{"id":2841,"date":"2024-03-24T08:35:53","date_gmt":"2024-03-24T07:35:53","guid":{"rendered":"https:\/\/www.rumexperts.vet\/?post_type=training&#038;p=2841"},"modified":"2024-03-24T08:37:16","modified_gmt":"2024-03-24T07:37:16","slug":"comment-evaluer-le-stade-de-gestation-lors-de-labattage-dune-vache-gestante","status":"publish","type":"training","link":"https:\/\/www.rumexperts.vet\/en\/training\/comment-evaluer-le-stade-de-gestation-lors-de-labattage-dune-vache-gestante","title":{"rendered":"Comment \u00e9valuer le stade de gestation lors de l&#8217;abattage d&#8217;une vache gestante ?"},"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: Agerholm\u00a0et\u00a0al. Forensic age assessment of\u00a0late-term bovine fetuses. Acta Veterinaria Scandinavica (2023) 65:27 <a href=\"https:\/\/doi.org\/10.1186\/s13028-023-00691-0\">https:\/\/doi.org\/10.1186\/s13028-023-00691-0<\/a><\/p>\n<p>LE SAVIEZ-VOUS\u00a0?<\/p>\n<ul>\n<li>Selon diff\u00e9rentes \u00e9tudes conduites au si\u00e8cle dernier, 23 \u00e0 63 % des g\u00e9nisses et vaches laiti\u00e8res ou \u00e0 viande abattues \u00e9taient gestantes. Selon une enqu\u00eate europ\u00e9enne (Mellor, D.J. J. Vet. Med. Educ. 2010, 37, 94\u2013102), respectivement 16 et 11 % des femelles laiti\u00e8res et \u00e0 viande sont abattues gestantes. Plus r\u00e9cemment (2019), une \u00e9tude conduite au Danemark sur 837 femelles de 231 troupeaux, 23 % \u00e9taient gestantes. La distribution des stades de gestation \u00e9tait de 28 (1<sup>er<\/sup> tiers), 49 (2<sup>\u00e8me<\/sup> tiers) et 22 % (3<sup>\u00e8me<\/sup> tiers) (Nielsen et al. Animals 2019, 9, 392; doi:10.3390\/ani9070392).<\/li>\n<li>Une \u00e9tude danoise (Krog Ch et al. (2018) PLoS ONE 13\u00a0:11) a analys\u00e9 les caract\u00e9ristiques morphologiques (poids, dimensions, pigmentation, \u00e9ruption des dents, poils\u2026) en fonction du stade de gestation de 274 foetus de race Holstein. Ils ont par ailleurs \u00e9t\u00e9 pes\u00e9s et mesur\u00e9s. Ele a permis de propos\u00e9 une formule d\u2019estimation de l\u2019\u00e2ge (Voir Figures).<\/li>\n<li>La r\u00e9glementation europ\u00e9enne interdit le transport vers l\u2019abattoir de vaches gestantes de plus de 90 % de la dur\u00e9e pr\u00e9vue de la gestation. Il semble donc important de pouvoir d\u00e9terminer le stade de gestation des vaches abattues gestantes.<\/li>\n<\/ul>\n<p>Les auteurs de la pr\u00e9sente \u00e9tude ont caract\u00e9ris\u00e9 la relation existate entre la dur\u00e9e de la gestation et le poids de 2734 nouveaux-n\u00e9s simples de race Holstein dont la date d\u2019ins\u00e9mination \u00e9tait connue. Le poids et l\u2019\u00e9ruption des dents (incisives et canines) a \u00e9galement \u00e9t\u00e9 \u00e9valu\u00e9e sur 54 veaux dans les 12 heures suivant leur naissance et sur 52 veaux n\u00e9s par c\u00e9sarienne. L\u2019\u00e9ruption ou non des dents peut \u00eatre identifi\u00e9e par la pr\u00e9sence d\u2019un son aigu ou mat obtenu en frappant les dents au moyen d\u2019une lame m\u00e9tallique.<\/p>\n<p>LEURS OBSERVATIONS<\/p>\n<p>99 % des gestations avaient une dur\u00e9e de gestation moyenne comprise entre 261 et 290 jours ce qui correspond \u00e0 des valeurs l\u00e9gales pour le transport respectivement \u00e9gales \u00e0 235 et 261 jours (Voir figure).