The effect of melatonin and season on in vivo embryo production of Dohne Merino ewes

Autores
Buffoni, Andres; Vozzi, Pedro Alejandro; Gonzalez, Diego Martin; Rios, Glenda Laura; Viegas Bordeira, Jorge Horacio; Abecia, José Alfonso
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
To determine the effect of melatonin on embryo production in superovulated donor Dohne Merino ewes, two experiments were carried out at Trelew, Argentina (43° S 65° W), during the breeding and the anestrous seasons. Twenty-two ewes were used in experiment 1 (breeding season). Animals were divided into two groups: group M (melatonin, n = 11) received a melatonin implant 48 days before superovulatory treatment, and C (control, n = 11), non-treated. Two intrauterine artificial inseminations were performed 33 and 48 h after sponge removal. Embryos were collected 7 days after the onset of oestrus (58 days after the onset of melatonin treatments). Twelve ewes of the same breed were used in experiment 2, which was carried out during the anestrus season, under the same experimental procedures (group M, n = 6; group C, n = 6). Treated ewes presented a significant delay in the onset of oestrus during the breeding season (M: 31.10 ± 1.04; C: 25.20 ± 0.98 h; p < 0.05). Melatonin induced a significant reduction in the number of degenerated embryos per ewe during seasonal anestrus (M: 0.60 ± 1.74; C: 3.00 ± 1.74; p < 0.05). No differences between groups and seasons were observed for ovulation, fertilization and viability rates, and the number of viable embryos per ewe. In conclusion, our results indicate that the use of melatonin to improve embryo production in MOET sheep programs in the Dohne Merino breed at 43° S does not improve fertility and embryo viability. Although, a reduction of the number of degenerated embryos during the anestrous season was observed in the treated group.
EEA Chubut
Fil: Buffoni, Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Vozzi, Pedro Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Gonzalez, Diego Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Rios, Glenda Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Viegas Bordeira, Jorge Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Abecia, José Alfonso. Universidad de Zaragoza. Facultad de Veterinaria. Departamento de Producción Animal y Ciencia de los Alimentos; España
Fuente
Small Ruminant Research 120 (1) : 121-124 (July 2014)
Materia
Oveja
Razas (animales)
Experimentación in Vivo
Embriones Animales
Melatonina
Ewes
Breeds (animals)
In Vivo Experimentation
Animal Embryos
Melatonin
Raza Merino
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/2785
Acceder
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oai_identifier_str oai:localhost:20.500.12123/2785
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling The effect of melatonin and season on in vivo embryo production of Dohne Merino ewesBuffoni, AndresVozzi, Pedro AlejandroGonzalez, Diego MartinRios, Glenda LauraViegas Bordeira, Jorge HoracioAbecia, José AlfonsoOvejaRazas (animales)Experimentación in VivoEmbriones AnimalesMelatoninaEwesBreeds (animals)In Vivo ExperimentationAnimal EmbryosMelatoninRaza MerinoTo determine the effect of melatonin on embryo production in superovulated donor Dohne Merino ewes, two experiments were carried out at Trelew, Argentina (43° S 65° W), during the breeding and the anestrous seasons. Twenty-two ewes were used in experiment 1 (breeding season). Animals were divided into two groups: group M (melatonin, n = 11) received a melatonin implant 48 days before superovulatory treatment, and C (control, n = 11), non-treated. Two intrauterine artificial inseminations were performed 33 and 48 h after sponge removal. Embryos were collected 7 days after the onset of oestrus (58 days after the onset of melatonin treatments). Twelve ewes of the same breed were used in experiment 2, which was carried out during the anestrus season, under the same experimental procedures (group M, n = 6; group C, n = 6). Treated ewes presented a significant delay in the onset of oestrus during the breeding season (M: 31.10 ± 1.04; C: 25.20 ± 0.98 h; p < 0.05). Melatonin induced a significant reduction in the number of degenerated embryos per ewe during seasonal anestrus (M: 0.60 ± 1.74; C: 3.00 ± 1.74; p < 0.05). No differences between groups and seasons were observed for ovulation, fertilization and viability rates, and the number of viable embryos per ewe. In conclusion, our results indicate that the use of melatonin to improve embryo production in MOET sheep programs in the Dohne Merino breed at 43° S does not improve fertility and embryo viability. Although, a reduction of the number of degenerated embryos during the anestrous season was observed in the treated group.EEA ChubutFil: Buffoni, Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; ArgentinaFil: Vozzi, Pedro Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; ArgentinaFil: Gonzalez, Diego Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; ArgentinaFil: Rios, Glenda Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Viegas Bordeira, Jorge Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; ArgentinaFil: Abecia, José Alfonso. Universidad de Zaragoza. Facultad de Veterinaria. Departamento de Producción Animal y Ciencia de los Alimentos; España2018-07-13T13:56:47Z2018-07-13T13:56:47Z2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://www.sciencedirect.com/science/article/pii/S0921448814001424http://hdl.handle.net/20.500.12123/27850921-4488https://doi.org/10.1016/j.smallrumres.2014.05.003Small Ruminant Research 120 (1) : 121-124 (July 2014)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-04T09:47:21Zoai:localhost:20.500.12123/2785instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:47:22.267INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv The effect of melatonin and season on in vivo embryo production of Dohne Merino ewes
title The effect of melatonin and season on in vivo embryo production of Dohne Merino ewes
