Embryo yield in llamas synchronized with two different intravaginal progesterone-releasing devices and superovulated with eCG
The objectives of this study were to compare the effects of two intravaginal devices (ID) containing the same dose (0.5 g) of progesterone (P4) on subsequent ovarian response, embryo production and circulating P4 concentration profile in llamas (Lama glama) treated with equine chorionic gonadotrop...
| Autores principales: | , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/1229 http://revistas.inia.es/index.php/sjar/article/view/7308/2484 |
| _version_ | 1855034769330405376 |
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| author | Aller Atucha, Juan Florencio Abalos, Marcos Acuña, Francisco Antonio Virgili, Rosana Requena, Francisco Cancino, Andrea Karina |
| author_browse | Abalos, Marcos Acuña, Francisco Antonio Aller Atucha, Juan Florencio Cancino, Andrea Karina Requena, Francisco Virgili, Rosana |
| author_facet | Aller Atucha, Juan Florencio Abalos, Marcos Acuña, Francisco Antonio Virgili, Rosana Requena, Francisco Cancino, Andrea Karina |
| author_sort | Aller Atucha, Juan Florencio |
| collection | INTA Digital |
| description | The objectives of this study were to compare the effects of two intravaginal devices (ID) containing the same dose (0.5 g) of
progesterone (P4) on subsequent ovarian response, embryo production and circulating P4 concentration profile in llamas (Lama
glama) treated with equine chorionic gonadotropin (eCG) for ovarian superstimulation. Female llamas were randomly assigned
(n = 10 llamas per group) to one of the following groups and treated (Day 0) with an ID containing 0.5 g of vegetal P4 to synchronize the emergence of a new follicular wave: i) DIB 0.5® and ii) Cronipres M15®. On Day 3 llamas were intramuscularly treated with 1000 IU of eCG. The IDs were removed on Day 7. Llamas were naturally mated (Day 9) and treated with GnRH analogue to induce ovulation. A second mating was allowed 24 h later. Embryos were collected between 7 and 8 days after the first mating. Blood samples were taken every day from Day 0 to Day 7 to measure circulating P4 concentrations. The results indicated that DIB device maintained greater plasma P4 levels as compared to Cronipres until Day 2. However, the mean (± SD) number of corpora lutea and recovered embryos was not affected (p < 0.05) by the type of ID (5.3 ± 2.6 vs 4.2 ± 2.2 and 3.5 ± 2.7 vs 2.6 ± 3.0 for DIB and Cronipres, respectively). In conclusion, both DIB and Cronipres devices can be successfully used to synchronize the emergence of follicular wave prior to a single dose of eCG in superovulation protocol in llamas. |
| format | info:ar-repo/semantics/artículo |
| id | INTA1229 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA12292018-01-19T19:14:02Z Embryo yield in llamas synchronized with two different intravaginal progesterone-releasing devices and superovulated with eCG Aller Atucha, Juan Florencio Abalos, Marcos Acuña, Francisco Antonio Virgili, Rosana Requena, Francisco Cancino, Andrea Karina Embriones Animales Animal Embryos Superovulation Hormonal Regulation Superovulación Progesterona Llama Lama Glama PMSG Regulación Hormonal Gonadotropina Coriónica Equina Dispositivos Intravaginales Tratamiento Hormonal eCG Intravaginal Devices Equine Chorionic Gonadotropin Hormonal Treatment The objectives of this study were to compare the effects of two intravaginal devices (ID) containing the same dose (0.5 g) of progesterone (P4) on subsequent ovarian response, embryo production and circulating P4 concentration profile in llamas (Lama glama) treated with equine chorionic gonadotropin (eCG) for ovarian superstimulation. Female llamas were randomly assigned (n = 10 llamas per group) to one of the following groups and treated (Day 0) with an ID containing 0.5 g of vegetal P4 to synchronize the emergence of a new follicular wave: i) DIB 0.5® and ii) Cronipres M15®. On Day 3 llamas were intramuscularly treated with 1000 IU of eCG. The IDs were removed on Day 7. Llamas were naturally mated (Day 9) and treated with GnRH analogue to induce ovulation. A second mating was allowed 24 h later. Embryos were collected between 7 and 8 days after the first mating. Blood samples were taken every day from Day 0 to Day 7 to measure circulating P4 concentrations. The results indicated that DIB device maintained greater plasma P4 levels as compared to Cronipres until Day 2. However, the mean (± SD) number of corpora lutea and recovered embryos was not affected (p < 0.05) by the type of ID (5.3 ± 2.6 vs 4.2 ± 2.2 and 3.5 ± 2.7 vs 2.6 ± 3.0 for DIB and Cronipres, respectively). In conclusion, both DIB and Cronipres devices can be successfully used to synchronize the emergence of follicular wave prior to a single dose of eCG in superovulation protocol in llamas. Fil: Aller Atucha, Juan Florencio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Abalos, Marcos. INTA, Estación Experimental Agropecuaria Abra Pampa; Argentina Fil: Acuña, Francisco Antonio. INTA, Estación Experimental Agropecuaria Abra Pampa; Argentina Fil: Virgili, Rosana. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias; Argentina Fil: Requena, Francisco. Universidad de Córdoba. Facultad de Veterinaria. Campus Universitario Rabanales; España Fil: Cancino, Andrea Karina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina 2017-09-15T11:57:03Z 2017-09-15T11:57:03Z 2015 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1229 http://revistas.inia.es/index.php/sjar/article/view/7308/2484 2171-9292 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Spanish journal of agricultural research 13 (3) : 1-6. (2015) |
| spellingShingle | Embriones Animales Animal Embryos Superovulation Hormonal Regulation Superovulación Progesterona Llama Lama Glama PMSG Regulación Hormonal Gonadotropina Coriónica Equina Dispositivos Intravaginales Tratamiento Hormonal eCG Intravaginal Devices Equine Chorionic Gonadotropin Hormonal Treatment Aller Atucha, Juan Florencio Abalos, Marcos Acuña, Francisco Antonio Virgili, Rosana Requena, Francisco Cancino, Andrea Karina Embryo yield in llamas synchronized with two different intravaginal progesterone-releasing devices and superovulated with eCG |
| title | Embryo yield in llamas synchronized with two different intravaginal progesterone-releasing devices and superovulated with eCG |
| title_full | Embryo yield in llamas synchronized with two different intravaginal progesterone-releasing devices and superovulated with eCG |
| title_fullStr | Embryo yield in llamas synchronized with two different intravaginal progesterone-releasing devices and superovulated with eCG |
| title_full_unstemmed | Embryo yield in llamas synchronized with two different intravaginal progesterone-releasing devices and superovulated with eCG |
| title_short | Embryo yield in llamas synchronized with two different intravaginal progesterone-releasing devices and superovulated with eCG |
| title_sort | embryo yield in llamas synchronized with two different intravaginal progesterone releasing devices and superovulated with ecg |
| topic | Embriones Animales Animal Embryos Superovulation Hormonal Regulation Superovulación Progesterona Llama Lama Glama PMSG Regulación Hormonal Gonadotropina Coriónica Equina Dispositivos Intravaginales Tratamiento Hormonal eCG Intravaginal Devices Equine Chorionic Gonadotropin Hormonal Treatment |
| url | http://hdl.handle.net/20.500.12123/1229 http://revistas.inia.es/index.php/sjar/article/view/7308/2484 |
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