| |
|
|
|
Registro completo
|
|
Biblioteca (s) : |
INIA Tacuarembó. |
|
Fecha : |
22/09/2016 |
|
Actualizado : |
22/09/2016 |
|
Tipo de producción científica : |
Abstracts/Resúmenes |
|
Autor : |
ALVEZ, A.; GUILLEN, S.; SEQUEIRA, M.; MEIKLE, A.; VIÑOLES, C. |
|
Afiliación : |
ANDREA LORENA ALVEZ CERIZOLA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SERRANA GUILLEN DUARTE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidad de la República (UdelaR)/ Facultad de Veterinaria; Universidad de la República (UdelaR)/ Facultad de Veterinaria; CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
|
Título : |
Sub-fertility in beef cattle: follicle dynamics and progesterone concentration during the estrus cycle. [Resumen de poster]. |
|
Fecha de publicación : |
2016 |
|
Fuente / Imprenta : |
ln: Encuentro de Investigadores de la Región Noreste: Cerro Largo-Rivera-Tacuarembó, 1., 12 de agosto de 2016, Campus Interinstitucional de Tacuarembó, Tacuarembó. Libro de Resúmenes. Tacuarembó: UDELAR; INIA, 2016. |
|
Páginas : |
p. 44 |
|
Idioma : |
Español |
|
Notas : |
Modalidad: poster. |
|
Contenido : |
The repeat breeder syndrome has been characterised in dairy cows, but the experimental model used virgin heifers as controls, which may potentially be sub-fertile. The aim of this study was to characterize the pattern of follicle and corpus luteum (CL) development and progesterone concentrations during the estrus cycle in fertile and sub-fertile adult beef cows. Eleven Hereford cows (fertile n=5; sub-fertile n=6) were used in this experiment. The categories were defined based on their pregnancy rate at 24 and 73 months of age after five services at each age (three by artificial insemination [AI] and two by natural mating) in fertile (pregnant at first AI at two years old, pregnant ≥ 3 times at 73 months of age) and sub-fertile (pregnant at the fourth of fifth service by natural mating or did not got pregnant at 24 months of age and got pregnant one or two times at 73 months of age). At 90 months of age, were synchronized with two intramuscular prostaglandin injections given 14 d apart. The ovarian scanning began on the day of the second PG injection and continued daily for a complete estrous cycle up to d 7 of the following cycle.
Plasma samples were collected daily by jugular venepuncture to determinate progesterone concentrations by RIA. Data were analysed by ANOVA, using the GLM and MIXED procedures in SAS. There were no differences in body weight, body condition or height between fertile and sub-fertile cows. There were no differences between groups in follicular dynamics, area of the CL, number of 2 to 5 mm follicles, total number of follicles, duration of the estrous cycle or interval from estrus to ovulation. However, progesterone concentrations were higher in subfertile (7.58 ± 0.96 ng/ml) than in fertile (5.19 ± 1.08 ng/ml; P<0.01) cows from d 8 to 18 of the cycle. In conclusion, under the conditions in which this experiment was conducted, sub-fertile cows had higher concentrations of progesterone than fertile cows. These findings could be associated with the expression of its receptors in the uterus2 known to affect embryo survival. MenosThe repeat breeder syndrome has been characterised in dairy cows, but the experimental model used virgin heifers as controls, which may potentially be sub-fertile. The aim of this study was to characterize the pattern of follicle and corpus luteum (CL) development and progesterone concentrations during the estrus cycle in fertile and sub-fertile adult beef cows. Eleven Hereford cows (fertile n=5; sub-fertile n=6) were used in this experiment. The categories were defined based on their pregnancy rate at 24 and 73 months of age after five services at each age (three by artificial insemination [AI] and two by natural mating) in fertile (pregnant at first AI at two years old, pregnant ≥ 3 times at 73 months of age) and sub-fertile (pregnant at the fourth of fifth service by natural mating or did not got pregnant at 24 months of age and got pregnant one or two times at 73 months of age). At 90 months of age, were synchronized with two intramuscular prostaglandin injections given 14 d apart. The ovarian scanning began on the day of the second PG injection and continued daily for a complete estrous cycle up to d 7 of the following cycle.
Plasma samples were collected daily by jugular venepuncture to determinate progesterone concentrations by RIA. Data were analysed by ANOVA, using the GLM and MIXED procedures in SAS. There were no differences in body weight, body condition or height between fertile and sub-fertile cows. There were no differences between groups in follicular d... Presentar Todo |
|
Palabras claves : |
FOLLICULAR DYNAMICS; SUB-FERTILITY. |
|
Thesagro : |
PROGESTERONA. |
|
Asunto categoría : |
L53 Fisiología Animal - Reproducción |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/6087/1/pagina-44.pdf
|
|
Marc : |
LEADER 02940naa a2200229 a 4500
001 1055710
005 2016-09-22
008 2016 bl uuuu u00u1 u #d
100 1 $aALVEZ, A.
245 $aSub-fertility in beef cattle$bfollicle dynamics and progesterone concentration during the estrus cycle. [Resumen de poster].$h[electronic resource]
260 $c2016
300 $ap. 44
500 $aModalidad: poster.
