b1 73 jours postpartum, produisant par jour 47.4 \u00b1 9.9 kg de lait. Le d\u00e9nombrement des corps jaunes (de diam\u00e8tre &gt; 15 mm) a \u00e9t\u00e9 r\u00e9alis\u00e9 par \u00e9chographie et l\u2019\u0153strus d\u00e9tect\u00e9 au moyen de podom\u00e8tres. Seules les vaches en \u0153strus ont \u00e9t\u00e9 ins\u00e9min\u00e9es.<\/p>\n<p>PRINCIPALES OBSERVATIONS<\/p>\n<p>Les pr\u00e9valences du nombre de corps jaunes\u00a0ont \u00e9t\u00e9 respectivement \u00e9gales \u00e0 : 1 CJ\u00a0: 69,1 %\u00a0et &gt; 1 CJ\u00a0: 30,9 % dont 95,4 %\u00a0: 2 CJ, 4,2 %\u00a0:\u00a0 3 CJ et 0,4 %\u00a0: 4 CJ.<\/p>\n<p>Un \u0153strus a \u00e9t\u00e9 d\u00e9tect\u00e9 chez 62,9 % des vaches et leur\u00a0 % de gestation a \u00e9t\u00e9 de 42,1 % .<\/p>\n<p>Les effets de la dose adapt\u00e9e au nombre de CJ ont \u00e9t\u00e9 hautement significatifs (Voir figure).<\/p>\n<p>EN PRATIQUE<\/p>\n<p>L\u2019injection d\u2019une PGF2\u03b1 ne s\u2019improvise pas. Il convient de v\u00e9rifier, par \u00e9chographie id\u00e9alement, non seulement la pr\u00e9sence d\u2019un CJ de diam\u00e8tre &gt; 15 mm mais \u00e9galement le nombre. L\u2019identification de plus d\u2019un CJ associ\u00e9e \u00e0 une production laiti\u00e8re &gt; 45 kg doit nous inviter \u00e0 multiplier par 1,5 la dose de PGF2\u03b1 habituellement utilis\u00e9e.<\/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=\"447\" title=\"Lopez Gatius 2021 PGF et n CJ\" src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/10\/Lopez-Gatius-2021-PGF-et-n-CJ-scaled.jpg\" data-orig-src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/10\/Lopez-Gatius-2021-PGF-et-n-CJ-800x447.jpg\" alt class=\"lazyload img-responsive wp-image-2062\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271900%27%20height%3D%271062%27%20viewBox%3D%270%200%201900%201062%27%3E%3Crect%20width%3D%271900%27%20height%3D%271062%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/10\/Lopez-Gatius-2021-PGF-et-n-CJ-200x112.jpg 200w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/10\/Lopez-Gatius-2021-PGF-et-n-CJ-400x224.jpg 400w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/10\/Lopez-Gatius-2021-PGF-et-n-CJ-600x335.jpg 600w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/10\/Lopez-Gatius-2021-PGF-et-n-CJ-800x447.jpg 800w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/10\/Lopez-Gatius-2021-PGF-et-n-CJ-1200x671.jpg 1200w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2023\/10\/Lopez-Gatius-2021-PGF-et-n-CJ-scaled.jpg 1900w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 640px) 100vw, 1200px\" \/><\/span><\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":20,"featured_media":2061,"template":"","keyword":[],"theme":[59],"class_list":["post-2060","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\/2060","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\/2061"}],"wp:attachment":[{"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/media?parent=2060"}],"wp:term":[{"taxonomy":"keyword","embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/keyword?post=2060"},{"taxonomy":"theme","embeddable":true,"href":"https:\/\/www.rumexperts.vet\/en\/wp-json\/wp\/v2\/theme?post=2060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}