Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase

Autores
Aller Atucha, Juan Florencio; Abalos, Marcos; Acuña, Francisco; Cancino, Andrea Karina
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objective of this study was to evaluate the effects of plasma progesterone (P4) concentrations during eCG-ovarian follicular superstimulatory treatment performed in early luteal phase and estradiol concentrations during peri-ovulatory period on ovarian response, number and embryo quality. On Day -2, females (n = 75) having a follicle ≥7 mm were treated with GnRH to induce ovulation. On Day 0, females that had ovulations (n = 54) were treated with 1000 IU eCG and were assigned to one of two treatments: (1) intravaginal device (ID) containing 0.5 g P4 (P4 group) and (2) no ID (Control group). On Day 5, females were administered PGF2α and the ID was removed. On Day 7 and 8, females were mated and embryo recovery was performed 7 or 8 days later. Blood samples were collected from Day 0 to 9. Number (± SD) of follicles ≥7 mm on day of mating was greater (P =  0.04) in the control (9.7 ± 4.2) than P4-treated (6.7 ± 4.9) group; number of corpora lutea did not differ (5.5 ± 3.1 and 5.2 ± 3.4 respectively). Ovulation rate was greater (P <  0.01) in the P4-group (77.4%; 130/168) than control group (53.3%; 135/253). Number of embryos with an excellent grade (grade 1) tended to be greater (P =  0.07) in the P4-group (82.4%; 42/51) than control group (65.4%; 36/55). It was concluded that supplementation with exogenous P4 during eCG treatment in early luteal phase inhibits excessive follicular growth, increases ovulation rate and improves embryo quality.
EEA Balcarce
Fil: Aller, Juan Florencio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.
Fil: Abalos, Marcos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina.
Fil: Acuña, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina.
Fil: Cancino, Andrea Karina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina.
Fuente
Animal Reproduction Science 208 : 106108 (September 2019)
Materia
Llama
Desarrollo Embrionario
Estradiol
Progesterona
Superovulación
Llamas
Embryonic Development
Progesterone
Superovulation
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/6003
Acceder
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oai_identifier_str oai:localhost:20.500.12123/6003
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phaseAller Atucha, Juan FlorencioAbalos, MarcosAcuña, FranciscoCancino, Andrea KarinaLlamaDesarrollo EmbrionarioEstradiolProgesteronaSuperovulaciónLlamasEmbryonic DevelopmentProgesteroneSuperovulationThe objective of this study was to evaluate the effects of plasma progesterone (P4) concentrations during eCG-ovarian follicular superstimulatory treatment performed in early luteal phase and estradiol concentrations during peri-ovulatory period on ovarian response, number and embryo quality. On Day -2, females (n = 75) having a follicle ≥7 mm were treated with GnRH to induce ovulation. On Day 0, females that had ovulations (n = 54) were treated with 1000 IU eCG and were assigned to one of two treatments: (1) intravaginal device (ID) containing 0.5 g P4 (P4 group) and (2) no ID (Control group). On Day 5, females were administered PGF2α and the ID was removed. On Day 7 and 8, females were mated and embryo recovery was performed 7 or 8 days later. Blood samples were collected from Day 0 to 9. Number (± SD) of follicles ≥7 mm on day of mating was greater (P =  0.04) in the control (9.7 ± 4.2) than P4-treated (6.7 ± 4.9) group; number of corpora lutea did not differ (5.5 ± 3.1 and 5.2 ± 3.4 respectively). Ovulation rate was greater (P <  0.01) in the P4-group (77.4%; 130/168) than control group (53.3%; 135/253). Number of embryos with an excellent grade (grade 1) tended to be greater (P =  0.07) in the P4-group (82.4%; 42/51) than control group (65.4%; 36/55). It was concluded that supplementation with exogenous P4 during eCG treatment in early luteal phase inhibits excessive follicular growth, increases ovulation rate and improves embryo quality.EEA BalcarceFil: Aller, Juan Florencio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.Fil: Abalos, Marcos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina.Fil: Acuña, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina.Fil: Cancino, Andrea Karina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina.Elsevier2019-09-27T12:50:43Z2019-09-27T12:50:43Z2019-09info: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/S0378432019302477http://hdl.handle.net/20.500.12123/60030378-4320https://doi.org/10.1016/j.anireprosci.2019.106108Animal Reproduction Science 208 : 106108 (September 2019)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-10-23T11:17:05Zoai:localhost:20.500.12123/6003instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:17:05.608INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase
title Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase
spellingShingle Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase
Aller Atucha, Juan Florencio
Llama
Desarrollo Embrionario
Estradiol
Progesterona
