{"id":56712,"date":"2019-05-07T22:00:21","date_gmt":"2019-05-07T22:00:21","guid":{"rendered":"https:\/\/www.zinpro.com\/performance-trace-minerals-improve-in-vitro-fertilization-success\/"},"modified":"2024-03-21T17:56:28","modified_gmt":"2024-03-21T22:56:28","slug":"performance-trace-minerals-improve-in-vitro-fertilization-success","status":"publish","type":"post","link":"https:\/\/www.zinpro.com\/fr\/resource-center\/blog\/performance-trace-minerals-improve-in-vitro-fertilization-success\/","title":{"rendered":"Les oligo-\u00e9l\u00e9ments de performance am\u00e9liorent le succ\u00e8s de la f\u00e9condation in vitro"},"content":{"rendered":"

La production d'embryons par f\u00e9condation in vitro (FIV) est de plus en plus courante dans l'\u00e9levage bovin et encore plus dans l'\u00e9levage laitier. La f\u00e9condation in vitro consiste \u00e0 pr\u00e9lever des ovocytes (\u0153ufs non f\u00e9cond\u00e9s) sur une vache et \u00e0 les f\u00e9conder dans une bo\u00eete de P\u00e9tri. Apr\u00e8s avoir pass\u00e9 sept jours dans un incubateur, les embryons sont \u00e9valu\u00e9s pour leur qualit\u00e9. Les embryons de haute qualit\u00e9 peuvent \u00eatre transf\u00e9r\u00e9s imm\u00e9diatement dans des vaches receveuses qui porteront la grossesse ou les embryons peuvent \u00eatre congel\u00e9s pour \u00eatre transf\u00e9r\u00e9s plus tard \u00e0 des receveuses.<\/p>\n\n\n\n

La production et le transfert d'embryons bovins de FIV ont plus que tripl\u00e9 au cours des 15 derni\u00e8res ann\u00e9es. L'International Embryo Technology Society rapporte qu'en 2018, on estime \u00e0 750 000 le nombre d'embryons bovins produits par FIV, contre 406 000 embryons in vivo.<\/p>\n\n\n\n

Dans une exploitation bovine, on s'attend \u00e0 ce que les vaches donnent naissance \u00e0 des veaux au cours de l'ann\u00e9e civile. La f\u00e9condation in vitro est un outil puissant, car elle nous donne la possibilit\u00e9 de pr\u00e9lever des ovocytes sur les vaches sans interrompre leur calendrier de reproduction. Les producteurs peuvent pr\u00e9lever des ovocytes sur les vaches m\u00eame si elles sont enceintes, jusqu'\u00e0 ce que le f\u0153tus et le placenta s'installent sur le bassin et que les ovaires ne soient plus accessibles. Les \u00e9leveurs de bovins qui utilisent la f\u00e9condation in vitro ont la possibilit\u00e9 de produire plus de descendants \u00e0 partir de femelles de valeur (vaches libres, vaches gestantes, g\u00e9nisses de remplacement) dans leur troupeau et dans un laps de temps plus court.<\/p>\n\n\n\n

En outre, la f\u00e9condation in vitro peut maximiser l'utilisation de semence de valeur (rare, sex\u00e9e, co\u00fbteuse). Une unit\u00e9 de sperme peut \u00eatre appliqu\u00e9e aux ovocytes de plusieurs donneurs, ou le sperme de plusieurs taureaux diff\u00e9rents peut \u00eatre utilis\u00e9 pour fertiliser un groupe d'ovocytes pr\u00e9lev\u00e9s sur une femelle d'\u00e9lite.<\/p>\n\n\n\n

La f\u00e9condation in vitro nous permet d'augmenter la production de g\u00e8nes de grande valeur qui produisent de la viande de meilleure qualit\u00e9 ou assurent une production laiti\u00e8re sup\u00e9rieure, am\u00e9liorant ainsi la durabilit\u00e9.<\/p>\n\n\n\n

R\u00e9duire les pertes embryonnaires gr\u00e2ce \u00e0 une meilleure alimentation des vaches de boucherie<\/h3>\n\n\n\n

L'un des principaux d\u00e9fis auxquels sont confront\u00e9s les \u00e9leveurs de bovins de boucherie en mati\u00e8re de reproduction est que 70% de toutes les pertes de gestation se produisent au cours des 45 premiers jours de gestation. Tout ce que les producteurs peuvent faire pour r\u00e9duire la perte embryonnaire pendant cette p\u00e9riode aura un impact majeur sur la r\u00e9ussite globale de la gestation.<\/p>\n\n\n\n

