Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos)
Descripción del Articulo
The aim of the study was to evaluate factors that affect the fertility of artificial insemination (AI) with fresh diluted semen in alpacas. In Exp. 1, females with preovulatory follicles with diameters ≥7-≤ 9 or ≥10-≤12 mm were inseminated; in Exp. 2 the females were inseminated at 24, 26, 28 and 30...
| Autores: | , , , |
|---|---|
| Formato: | artículo |
| Fecha de Publicación: | 2024 |
| Institución: | Universidad Nacional Mayor de San Marcos |
| Repositorio: | Revistas - Universidad Nacional Mayor de San Marcos |
| Lenguaje: | español |
| OAI Identifier: | oai:revistasinvestigacion.unmsm.edu.pe:article/25890 |
| Enlace del recurso: | https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/25890 |
| Nivel de acceso: | acceso abierto |
| Materia: | alpaca inseminación artificial semen fresco artificial insemination fresh semen |
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Revistas - Universidad Nacional Mayor de San Marcos |
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Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos) Factores que influyen en la inseminación artificial con semen fresco en alpacas (Vicugna pacos) |
| title |
Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos) |
| spellingShingle |
Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos) Cardenas Suares, Nilton alpaca inseminación artificial semen fresco alpaca artificial insemination fresh semen |
| title_short |
Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos) |
| title_full |
Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos) |
| title_fullStr |
Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos) |
| title_full_unstemmed |
Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos) |
| title_sort |
Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos) |
| dc.creator.none.fl_str_mv |
Cardenas Suares, Nilton Catacora Flores, Nuvia Pacheco Curie, Joel Garcia Vera, Wilber Cardenas Suares, Nilton Catacora Flores, Nuvia Pacheco Curie, Joel Garcia Vera, Wilber |
| author |
Cardenas Suares, Nilton |
| author_facet |
Cardenas Suares, Nilton Catacora Flores, Nuvia Pacheco Curie, Joel Garcia Vera, Wilber |
| author_role |
author |
| author2 |
Catacora Flores, Nuvia Pacheco Curie, Joel Garcia Vera, Wilber |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
alpaca inseminación artificial semen fresco alpaca artificial insemination fresh semen |
| topic |
alpaca inseminación artificial semen fresco alpaca artificial insemination fresh semen |
| description |
The aim of the study was to evaluate factors that affect the fertility of artificial insemination (AI) with fresh diluted semen in alpacas. In Exp. 1, females with preovulatory follicles with diameters ≥7-≤ 9 or ≥10-≤12 mm were inseminated; in Exp. 2 the females were inseminated at 24, 26, 28 and 30 h after ovulation induction; In Exp. 3, alpacas were inseminated with semen at four concentrations: 15, 25, 35 and 45x106 sperm/ml; and in Exp. 4, using the best results from the previous experiments, 350 alpacas were inseminated in two peasant communities. Semen was collected by the post-copulatory method, using ejaculates with motility ≥60%, diluted in Tris-glucose-citric acid and egg yolk. Alpacas with preovulatory follicles ≥7 mm were selected for AI. Ovulation induction was done with a GnRH analogue and pregnancy diagnosis was made 30 days after service. Pregnancy rate was not affected by follicular size. AI 24 to 26 h after ovulation induction obtained a higher pregnancy rate (50 and 55%, respectively; p<0.05) compared to those inseminated at 28 and 30 h (35 and 30%). AI with 15x106 sperm/ml resulted in low pregnancy rates (30%) compared to 35 and 45x106 sperm/ml (50 and 55%, respectively). In the peasant communities, 55% pregnancy rate was obtained. The results suggest that the success of AI with fresh semen in alpacas is highly dependent on sperm dose and timing of insemination. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024-10-31 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/25890 10.15381/rivep.v35i5.25890 |
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https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/25890 |
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10.15381/rivep.v35i5.25890 |
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spa |
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spa |
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https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/25890/21502 |
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http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by/4.0 |
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openAccess |
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application/pdf |
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Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria |
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Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria |
