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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
15/06/2022 |
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Actualizado : |
15/06/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
TSCHOPP, J.C.; MACAGNO, A.J.; MAPLETOFT, R.J.; MENCHACA, A.; BÓ, G. A. |
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Afiliación : |
JUAN CARLOS TSCHOPP, Instituto de Reproducción Animal Córdoba (IRAC), Córdoba, Argentina; Instituto A.P. de Ciencias Básicas y Aplicadas, Medicina Veterinaria, Universidad Nacional de Villa María, Villa del Rosario, Córdoba, Argentina; ALEJANDRO J. MACAGNO, Instituto de Reproducción Animal Córdoba (IRAC), Córdoba, Argentina; Instituto A.P. de Ciencias Básicas y Aplicadas, Medicina Veterinaria, Universidad Nacional de Villa María, Villa del Rosario, Córdoba, Argentina; REUBEN J. MAPLETOFT, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada; JOSE ALEJO MENCHACA BARBEITO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay; GABRIEL A. BÓ, Instituto de Reproducción Animal Córdoba (IRAC), Córdoba, Argentina; Instituto A.P. de Ciencias Básicas y Aplicadas, Medicina Veterinaria, Universidad Nacional de Villa María, Villa del Rosario, Córdoba, Argentina. |
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Título : |
Effect of the addition of GnRH and a second prostaglandin F2α treatment on pregnancy per artificial insemination in lactating dairy cows submitted to an estradiol/progesterone-based timed-AI protocol. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Theriogenology, 2022, Volume 188, Pages 63-70. doi: https://doi.org/10.1016/j.theriogenology.2022.05.019 |
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ISSN : |
0093-691X |
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DOI : |
10.1016/j.theriogenology.2022.05.019 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 23 February 2022; Received in revised form 23 May 2022; Accepted 24 May 2022; Available online 27 May 2022; To be published August 2022.
Corresponding author: Bó, G.A.; Instituto de Reproducción Animal Córdoba (IRAC), Zona Rural General Paz, Córdoba, Uruguay; email:gabrielbo62@gmail.com --
This research was supported by Fondo Nacional de Ciencia y Tecnología (FONCYT PICT 2017?4550), Instituto de Investigación Universidad Nacional de Villa María (UNVM), and Instituto de Reproducción Animal de Córdoba (IRAC). |
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Contenido : |
ABSTRACT - Two experiments determined whether the addition of GnRH at the beginning of an estradiol (E2)/progesterone (P4)- based synchronization protocol and/or a second dose of prostaglandin F2α (PGF2α) the day before P4 device removal improves pregnancy rate in lactating dairy cows. On Day 0, all cows received a CIDR-B device and 2 mg i.m. estradiol benzoate, and half received 200 μg i.m. gonadorelin acetate (GnRH). On Day 7, cows were further subdivided to receive PGF2α (500 μg i.m. cloprostenol) or no PGF2α treatment. On Day 8, CIDR-B were removed, and all cows received PGF2α, 1 mg estradiol cypionate and 400 IU eCG i.m., and an estrus detection aid. Experiment 1 was designed to evaluate the effect of treatments on follicular development from P4 device removal to ovulation, expression of estrus, time of ovulation and serum P4 concentrations. Cows (n = 76) were examined by ultrasonography and bled for serum P4 determinations every 12 h from the time of P4 device removal but were not inseminated. In Experiment 2, all cows (n = 1036) were inseminated based on estrus detection using tail-paint. Cows with >50% of the paint rubbed-off by 48 h after P4 device removal were inseminated at that time, whereas those not in estrus received 100 μg i.m. of GnRH and were inseminated 12 h later. In Experiment 1, the interval from P4 