Un autre d\u00e9fi auquel sont confront\u00e9s les producteurs est que la reproduction des bovins de boucherie est la priorit\u00e9 la plus basse en termes d'allocation des ressources nutritionnelles. L'entretien est le plus important, l'immunit\u00e9 et la croissance sont les priorit\u00e9s suivantes. La reproduction est la derni\u00e8re priorit\u00e9 en termes d'\u00e9nergie et de ressources nutritionnelles. Chaque fois qu'une vache de boucherie a un mauvais \u00e9tat nutritionnel ou qu'elle a besoin de nutriments et d'\u00e9nergie pour faire face au stress ou \u00e0 un d\u00e9fi immunitaire, la reproduction sera la premi\u00e8re chose sacrifi\u00e9e afin de r\u00e9pondre aux exigences des autres priorit\u00e9s biologiques.<\/p>\n\n\n\n

Dans le cas des g\u00e9nisses de remplacement et des jeunes vaches, ces femelles se reproduisent tout en continuant \u00e0 atteindre leur taille adulte, \u00e0 allaiter et \u00e0 \u00e9lever leurs veaux. Il est important que les producteurs de viande bovine reconnaissent qu'une alimentation optimale est essentielle pour des performances reproductives optimales.<\/p>\n\n\n\n

Am\u00e9liorer la production d'ovocytes et d'embryons gr\u00e2ce aux oligo-\u00e9l\u00e9ments de performance<\/h3>\n\n\n\n

Une \u00e9tude men\u00e9e par Zinpro\u00ae au East Tennessee AgResearch and Education Center (ETREC) \u00e0 Alcoa, Tennessee, a \u00e9valu\u00e9 l'impact des oligo-\u00e9l\u00e9ments sur la production d'embryons in vitro chez des vaches de boucherie en lactation. Tout au long de l'\u00e9tude, les vaches ont brout\u00e9 des p\u00e2turages de f\u00e9tuque et de tr\u00e8fle rouge. Il s'agit de la premi\u00e8re \u00e9tude de recherche de l'industrie \u00e0 analyser l'impact des oligo-\u00e9l\u00e9ments de performance, tels que la f\u00e9tuque et le tr\u00e8fle rouge. Min\u00e9raux de Performance Zinpro\u00ae<\/a>sur la production d'embryons par FIV.<\/p>\n\n\n\n

68 vaches en post-partum ont \u00e9t\u00e9 class\u00e9es en fonction de leur poids, de leur indice d'\u00e9tat corporel et de leur parit\u00e9 avant d'\u00eatre assign\u00e9es de mani\u00e8re al\u00e9atoire \u00e0 un r\u00e9gime Zinpro\u00e2 Availa\u00e2 Plus ou \u00e0 un r\u00e9gime de contr\u00f4le :<\/p>\n\n\n\n

- Zinpro Availa Plus<\/strong>: Les vaches de boucherie ont \u00e9t\u00e9 suppl\u00e9ment\u00e9es avec Zinpro Availa Plus<\/a> Formule d'oligo-\u00e9l\u00e9ments performante compos\u00e9e de zinc, de mangan\u00e8se, de cuivre et de cobalt provenant de sources Zinpro, ainsi que d'iodure de potassium, administr\u00e9e dans le cadre d'un compl\u00e9ment complet \u00e0 volont\u00e9.<\/p>\n\n\n\n

- Contr\u00f4le<\/strong>: La suppl\u00e9mentation comprenait des formulations similaires \u00e0 celles du groupe de traitement, mais \u00e0 partir de sources inorganiques.<\/p>\n\n\n\n

Trente jours apr\u00e8s le d\u00e9but de leur traitement, les vaches ont \u00e9t\u00e9 ins\u00e9min\u00e9es artificiellement afin de respecter leur calendrier de reproduction normal. Les diagnostics de gestation ont \u00e9t\u00e9 effectu\u00e9s le 58e jour et les vaches non gestantes ont \u00e9t\u00e9 retir\u00e9es de l'\u00e9tude afin d'\u00e9liminer la gestation en tant que variable. \u00c0 ce moment-l\u00e0, les vaches nourries avec Zinpro Availa Plus pr\u00e9sentaient un taux de gestation de 64,7%, contre seulement 52,9% pour les vaches nourries avec des oligo-\u00e9l\u00e9ments inorganiques. Apr\u00e8s le diagnostic de gestation, les 38 femelles gestantes (20 Zinpro Availa Plus, 18 t\u00e9moins) qui sont rest\u00e9es dans l'\u00e9tude ont \u00e9t\u00e9 r\u00e9parties dans 5 p\u00e2turages par traitement (10 p\u00e2turages au total). Les p\u00e2turages ont continu\u00e9 \u00e0 recevoir leurs traitements respectifs.<\/p>\n\n\n\n

Les jours 82 et 97, l'\u00e9quipe de recherche a proc\u00e9d\u00e9 \u00e0 un pr\u00e9l\u00e8vement d'ovocytes \u00e0 l'aide d'ultrasons. Afin d'\u00e9valuer le d\u00e9veloppement naturel des follicules, l'hormone folliculo-stimulante n'a pas \u00e9t\u00e9 utilis\u00e9e dans cette \u00e9tude. Les ovocytes cultivables ont \u00e9t\u00e9 f\u00e9cond\u00e9s et r\u00e9\u00e9valu\u00e9s huit jours plus tard afin d'analyser l'impact pr\u00e9coce de la nutrition en oligo-\u00e9l\u00e9ments sur la production d'embryons dans le cadre d'une FIV. L'analyse statistique a pris en compte le nombre de vaches par p\u00e2turage.<\/p>\n\n\n\n