spellingShingle The effect of melatonin and season on in vivo embryo production of Dohne Merino ewes
Buffoni, Andres
Oveja
Razas (animales)
Experimentación in Vivo
Embriones Animales
Melatonina
Ewes
Breeds (animals)
In Vivo Experimentation
Animal Embryos
Melatonin
Raza Merino
title_short The effect of melatonin and season on in vivo embryo production of Dohne Merino ewes
title_full The effect of melatonin and season on in vivo embryo production of Dohne Merino ewes
title_fullStr The effect of melatonin and season on in vivo embryo production of Dohne Merino ewes
title_full_unstemmed The effect of melatonin and season on in vivo embryo production of Dohne Merino ewes
title_sort The effect of melatonin and season on in vivo embryo production of Dohne Merino ewes
dc.creator.none.fl_str_mv Buffoni, Andres
Vozzi, Pedro Alejandro
Gonzalez, Diego Martin
Rios, Glenda Laura
Viegas Bordeira, Jorge Horacio
Abecia, José Alfonso
author Buffoni, Andres
author_facet Buffoni, Andres
Vozzi, Pedro Alejandro
Gonzalez, Diego Martin
Rios, Glenda Laura
Viegas Bordeira, Jorge Horacio
Abecia, José Alfonso
author_role author
author2 Vozzi, Pedro Alejandro
Gonzalez, Diego Martin
Rios, Glenda Laura
Viegas Bordeira, Jorge Horacio
Abecia, José Alfonso
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Oveja
Razas (animales)
Experimentación in Vivo
Embriones Animales
Melatonina
Ewes
Breeds (animals)
In Vivo Experimentation
Animal Embryos
Melatonin
Raza Merino
topic Oveja
Razas (animales)
Experimentación in Vivo
Embriones Animales
Melatonina
Ewes
Breeds (animals)
In Vivo Experimentation
Animal Embryos
Melatonin
Raza Merino
dc.description.none.fl_txt_mv To determine the effect of melatonin on embryo production in superovulated donor Dohne Merino ewes, two experiments were carried out at Trelew, Argentina (43° S 65° W), during the breeding and the anestrous seasons. Twenty-two ewes were used in experiment 1 (breeding season). Animals were divided into two groups: group M (melatonin, n = 11) received a melatonin implant 48 days before superovulatory treatment, and C (control, n = 11), non-treated. Two intrauterine artificial inseminations were performed 33 and 48 h after sponge removal. Embryos were collected 7 days after the onset of oestrus (58 days after the onset of melatonin treatments). Twelve ewes of the same breed were used in experiment 2, which was carried out during the anestrus season, under the same experimental procedures (group M, n = 6; group C, n = 6). Treated ewes presented a significant delay in the onset of oestrus during the breeding season (M: 31.10 ± 1.04; C: 25.20 ± 0.98 h; p < 0.05). Melatonin induced a significant reduction in the number of degenerated embryos per ewe during seasonal anestrus (M: 0.60 ± 1.74; C: 3.00 ± 1.74; p < 0.05). No differences between groups and seasons were observed for ovulation, fertilization and viability rates, and the number of viable embryos per ewe. In conclusion, our results indicate that the use of melatonin to improve embryo production in MOET sheep programs in the Dohne Merino breed at 43° S does not improve fertility and embryo viability. Although, a reduction of the number of degenerated embryos during the anestrous season was observed in the treated group.
EEA Chubut
Fil: Buffoni, Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Vozzi, Pedro Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Gonzalez, Diego Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Rios, Glenda Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Viegas Bordeira, Jorge Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
Fil: Abecia, José Alfonso. Universidad de Zaragoza. Facultad de Veterinaria. Departamento de Producción Animal y Ciencia de los Alimentos; España
description To determine the effect of melatonin on embryo production in superovulated donor Dohne Merino ewes, two experiments were carried out at Trelew, Argentina (43° S 65° W), during the breeding and the anestrous seasons. Twenty-two ewes were used in experiment 1 (breeding season). Animals were divided into two groups: group M (melatonin, n = 11) received a melatonin implant 48 days before superovulatory treatment, and C (control, n = 11), non-treated. Two intrauterine artificial inseminations were performed 33 and 48 h after sponge removal. Embryos were collected 7 days after the onset of oestrus (58 days after the onset of melatonin treatments). Twelve ewes of the same breed were used in experiment 2, which was carried out during the anestrus season, under the same experimental procedures (group M, n = 6; group C, n = 6). Treated ewes presented a significant delay in the onset of oestrus during the breeding season (M: 31.10 ± 1.04; C: 25.20 ± 0.98 h; p < 0.05). Melatonin induced a significant reduction in the number of degenerated embryos per ewe during seasonal anestrus (M: 0.60 ± 1.74; C: 3.00 ± 1.74; p < 0.05). No differences between groups and seasons were observed for ovulation, fertilization and viability rates, and the number of viable embryos per ewe. In conclusion, our results indicate that the use of melatonin to improve embryo production in MOET sheep programs in the Dohne Merino breed at 43° S does not improve fertility and embryo viability. Although, a reduction of the number of degenerated embryos during the anestrous season was observed in the treated group.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
2018-07-13T13:56:47Z
2018-07-13T13:56:47Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.sciencedirect.com/science/article/pii/S0921448814001424
http://hdl.handle.net/20.500.12123/2785
0921-4488
https://doi.org/10.1016/j.smallrumres.2014.05.003
url https://www.sciencedirect.com/science/article/pii/S0921448814001424
http://hdl.handle.net/20.500.12123/2785
https://doi.org/10.1016/j.smallrumres.2014.05.003
identifier_str_mv 0921-4488
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Small Ruminant Research 120 (1) : 121-124 (July 2014)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.623145

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