device removal to ovulation was 71.7 ± 1.5 h and did not differ among groups. However, cows that received 2 injections of PGF2α had a greater (P < 0.01) estrus rate and lower (P < 0.01) P4 concentrations at 48 h after P4 device removal than those that received 1 PGF2α (estrus rate: 86.8% vs 68.4% and P4 concentration: 0.12 ± 0.01 vs 0.36 ± 0.07, for 2 and 1 PGF2α, respectively). In Experiment 2, estrus rate was also influenced by the number of PGF2α treatments, regardless of whether cows received or did not receive GnRH on Day 0 (2 PGF2α: 84.7%, 438/517 vs 1 PGF2α: 65.7%, 341/519; P < 0.01). Furthermore, there was a GnRH treatment by number of PGF2α treatments interaction (P < 0.05) on P/AI that was attributed to greater (P < 0.05) P/AI in cows that received GnRH on Day 0 and 2 PGF2α than in the other three treatment groups (EB+1 PGF2α: 45.2%, 119/263; EB+2 PGF2α: 45.8%, 119/260; EB + GnRH + 1 PGF2α: 45.7%, 117/256 and EB + GnRH + 2 PGF2α: 57.2%, 147/257). It was concluded that the addition of GnRH on Day 0 and a second dose of PGF2α the day before P4 device removal improves P/AI in lactating dairy cows synchronized with an estradiol/P4-based protocol. © 2022 Elsevier Inc. MenosABSTRACT - Two experiments determined whether the addition of GnRH at the beginning of an estradiol (E2)/progesterone (P4)- based synchronization protocol and/or a second dose of prostaglandin F2α (PGF2α) the day before P4 device removal improves pregnancy rate in lactating dairy cows. On Day 0, all cows received a CIDR-B device and 2 mg i.m. estradiol benzoate, and half received 200 μg i.m. gonadorelin acetate (GnRH). On Day 7, cows were further subdivided to receive PGF2α (500 μg i.m. cloprostenol) or no PGF2α treatment. On Day 8, CIDR-B were removed, and all cows received PGF2α, 1 mg estradiol cypionate and 400 IU eCG i.m., and an estrus detection aid. Experiment 1 was designed to evaluate the effect of treatments on follicular development from P4 device removal to ovulation, expression of estrus, time of ovulation and serum P4 concentrations. Cows (n = 76) were examined by ultrasonography and bled for serum P4 determinations every 12 h from the time of P4 device removal but were not inseminated. In Experiment 2, all cows (n = 1036) were inseminated based on estrus detection using tail-paint. Cows with >50% of the paint rubbed-off by 48 h after P4 device removal were inseminated at that time, whereas those not in estrus received 100 μg i.m. of GnRH and were inseminated 12 h later. In Experiment 1, the interval from P4 device removal to ovulation was 71.7 ± 1.5 h and did not differ among groups. However, cows that received 2 injectio... Presentar Todo |
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Palabras claves : |
Dairy cows; Estrus; GnRH; Ovulation; PLATAFORMA DE SALUD ANIMAL; Timed-AI. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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Marc : |
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024 7 $a10.1016/j.theriogenology.2022.05.019$2DOI
100 1 $aTSCHOPP, J.C.
245 $aEffect of the addition of GnRH and a second prostaglandin F2α treatment on pregnancy per artificial insemination in lactating dairy cows submitted to an estradiol/progesterone-based timed-AI protocol.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 23 February 2022; Received in revised form 23 May 2022; Accepted 24 May 2022; Available online 27 May 2022; To be published August 2022. Corresponding author: Bó, G.A.; Instituto de Reproducción Animal Córdoba (IRAC), Zona Rural General Paz, Córdoba, Uruguay; email:gabrielbo62@gmail.com -- This research was supported by Fondo Nacional de Ciencia y Tecnología (FONCYT PICT 2017?4550), Instituto de Investigación Universidad Nacional de Villa María (UNVM), and Instituto de Reproducción Animal de Córdoba (IRAC).