L'\u00e9tude a r\u00e9v\u00e9l\u00e9 que Zinpro Availa Plus avait un impact positif sur la reproduction des bovins de boucherie au cours des huit premiers jours, ce qui repr\u00e9sente le d\u00e9but du premier mois et demi de grossesse, p\u00e9riode cruciale o\u00f9 70% des pertes embryonnaires se produisent. Les vaches nourries avec Zinpro Availa Plus \u00e9taient 43% plus susceptibles de produire un ovocyte plus cultivable et 75% plus susceptibles de produire un embryon pouvant \u00eatre transf\u00e9r\u00e9 \u00e0 une receveuse, par rapport aux vaches nourries avec des oligo-\u00e9l\u00e9ments inorganiques.<\/p>\n\n\n\n

Les vaches \u00e0 viande nourries au Zinpro Availa Plus avec le r\u00e9gime de traitement ont \u00e9galement montr\u00e9 une am\u00e9lioration de l'efficacit\u00e9 de la reproduction. Les vaches nourries avec des oligo-\u00e9l\u00e9ments inorganiques devaient produire plus de deux fois plus d'ovocytes cultivables pour g\u00e9n\u00e9rer un embryon transf\u00e9rable de haute qualit\u00e9.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Am\u00e9liorer les performances \u00e0 vie avant la conception<\/h3>\n\n\n\n

Lorsque les producteurs investissent des ressources dans la technologie de reproduction, en choisissant la bonne g\u00e9n\u00e9tique et en s\u00e9lectionnant une semence de haute qualit\u00e9, il est \u00e9galement important d'investir dans les oligo-\u00e9l\u00e9ments de performance. Vous ne participeriez pas \u00e0 une course avec un v\u00e9hicule de haute performance en utilisant de l'essence standard, alors pourquoi prendriez-vous vos vaches les plus performantes et les nourririez-vous avec des oligo-\u00e9l\u00e9ments inorganiques et peu performants ?<\/p>\n\n\n\n

Compl\u00e9ter l'alimentation des vaches de boucherie avec Zinpro Availa Plus<\/a> augmente l'efficacit\u00e9 de la production d'embryons pour la FIV et am\u00e9liore les performances tout au long de l'ann\u00e9e. <\/p>\n\n\n\n

T\u00e9l\u00e9chargez ce r\u00e9sum\u00e9 de recherche pour en savoir plus sur la fa\u00e7on dont Min\u00e9raux de Performance Zinpro<\/a> aident \u00e0 produire des ovocytes de meilleure qualit\u00e9 et des embryons plus faciles \u00e0 cultiver dans le cadre de la f\u00e9condation in vitro. Pour en savoir plus sur l'int\u00e9gration de Zinpro Availa Plus dans votre plan de nutrition pour bovins de boucherie, contactez votre repr\u00e9sentant Zinpro d\u00e8s aujourd'hui.<\/a><\/p>","protected":false},"excerpt":{"rendered":"

La f\u00e9condation in vitro est de plus en plus utilis\u00e9e dans l'industrie bovine. L'un des principaux d\u00e9fis de la reproduction des bovins de boucherie et de la f\u00e9condation in vitro est que 70% de toutes les pertes de grossesse se produisent au cours des 45 premiers jours de la gestation. Les vaches donneuses nourries avec des oligo-\u00e9l\u00e9ments de performance ont 75% plus de chances de produire un embryon qui peut \u00eatre transf\u00e9r\u00e9 \u00e0 une receveuse que les vaches nourries avec des oligo-\u00e9l\u00e9ments inorganiques, ce qui augmente l'efficacit\u00e9 de la production d'embryons pour la f\u00e9condation in vitro. Pour en savoir plus.<\/p>","protected":false},"author":98,"featured_media":56714,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_tec_requires_first_save":true,"_eb_attr":"","_uag_custom_page_level_css":"","_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false,"_tribe_blocks_recurrence_rules":"","_tribe_blocks_recurrence_description":"","_tribe_blocks_recurrence_exclusions":"","_ecp_custom_2":"","footnotes":""},"categories":[2682],"tags":[2709,2691],"species":[938],"class_list":["post-56712","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-generational-nutrition","tag-reproduction-gestation"],"acf":[],"yoast_head":"\nPerformance Trace Minerals Improve In Vitro Fertilization Success – Zinpro\u00ae<\/title>\n<meta name=\"description\" content=\"Blog posts from Zinpro\u00ae about Performance Trace Minerals Improve In Vitro Fertilization Success . 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