Prohibition of hormones in animal reproduction: what to expect and what to do?.
As our understanding of ovarian function in cattle has improved, our ability to control it has also increased. The development of Fixed-Time Artificial Insemination (FTAI) protocols at the end of the 20th century has increased exponentially the number of animals inseminated over the last 20 years. T...
שמור ב:
| מחבר ראשי: | |
|---|---|
| מחברים אחרים: | |
| פורמט: | article |
| שפה: | אנגלית |
| יצא לאור: |
2023
|
| נושאים: | |
| גישה מקוונת: | https://ainfo.inia.uy/consulta/busca?b=pc&id=64386&biblioteca=vazio&busca=64386&qFacets=64386 |
| תגים: |
אין תגיות, היה/י הראשונ/ה לתייג את הרשומה!
|
| _version_ | 1868889983064997888 |
|---|---|
| author | BÓ, G.A. |
| author2 | MENCHACA, A. |
| author2_role | author |
| author_browse | BÓ, G.A. MENCHACA, A. |
| author_facet | BÓ, G.A. MENCHACA, A. |
| author_role | author |
| collection | AINFO |
| dc.creator.none.fl_str_mv | BÓ, G.A. MENCHACA, A. |
| dc.date.none.fl_str_mv | 2023 2025-06-23T18:35:07Z 2025-06-23T18:35:07Z 2025-06-23T18:35:07Z |
| dc.identifier.none.fl_str_mv | https://ainfo.inia.uy/consulta/busca?b=pc&id=64386&biblioteca=vazio&busca=64386&qFacets=64386 |
| dc.language.none.fl_str_mv | en eng |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess Acceso abierto |
| dc.source.none.fl_str_mv | reponame:AINFO instname:Instituto Nacional de Investigación Agropecuaria instacron:Instituto Nacional de Investigación Agropecuaria |
| dc.subject.none.fl_str_mv | ECG Estradiol Fixed-time AI GnRH PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA Sustainable Development Goals (SDGs) Partnership for the goals - Goal 17 |
| dc.title.none.fl_str_mv | Prohibition of hormones in animal reproduction: what to expect and what to do?. |
| dc.type.none.fl_str_mv | Article PublishedVersion info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | As our understanding of ovarian function in cattle has improved, our ability to control it has also increased. The development of Fixed-Time Artificial Insemination (FTAI) protocols at the end of the 20th century has increased exponentially the number of animals inseminated over the last 20 years. The main reasons for this growth were the possibility of obtaining acceptable pregnancy rates without heat detection and, above all, the induction of cyclicity in suckled cows in postpartum anestrus and prepubertal heifers at the beginning of the breeding season. Most FTAI treatments in South America have been based on the use of progesterone (P4) releasing devices and estradiol to synchronize both follicular wave emergence and ovulation, with pregnancy rates ranging from 40 to 60%. These protocols are implemented on a regular basis, allowing producers access to high-quality genetics, and increasing the overall pregnancy rates during the breeding season. In addition, it provided the professionals involved in these programs with a new source of income and the diversification of their practices into activities other than their usual clinical work. Many of these practices are now apparently at risk from restrictions on the use of estradiol by the European Union (EU) and other countries. However, the development of alternative protocols based on GnRH, with P4 devices and eCG and other new products that are not in the market yet will allow us to adapt to the new times that are coming. Logically, the challenge has already been raised and we must learn to use alternative protocols to try to continue increasing the use of this technology in beef and dairy herds. The objective of the present review is to describe the main aspects of banning estradiol in livestock production, the negative impacts on reproductive efficiency, and to present some alternative FTAI protocols for dairy and beef cattle. © The Author(s). |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_2289ce89ae372ecbcb8a1a540bf9dd2a |
| instacron_str | Instituto Nacional de Investigación Agropecuaria |
| institution | Instituto Nacional de Investigación Agropecuaria |
| instname_str | Instituto Nacional de Investigación Agropecuaria |
| language | eng |
| language_invalid_str_mv | en |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:redi.anii.org.uy:20.500.12381/4574 |
| publishDate | 2023 |
| publishDateSort | 2023 |
| reponame_str | AINFO |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Acceso abierto |
| spelling | Prohibition of hormones in animal reproduction: what to expect and what to do?.BÓ, G.A.MENCHACA, A.ECGEstradiolFixed-time AIGnRHPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIASustainable Development Goals (SDGs)Partnership for the goals - Goal 17As our understanding of ovarian function in cattle has improved, our ability to control it has also increased. The development of Fixed-Time Artificial Insemination (FTAI) protocols at the end of the 20th century has increased exponentially the number of animals inseminated over the last 20 years. The main reasons for this growth were the possibility of obtaining acceptable pregnancy rates without heat detection and, above all, the induction of cyclicity in suckled cows in postpartum anestrus and prepubertal heifers at the beginning of the breeding season. Most FTAI treatments in South America have been based on the use of progesterone (P4) releasing devices and estradiol to synchronize both follicular wave emergence and ovulation, with pregnancy rates ranging from 40 to 60%. These protocols are implemented on a regular basis, allowing producers access to high-quality genetics, and increasing the overall pregnancy rates during the breeding season. In addition, it provided the professionals involved in these programs with a new source of income and the diversification of their practices into activities other than their usual clinical work. Many of these practices are now apparently at risk from restrictions on the use of estradiol by the European Union (EU) and other countries. However, the development of alternative protocols based on GnRH, with P4 devices and eCG and other new products that are not in the market yet will allow us to adapt to the new times that are coming. Logically, the challenge has already been raised and we must learn to use alternative protocols to try to continue increasing the use of this technology in beef and dairy herds. The objective of the present review is to describe the main aspects of banning estradiol in livestock production, the negative impacts on reproductive efficiency, and to present some alternative FTAI protocols for dairy and beef cattle. © The Author(s).2025-06-23T18:35:07Z2025-06-23T18:35:07Z20232025-06-23T18:35:07ZArticlePublishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://ainfo.inia.uy/consulta/busca?b=pc&id=64386&biblioteca=vazio&busca=64386&qFacets=64386reponame:AINFOinstname:Instituto Nacional de Investigación Agropecuariainstacron:Instituto Nacional de Investigación Agropecuariaenenginfo:eu-repo/semantics/openAccessAcceso abiertooai:redi.anii.org.uy:20.500.12381/45742026-02-10T17:35:37Z |
| spellingShingle | Prohibition of hormones in animal reproduction: what to expect and what to do?. BÓ, G.A. ECG Estradiol Fixed-time AI GnRH PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA Sustainable Development Goals (SDGs) Partnership for the goals - Goal 17 |
| status_str | publishedVersion |
| title | Prohibition of hormones in animal reproduction: what to expect and what to do?. |
| title_full | Prohibition of hormones in animal reproduction: what to expect and what to do?. |
| title_fullStr | Prohibition of hormones in animal reproduction: what to expect and what to do?. |
| title_full_unstemmed | Prohibition of hormones in animal reproduction: what to expect and what to do?. |
| title_short | Prohibition of hormones in animal reproduction: what to expect and what to do?. |
| title_sort | Prohibition of hormones in animal reproduction: what to expect and what to do?. |
| topic | ECG Estradiol Fixed-time AI GnRH PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA Sustainable Development Goals (SDGs) Partnership for the goals - Goal 17 |
| url | https://ainfo.inia.uy/consulta/busca?b=pc&id=64386&biblioteca=vazio&busca=64386&qFacets=64386 |