Superovulación
Llamas
Embryonic Development
Progesterone
Superovulation
title_short Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase
title_full Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase
title_fullStr Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase
title_full_unstemmed Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase
title_sort Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase
dc.creator.none.fl_str_mv Aller Atucha, Juan Florencio
Abalos, Marcos
Acuña, Francisco
Cancino, Andrea Karina
author Aller Atucha, Juan Florencio
author_facet Aller Atucha, Juan Florencio
Abalos, Marcos
Acuña, Francisco
Cancino, Andrea Karina
author_role author
author2 Abalos, Marcos
Acuña, Francisco
Cancino, Andrea Karina
author2_role author
author
author
dc.subject.none.fl_str_mv Llama
Desarrollo Embrionario
Estradiol
Progesterona
Superovulación
Llamas
Embryonic Development
Progesterone
Superovulation
topic Llama
Desarrollo Embrionario
Estradiol
Progesterona
Superovulación
Llamas
Embryonic Development
Progesterone
Superovulation
dc.description.none.fl_txt_mv The objective of this study was to evaluate the effects of plasma progesterone (P4) concentrations during eCG-ovarian follicular superstimulatory treatment performed in early luteal phase and estradiol concentrations during peri-ovulatory period on ovarian response, number and embryo quality. On Day -2, females (n = 75) having a follicle ≥7 mm were treated with GnRH to induce ovulation. On Day 0, females that had ovulations (n = 54) were treated with 1000 IU eCG and were assigned to one of two treatments: (1) intravaginal device (ID) containing 0.5 g P4 (P4 group) and (2) no ID (Control group). On Day 5, females were administered PGF2α and the ID was removed. On Day 7 and 8, females were mated and embryo recovery was performed 7 or 8 days later. Blood samples were collected from Day 0 to 9. Number (± SD) of follicles ≥7 mm on day of mating was greater (P =  0.04) in the control (9.7 ± 4.2) than P4-treated (6.7 ± 4.9) group; number of corpora lutea did not differ (5.5 ± 3.1 and 5.2 ± 3.4 respectively). Ovulation rate was greater (P <  0.01) in the P4-group (77.4%; 130/168) than control group (53.3%; 135/253). Number of embryos with an excellent grade (grade 1) tended to be greater (P =  0.07) in the P4-group (82.4%; 42/51) than control group (65.4%; 36/55). It was concluded that supplementation with exogenous P4 during eCG treatment in early luteal phase inhibits excessive follicular growth, increases ovulation rate and improves embryo quality.
EEA Balcarce
Fil: Aller, Juan Florencio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.
Fil: Abalos, Marcos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina.
Fil: Acuña, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina.
Fil: Cancino, Andrea Karina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina.
description The objective of this study was to evaluate the effects of plasma progesterone (P4) concentrations during eCG-ovarian follicular superstimulatory treatment performed in early luteal phase and estradiol concentrations during peri-ovulatory period on ovarian response, number and embryo quality. On Day -2, females (n = 75) having a follicle ≥7 mm were treated with GnRH to induce ovulation. On Day 0, females that had ovulations (n = 54) were treated with 1000 IU eCG and were assigned to one of two treatments: (1) intravaginal device (ID) containing 0.5 g P4 (P4 group) and (2) no ID (Control group). On Day 5, females were administered PGF2α and the ID was removed. On Day 7 and 8, females were mated and embryo recovery was performed 7 or 8 days later. Blood samples were collected from Day 0 to 9. Number (± SD) of follicles ≥7 mm on day of mating was greater (P =  0.04) in the control (9.7 ± 4.2) than P4-treated (6.7 ± 4.9) group; number of corpora lutea did not differ (5.5 ± 3.1 and 5.2 ± 3.4 respectively). Ovulation rate was greater (P <  0.01) in the P4-group (77.4%; 130/168) than control group (53.3%; 135/253). Number of embryos with an excellent grade (grade 1) tended to be greater (P =  0.07) in the P4-group (82.4%; 42/51) than control group (65.4%; 36/55). It was concluded that supplementation with exogenous P4 during eCG treatment in early luteal phase inhibits excessive follicular growth, increases ovulation rate and improves embryo quality.
publishDate 2019
dc.date.none.fl_str_mv 2019-09-27T12:50:43Z
2019-09-27T12:50:43Z
2019-09
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/S0378432019302477
http://hdl.handle.net/20.500.12123/6003
0378-4320
https://doi.org/10.1016/j.anireprosci.2019.106108
url https://www.sciencedirect.com/science/article/pii/S0378432019302477
http://hdl.handle.net/20.500.12123/6003
https://doi.org/10.1016/j.anireprosci.2019.106108
identifier_str_mv 0378-4320
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.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Animal Reproduction Science 208 : 106108 (September 2019)
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
_version_ 1846787527005962240
score 12.982451

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