<\/p>\n<p>Le poids m\u00e9dian des veaux a \u00e9t\u00e9 de 42 kgs et compris entre 16 et 63 kgs. Le poids des veaux de sexe m\u00e2le a \u00e9t\u00e9 3 kg en moyenne sup\u00e9rieur \u00e0 celui de veaux de sexe femelle. Le poids des veaux n\u00e9s de primipares a \u00e9t\u00e9 de 2 kg inf\u00e9rieur \u00e0 celui de veaux n\u00e9s de multipares. La corr\u00e9lation entre la dur\u00e9e de la gestation et le poids des f\u0153tus a \u00e9t\u00e9 de 0.27.<\/p>\n<p>Toutes les incisives \u00e9taient sorties chez 50 % des veaux \u00e2g\u00e9s de 241 \u00e0 250 jours. La premi\u00e8re incisive \u00e9tait sortie chez tous les veaux \u00e2g\u00e9s de plus de 236 jours. Les deux secondes incisives \u00e9taient sorties chez tous les veaux \u00e2g\u00e9s de plus de 241 jours. La troisi\u00e8me incisive \u00e9tait sortie chez tous les veaux \u00e2g\u00e9s de 236 \u00e0 281 jours.\u00a0 Aucune canine n\u2019\u00e9tait sortie avant 259 jours de gestation et chez 46 % des veaux apr\u00e8s la naissance.<\/p>\n<p>CONCLUSION<\/p>\n<p>Le poids, l\u2019\u00e9ruption des dents ou la morphologie g\u00e9n\u00e9rale u veau ne constituent pas des param\u00e8tres suffisants pour d\u00e9terminer si l\u2019abattage a \u00e9t\u00e9 r\u00e9alis\u00e9 au-del\u00e0 du seuil de 90 % de la dur\u00e9e de la gestation.<\/p>\n<p>Et si nous prenions l\u2019habitude de v\u00e9rifier l\u2019absence de gestation chez une vache r\u00e9form\u00e9e et de convaincre les \u00e9leveurs de ne plus mettre \u00e0 la reproduction les animaux pour lesquels une d\u00e9cision de r\u00e9forme aurait \u00e9t\u00e9 prise.<\/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=\"1900\" height=\"1062\" title=\"Agerholm 2023 dur\u00e9e de gestation et poids foetal\" src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Agerholm-2023-duree-de-gestation-et-poids-foetal-scaled.jpg\" data-orig-src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Agerholm-2023-duree-de-gestation-et-poids-foetal-scaled.jpg\" alt class=\"lazyload img-responsive wp-image-2843\" 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\/2024\/03\/Agerholm-2023-duree-de-gestation-et-poids-foetal-200x112.jpg 200w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Agerholm-2023-duree-de-gestation-et-poids-foetal-400x224.jpg 400w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Agerholm-2023-duree-de-gestation-et-poids-foetal-600x335.jpg 600w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Agerholm-2023-duree-de-gestation-et-poids-foetal-800x447.jpg 800w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Agerholm-2023-duree-de-gestation-et-poids-foetal-1200x671.jpg 1200w, 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src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Krog-2018-Morphologie-et-poids-foetal-Holstein-scaled.jpg\" data-orig-src=\"https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Krog-2018-Morphologie-et-poids-foetal-Holstein-scaled.jpg\" alt class=\"lazyload img-responsive wp-image-2845\" 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\/2024\/03\/Krog-2018-Morphologie-et-poids-foetal-Holstein-200x112.jpg 200w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Krog-2018-Morphologie-et-poids-foetal-Holstein-400x224.jpg 400w, https:\/\/www.rumexperts.vet\/wp-content\/uploads\/2024\/03\/Krog-2018-Morphologie-et-poids-foetal-Holstein-600x335.jpg 600w, 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