520 $aABSTRACT - Two experiments determined whether the addition of GnRH at the beginning of an estradiol (E2)/progesterone (P4)- based synchronization protocol and/or a second dose of prostaglandin F2α (PGF2α) the day before P4 device removal improves pregnancy rate in lactating dairy cows. On Day 0, all cows received a CIDR-B device and 2 mg i.m. estradiol benzoate, and half received 200 μg i.m. gonadorelin acetate (GnRH). On Day 7, cows were further subdivided to receive PGF2α (500 μg i.m. cloprostenol) or no PGF2α treatment. On Day 8, CIDR-B were removed, and all cows received PGF2α, 1 mg estradiol cypionate and 400 IU eCG i.m., and an estrus detection aid. Experiment 1 was designed to evaluate the effect of treatments on follicular development from P4 device removal to ovulation, expression of estrus, time of ovulation and serum P4 concentrations. Cows (n = 76) were examined by ultrasonography and bled for serum P4 determinations every 12 h from the time of P4 device removal but were not inseminated. In Experiment 2, all cows (n = 1036) were inseminated based on estrus detection using tail-paint. Cows with >50% of the paint rubbed-off by 48 h after P4 device removal were inseminated at that time, whereas those not in estrus received 100 μg i.m. of GnRH and were inseminated 12 h later. In Experiment 1, the interval from P4 device removal to ovulation was 71.7 ± 1.5 h and did not differ among groups. However, cows that received 2 injections of PGF2α had a greater (P < 0.01) estrus rate and lower (P < 0.01) P4 concentrations at 48 h after P4 device removal than those that received 1 PGF2α (estrus rate: 86.8% vs 68.4% and P4 concentration: 0.12 ± 0.01 vs 0.36 ± 0.07, for 2 and 1 PGF2α, respectively). In Experiment 2, estrus rate was also influenced by the number of PGF2α treatments, regardless of whether cows received or did not receive GnRH on Day 0 (2 PGF2α: 84.7%, 438/517 vs 1 PGF2α: 65.7%, 341/519; P < 0.01). Furthermore, there was a GnRH treatment by number of PGF2α treatments interaction (P < 0.05) on P/AI that was attributed to greater (P < 0.05) P/AI in cows that received GnRH on Day 0 and 2 PGF2α than in the other three treatment groups (EB+1 PGF2α: 45.2%, 119/263; EB+2 PGF2α: 45.8%, 119/260; EB + GnRH + 1 PGF2α: 45.7%, 117/256 and EB + GnRH + 2 PGF2α: 57.2%, 147/257). It was concluded that the addition of GnRH on Day 0 and a second dose of PGF2α the day before P4 device removal improves P/AI in lactating dairy cows synchronized with an estradiol/P4-based protocol. © 2022 Elsevier Inc.
653 $aDairy cows
653 $aEstrus
653 $aGnRH
653 $aOvulation
653 $aPLATAFORMA DE SALUD ANIMAL
653 $aTimed-AI
700 1 $aMACAGNO, A.J.
700 1 $aMAPLETOFT, R.J.
700 1 $aMENCHACA, A.
700 1 $aBÓ, G. A.
773 $tTheriogenology, 2022, Volume 188, Pages 63-70. doi: https://doi.org/10.1016/j.theriogenology.2022.05.019
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INIA Las Brujas (LB) |
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| Registros recuperados : 28 | |
| 1. |  | MENCHACA, A. Assisted Reproductive Technologies (ART) and genome editing to support a sustainable livestock. Thematic Section: 36th Annual Meeting of the Brazilian Embryo Technology Society (SBTE). Animal Reproduction, 2023, Volume 20, Issue 2, e20230074. http://dx.doi.org/10.1590/1984-3143-AR2023-0074 -- OPEN ACCESS. Article history: Received May 26, 2023; Accepted July 21, 2023. -- Document type: Article Gold Open Access, Green Open Access. -- Correspondence: Menchaca, A.; Plataforma de Salud Animal, Instituto Nacional de Investigación...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Las Brujas. |
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| 3. | | MENCHACA, A. Sustainable food production: The contribution of genome editing in livestock. Sustainability (Switzerland), June 2021, volume 13, Issue 122, article 6788. OPEN ACCESS. Doi: https://doi.org/10.3390/su13126788 Article history: Received 16 March 2021; Revised 31 May 2021; Accepted 1 June 2021; Published 16 June 2021.
