{"id":2056,"date":"2023-10-09T11:31:54","date_gmt":"2023-10-09T09:31:54","guid":{"rendered":"https:\/\/www.rumexperts.vet\/?post_type=training&p=2056"},"modified":"2024-03-16T09:19:25","modified_gmt":"2024-03-16T08:19:25","slug":"induire-la-parturition-de-la-vache-pourquoi-quand-avec-quoi","status":"publish","type":"training","link":"https:\/\/www.rumexperts.vet\/en\/training\/induire-la-parturition-de-la-vache-pourquoi-quand-avec-quoi","title":{"rendered":"INDUIRE LA PARTURITION DE LA VACHE : POURQUOI ? QUAND ? AVEC QUOI ?"},"content":{"rendered":"

POURQUOI\u00a0: indications\u00a0m\u00e9dicales le plus souvent \u00e0 savoir\u00a0: hydropisie, momifications, mac\u00e9rations, fractures, parapl\u00e9gies, p\u00e9ritonites, rupture du tendon prepubien, tox\u00e9mie (brebis).<\/p>\n

QUAND\u00a0: le part sera induit au plus t\u00f4t (autant que possible) apr\u00e8s le 270\u00e8me<\/sup> jour de gestation\u00a0: \u00e0 v\u00e9rifier donc les dur\u00e9es de gestation diff\u00e9rentes selon les races.<\/p>\n

EFFETS SECONDAIRES\u00a0: L\u2019induction du part s\u2019accompagne d\u2019une augmentation du risque de r\u00e9tention placentaire et de n\u00e9omortalit\u00e9. Les glucocortico\u00efdes d\u00e9priment l\u2019immunit\u00e9 g\u00e9n\u00e9rale voire colostrale.<\/p>\n

AVEC QUOI\u00a0: Glucocortico\u00efdes ou prostaglandines, l\u2019ocytocine n\u2019a pas d\u2019effet chez la vache<\/p>\n

    \n
  • Glucocortico\u00efdes : leurs effets impliquent la pr\u00e9sence d\u2019un veau vivant. On utilisera donc la dexamethasone (glucocortico\u00efde \u00e0 longue dur\u00e9e d\u2019action) \u00e0 la dose de 0.04 mg\/Kg. Il est important d\u2019adapter la dose au poids de l\u2019animal. Petit rappel\u00a0: la dexamethasone bloque le retrocontr\u00f4le du cortisol f\u0153tal sur l\u2019ACTH. La concentration de l\u2019ACTH augmente. Une fois la dexam\u00e9thasone \u00e9limin\u00e9e, ce blocage est lev\u00e9 et l\u2019ACTH induit une ib\u00e9ration massive de cortisol f\u0153tal qui d\u00e9clenche la cascade hormonale inductrice de la parturition. Le v\u00ealage s\u2019observe 40 \u00e0 70 heures apr\u00e8s l\u2019injection.<\/li>\n
  • Prostaglandines (PGF2\u03b1)\u00a0: effet lut\u00e9olytique bien plus qu\u2019ocytocique. Elle est donc active chez la vache et la ch\u00e8vre esp\u00e8ces chez qui la progest\u00e9rone est d\u2019origine placentaire et lut\u00e9ale, chez la brebis, la progest\u00e9rone est bien davantage d\u2019origine placentaire. La PGF2\u03b1 est active que le f\u0153tus soit vivant ou mort. Son injection (25 mg de PGF2\u03b1 naturelles ou 500 mcg de cloprostenol) peut \u00eatre associ\u00e9e \u00e0 celle de la dexam\u00e9thasone. Le v\u00ealage s\u2019observe dans les 36 heures en moyenne.<\/li>\n<\/ul>\n<\/div>
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