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Revista de Investigaciones Veterinarias del Perú; Vol. 35 No. 5 (2024); e25890 Revista de Investigaciones Veterinarias del Perú; Vol. 35 Núm. 5 (2024); e25890 1682-3419 1609-9117 reponame:Revistas - Universidad Nacional Mayor de San Marcos instname:Universidad Nacional Mayor de San Marcos instacron:UNMSM |
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Universidad Nacional Mayor de San Marcos |
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UNMSM |
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UNMSM |
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Revistas - Universidad Nacional Mayor de San Marcos |
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Revistas - Universidad Nacional Mayor de San Marcos |
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1848424284280586240 |
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Factors that influence artificial insemination with fresh semen in alpacas (Vicugna pacos)Factores que influyen en la inseminación artificial con semen fresco en alpacas (Vicugna pacos)Cardenas Suares, NiltonCatacora Flores, NuviaPacheco Curie, JoelGarcia Vera, WilberCardenas Suares, NiltonCatacora Flores, NuviaPacheco Curie, JoelGarcia Vera, Wilberalpacainseminación artificialsemen frescoalpacaartificial inseminationfresh semenThe aim of the study was to evaluate factors that affect the fertility of artificial insemination (AI) with fresh diluted semen in alpacas. In Exp. 1, females with preovulatory follicles with diameters ≥7-≤ 9 or ≥10-≤12 mm were inseminated; in Exp. 2 the females were inseminated at 24, 26, 28 and 30 h after ovulation induction; In Exp. 3, alpacas were inseminated with semen at four concentrations: 15, 25, 35 and 45x106 sperm/ml; and in Exp. 4, using the best results from the previous experiments, 350 alpacas were inseminated in two peasant communities. Semen was collected by the post-copulatory method, using ejaculates with motility ≥60%, diluted in Tris-glucose-citric acid and egg yolk. Alpacas with preovulatory follicles ≥7 mm were selected for AI. Ovulation induction was done with a GnRH analogue and pregnancy diagnosis was made 30 days after service. Pregnancy rate was not affected by follicular size. AI 24 to 26 h after ovulation induction obtained a higher pregnancy rate (50 and 55%, respectively; p<0.05) compared to those inseminated at 28 and 30 h (35 and 30%). AI with 15x106 sperm/ml resulted in low pregnancy rates (30%) compared to 35 and 45x106 sperm/ml (50 and 55%, respectively). In the peasant communities, 55% pregnancy rate was obtained. The results suggest that the success of AI with fresh semen in alpacas is highly dependent on sperm dose and timing of insemination.El objetivo del estudio fue evaluar factores que afectan la fertilidad de la inseminación artificial (IA) con semen fresco diluido en alpacas. En el Exp. 1 se inseminaron hembras con folículo preovulatorio con diámetros ≥7-≤ 9 o ≥10-≤12 mm; en el Exp. 2 se inseminaron a las 24, 26, 28 y 30 h pos-inducción de ovulación; en el Exp. 3 se inseminaron con semen en cuatro concentraciones: 15, 25, 35 y 45x106 espermatozoides/ml; y en el Exp. 4, utilizando los mejores resultados de los experimentos previos se inseminaron 350 alpacas en dos comunidades campesinas. El semen se colectó por el método pos-cópula, utilizando eyaculados con motilidad ≥60%, diluidos en Tris-glucosa-ácido cítrico y yema de huevo. Para la IA se seleccionaron alpacas con folículo preovulatorio ≥7 mm. La inducción de la ovulación se hizo con un análogo de GnRH y el diagnóstico de gestación se hizo a los 30 días del servicio. La tasa de preñez no se afectó por el tamaño folicular. La IA de 24 a 26 h pos-inducción de la ovulación obtuvo una mayor tasa de preñez (50 y 55%, respectivamente; p<0.05) en comparación con las inseminadas a las 28 y 30 h (35 y 30%). La IA con 15x106 espermatozoides/ml resultaron en bajas tasas de preñez (30%) en comparación con 35 y 45x106 espermatozoides/ml (50 y 55%, respectivamente). En las comunidades alpaqueras se obtuvo 55% de preñez. Los resultados sugieren que el éxito de la IA con semen fresco en alpacas depende en gran medida de la dosis de espermatozoides y el momento de la inseminación.Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria2024-10-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/2589010.15381/rivep.v35i5.25890Revista de Investigaciones Veterinarias del Perú; Vol. 35 No. 5 (2024); e25890Revista de Investigaciones Veterinarias del Perú; Vol. 35 Núm. 5 (2024); e258901682-34191609-9117reponame:Revistas - Universidad Nacional Mayor de San Marcosinstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMspahttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/25890/21502Derechos de autor 2024 Wilber Garcia Vera, Joel Pacheco Curie, Nuvia Catacora Flores, Nilton Cardenas Suareshttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessoai:revistasinvestigacion.unmsm.edu.pe:article/258902024-11-01T00:32:00Z |
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13.870318 |
Nota importante:
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