Academic Editor: Gerhart U. Ryffel.
This article belongs to the Special Issue Genome Editing in Animal System to Support...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Las Brujas. |
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| 4. | | BÓ, G.A.; MENCHACA, A. Prohibition of hormones in animal reproduction: what to expect and what to do?. Thematic Section: 36th Annual Meeting of the Brazilian Embryo Technology Society (SBTE). Animal Reproduction, 2023, Volume 20, Issue 2, e20230067. https://doi.org/10.1590/1984-3143-AR2023-0067 -- OPEN ACCESS. Article history: Received May 15, 2023; Accepted: July 18, 2023. -- Financial support: GAB received funding for this research from Fondo Nacional de Ciencia y Tecnología (FONCYT PICT 2017-4550), Instituto de Investigación Universidad...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Las Brujas. |
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| 8. | | GARCÍA PINTOS, C.; RIET-CORREA, F.; MENCHACA, A. Effect of foot-and-mouth disease vaccine on pregnancy failure in beef cows. Frontiers in Veterinary Science, November 2021, volume 8, Article number 761304. Open Access. doi: https://doi.org/10.3389/fvets.2021.761304 Article history: Received 19 August 2021; Accepted 18 October 2021; Published 12 November 2021.
Corresponding author: Menchaca, A.; Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay;...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Las Brujas. |
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| 12. | | KALDS, P.; CRISPO, M.; TESSON, L.; ANEGÓN, I.; CHEN KEY, Y.; WANG, X.; MENCHACA, A. Generation of Double-Muscled Sheep and Goats by CRISPR /Cas9-Mediated Knockout of the Myostatin Gene. Chapter 16. Methods in Molecular Biology, 2022, Volume 2495, Pages 295-323. Doi: https://doi.org/10.1007/978-1-0716-2301-5_16| Tipo: Capítulo en Libro Técnico-Científico |
| Biblioteca(s): INIA La Estanzuela. |
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| 17. | | NOVAS, R.; BASIKA, T.; WILLIAMSON, M. E.; FRESIA, P.; MENCHACA, A.; SCOTT, M. J. Identification and functional analysis of Cochliomyia hominivorax U6 gene promoters. Insect Molecular Biology, 2023. Early View. https://doi.org/10.1111/imb.12875 -- OPEN ACCESS. Article history: Received 9 March 2023, Accepted 4 August 2023, First published 21 September 2023. -- Scott, M.J.; Department of Entomology and Plant Pathology, North Carolina State University, Campus Box 7613, Raleigh, NC, United...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Las Brujas. |
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| 19. | | DOS SANTOS-NETO, P.C.; CUADRO, F.; SOUZA-NEVES, M.; CRISPO, M.; MENCHACA, A. Refinements in embryo manipulation applied to CRISPR technology in livestock. Theriogenology. 2023, Volume 208, Pages 142-148. https://doi.org/10.1016/j.theriogenology.2023.05.028 Article history: Received 14 April 2023; Received in revised form 29 May 2023; Accepted 29 May 2023; Available online 9 June 2023. -- Correspondence author: Menchaca, A.; Instituto de Reproducción Animal Uruguay, Fundación IRAUy,...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Las Brujas. |
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| 20. | | CUADRO, F.; DE BRUN, V.; BROCHADO, C.; SOUZA, M.; GARCÍA PINTOS, C.; MENEZES, C.; GASTAL, G.D.A.; MENCHACA, A. Gene expression patterns in uterus and oviduct during the preovulatory period in ewes. In: 19th International Congress on Animal Reproduction (ICAR), Bologna (Italy), 26-30 June 2022. p.185.| Biblioteca(s): INIA La Estanzuela. |
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| Registros recuperados : 28 | |
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