Influence of testosterone administration at the end of the breeding season on sperm cryoresistance in rams (Ovis aries) and bucks (Capra hircus)
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| Format: | artículo biblioteca |
| Language: | English |
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Elsevier
2020-07
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| Subjects: | Cryodamage, Seasonality, Semen, Small ruminant, Testosterone, |
| Online Access: | http://hdl.handle.net/10261/339761 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100002850 https://api.elsevier.com/content/abstract/scopus_id/85082768083 |
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Cryodamage Seasonality Semen Small ruminant Testosterone Cryodamage Seasonality Semen Small ruminant Testosterone |
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Cryodamage Seasonality Semen Small ruminant Testosterone Cryodamage Seasonality Semen Small ruminant Testosterone Flores-Gil, Viviana N. Millán de la Blanca, María Gemma Velázquez, Rosario Toledano-Díaz, A. Santiago Moreno, Julián López Sebastián, Antonio Influence of testosterone administration at the end of the breeding season on sperm cryoresistance in rams (Ovis aries) and bucks (Capra hircus) |
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10 Pág. |
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Ministerio de Economía y Competitividad (España) |
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Ministerio de Economía y Competitividad (España) Flores-Gil, Viviana N. Millán de la Blanca, María Gemma Velázquez, Rosario Toledano-Díaz, A. Santiago Moreno, Julián López Sebastián, Antonio |
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artículo |
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Cryodamage Seasonality Semen Small ruminant Testosterone |
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Flores-Gil, Viviana N. Millán de la Blanca, María Gemma Velázquez, Rosario Toledano-Díaz, A. Santiago Moreno, Julián López Sebastián, Antonio |
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Flores-Gil, Viviana N. |
| title |
Influence of testosterone administration at the end of the breeding season on sperm cryoresistance in rams (Ovis aries) and bucks (Capra hircus) |
| title_short |
Influence of testosterone administration at the end of the breeding season on sperm cryoresistance in rams (Ovis aries) and bucks (Capra hircus) |
| title_full |
Influence of testosterone administration at the end of the breeding season on sperm cryoresistance in rams (Ovis aries) and bucks (Capra hircus) |
| title_fullStr |
Influence of testosterone administration at the end of the breeding season on sperm cryoresistance in rams (Ovis aries) and bucks (Capra hircus) |
| title_full_unstemmed |
Influence of testosterone administration at the end of the breeding season on sperm cryoresistance in rams (Ovis aries) and bucks (Capra hircus) |
| title_sort |
influence of testosterone administration at the end of the breeding season on sperm cryoresistance in rams (ovis aries) and bucks (capra hircus) |
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Elsevier |
| publishDate |
2020-07 |
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http://hdl.handle.net/10261/339761 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100002850 https://api.elsevier.com/content/abstract/scopus_id/85082768083 |
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dig-inia-es-10261-3397612024-10-26T20:40:46Z Influence of testosterone administration at the end of the breeding season on sperm cryoresistance in rams (Ovis aries) and bucks (Capra hircus) Flores-Gil, Viviana N. Millán de la Blanca, María Gemma Velázquez, Rosario Toledano-Díaz, A. Santiago Moreno, Julián López Sebastián, Antonio Ministerio de Economía y Competitividad (España) Agencia Estatal de Investigación (España) Fondo Nacional de Desarrollo Científico y Tecnológico (Chile) Flores-Gil, Viviana N. [0000-0003-2834-7404] Millán de la Blanca, María Gemma [0000-0002-2810-8510] Velázquez, Rosario [0009-0009-2115-4715] Toledano-Diaz, A. [0000-0001-6679-485X] Santiago Moreno, Julián [0000-0001-5551-8120] López Sebastián, Antonio [0000-0001-8695-7441] Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] Cryodamage Seasonality Semen Small ruminant Testosterone 10 Pág. This study examines the influence of administering testosterone at the end of the mating season, on the responses (morphometric and functional) of ram and buck sperm to freezing-thawing. Five rams were administered 25 mg testosterone propionate (TP) subcutaneously in 2 mL of olive oil twice per week (Monday and Thursday) from October 1 to 31; 5 bucks received exactly the same treatment but from November 1 to 30. Control groups were administered 2 mL of olive oil without TP twice per week over the same period. In the rams, no significant differences were seen in plasma testosterone between the treated and control groups during treatment (0.8 ± 0.2 ng/mL vs 1.5 ± 0.5 ng/mL; P > 0.05). Significant differences were seen in this respect, however, in the bucks (4.3 ± 0.8 ng/mL and 6.9 ± 0.9 ng/mL; P < 0.05). In the rams, TP treatment increased (P < 0.05) the straight-line velocity (VSL), linearity (LIN), straightness (STR) and wobble (WOB) values in fresh sperm samples. Similarly, in the frozen-thawed samples, TP treatment increased the VSL, average path velocity (VAP), LIN and WOB values (P < 0.05) compared with controls. In the bucks, treatment with TP had no effect on any measured variable in fresh sperm; frozen-thawed sperm, however, returned greater VSL, LIN, STR, and WOB values (P < 0.05) than did controls. In the rams, treatment with TP led to a reduction in all fresh sperm head morphometric variables (P < 0.05). Freezing-thawing further reduced (P < 0.05) all morphometric variables in both the control and treated groups. In the bucks, treatment with TP increased (P < 0.05) the length, area, and perimeter of fresh sperm cells, unlike that seen in ram sperm. Compared with fresh sperm, freezing-thawing led to reduced (P < 0.05) morphometric variables in both the control and treated bucks, except for the sperm head width, which in the controls remained unchanged. In conclusion, TP treatment at the end of the mating season affected fresh sperm quality, in both Spanish Merino rams and Murciano-Granadina bucks, in a species-specific manner, but improved the sperm kinetic variables after freezing-thawing in both species, apparently improving sperm cryoresistance. Treatment with TP affects the dimensions of the sperm head in a species-specific manner. This research was supported by MINECO grants AGL2014–52081-R and AGL2017–85753-R. Flores-Gil, VN was funded by FONDECYT-CONCYTEC (grant contract number 000245–2015-FONDECYT). Peer reviewed 2023-11-28T08:24:29Z 2023-11-28T08:24:29Z 2020-07 artículo http://purl.org/coar/resource_type/c_6501 Domestic Animal Endocrinology 72: e106425 (2020) 0739-7240 http://hdl.handle.net/10261/339761 10.1016/j.domaniend.2019.106425 1879-0054 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011033 http://dx.doi.org/10.13039/501100002850 32278257 2-s2.0-85082768083 https://api.elsevier.com/content/abstract/scopus_id/85082768083 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO//AGL2014-52081-R/ES/INFLUENCIA DEL ESTATUS ENDOCRINO EN LA RESPUESTA A LA CONGELACION%2FVITRIFICACION DE ESPERMATOZOIDES DE PEQUEÑOS RUMIANTES:USO DE RUMIANTES SILVESTRES%2FDOMESTICOS COMO MODELO/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2017-85753-R/ES/VARIACIONES EN LA EFICACIA DE LA CRIOPRESERVACION DE ESPERMATOZOIDES DE PEQUEÑOS RUMIANTES COMO RESPUESTA A LOS CAMBIOS DE HORMONAS TIROIDEAS Y LA EXPRESION DE ACUAPORINAS/ Departamento de Reproducción Animal Publisher's version https://doi.org/10.1016/j.domaniend.2019.106425 Sí open Elsevier |