520 $aThe repeat breeder syndrome has been characterised in dairy cows, but the experimental model used virgin heifers as controls, which may potentially be sub-fertile. The aim of this study was to characterize the pattern of follicle and corpus luteum (CL) development and progesterone concentrations during the estrus cycle in fertile and sub-fertile adult beef cows. Eleven Hereford cows (fertile n=5; sub-fertile n=6) were used in this experiment. The categories were defined based on their pregnancy rate at 24 and 73 months of age after five services at each age (three by artificial insemination [AI] and two by natural mating) in fertile (pregnant at first AI at two years old, pregnant ≥ 3 times at 73 months of age) and sub-fertile (pregnant at the fourth of fifth service by natural mating or did not got pregnant at 24 months of age and got pregnant one or two times at 73 months of age). At 90 months of age, were synchronized with two intramuscular prostaglandin injections given 14 d apart. The ovarian scanning began on the day of the second PG injection and continued daily for a complete estrous cycle up to d 7 of the following cycle. Plasma samples were collected daily by jugular venepuncture to determinate progesterone concentrations by RIA. Data were analysed by ANOVA, using the GLM and MIXED procedures in SAS. There were no differences in body weight, body condition or height between fertile and sub-fertile cows. There were no differences between groups in follicular dynamics, area of the CL, number of 2 to 5 mm follicles, total number of follicles, duration of the estrous cycle or interval from estrus to ovulation. However, progesterone concentrations were higher in subfertile (7.58 ± 0.96 ng/ml) than in fertile (5.19 ± 1.08 ng/ml; P<0.01) cows from d 8 to 18 of the cycle. In conclusion, under the conditions in which this experiment was conducted, sub-fertile cows had higher concentrations of progesterone than fertile cows. These findings could be associated with the expression of its receptors in the uterus2 known to affect embryo survival.
650 $aPROGESTERONA
653 $aFOLLICULAR DYNAMICS
653 $aSUB-FERTILITY
700 1 $aGUILLEN, S.
700 1 $aSEQUEIRA, M.
700 1 $aMEIKLE, A.
700 1 $aVIÑOLES, C.
773 $tln: Encuentro de Investigadores de la Región Noreste: Cerro Largo-Rivera-Tacuarembó, 1., 12 de agosto de 2016, Campus Interinstitucional de Tacuarembó, Tacuarembó. Libro de Resúmenes. Tacuarembó: UDELAR; INIA, 2016.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Tacuarembó (TBO) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
| Registros recuperados : 124 | |
| 42. |  | GÓMEZ MILLER, R.; FERREIRA, G. Productores ganaderos. In: GÓMEZ MILLER, R.; FERREIRA, G.; ALBIN, A. (Eds.). Caracterización de los sistemas de producción familiar en el área de alrededores de Tacuarembó. Montevideo (UY): INIA, 2011. p. 15-47 (INIA Serie Técnica; 195)| Tipo: Capítulo en Libro Técnico-Científico |
| Biblioteca(s): INIA Las Brujas. |
|    |
| 45. | | FERREIRA, G. Proyecto regional agroforestal. ln: INIA Tacuarembó. Unidad Experimental "La Magnolia". Día de Campo, 15 de diciembre de 2010, Tacuarembó. Alternativas tecnológicas para suelos de areniscas. Tacuarembó (Uruguay): INIA, 2010. p. 17-20 (INIA Serie Actividades de Difusión ; 633)| Biblioteca(s): INIA Tacuarembó. |
| |
| 47. | | GUTIÉRREZ, F.; FERREIRA, G.; BEMHAJA, M.; BALMELLI, G.; PÉREZ GOMAR, E. Caracterización de los sistemas agroforestales en la región norte y noreste de Uruguay. ln: CONGRESO NACIONAL DE SISTEMAS SILVOPASTORILES, 1., 2009, Posadas, Misiones, AR. Actas. Buenos Aires: INTA, 2009. p. 457-458.| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA La Estanzuela; INIA Tacuarembó. |
|  |
| 48. | | Ferreira, G.A.; Da Rocha Santos Veloso, V.; Veloso Naves, R.; Do Nascimento, J.L.; Chaves, L.J. Biodiversidade de insectos em Pequizeiro (Caryocar brasiliense, Camb.) no cerrado do Estado de goiás, Brasil Agrociencia, 2009, v. 13, no. 2, p. 14-31| Biblioteca(s): INIA Tacuarembó. |
| |
| 49. | | FERREIRA, G. Aspectos económicos de los sistemas de producción ganaderos de basalto. ln: INIA Tacuarembó. Unidad Experimental Glencoe. DÍA DE CAMPO, 10 setiembre, Paysandú, 2009. Producción Animal y Pasturas. Medidas de manejo y alimentación frente a eventos climáticos adversos. Lecciones aprendidas y propuestas a futuro. Tacuarembó (Uruguay): INIA, 2009. p. 37-41 (INIA Serie Actividades de Difusión ; 589)| Biblioteca(s): INIA Tacuarembó. |
| |
| 50. | | FERREIRA, G. Prólogo. Unidad Experimental La Magnolia, 3 abril, 2009. ln: INIA TACUAREMBÓ. Soluciones tecnológicas para la raza Braford: gira técnica. En el marco del CONGRESO MUNDIAL BRAFORD, 4., Punta del Este, Uruguay, 2009. Tacuarembó: INIA, 2009.| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA Tacuarembó. |
| |
| 52. | | GUTIERREZ, F.; FERREIRA, G.; BEMHAJA SARAIVA, M.; BALMELLI, G.; PEREZ GOMAR, E. Caracterización de los sistemas agroforestales en la Región Norte de Uruguay: enfoque a escala sección policial ln: Reunión del grupo técnico en forrajeras del Cono Sur, 22., 2008, Minas, Uruguay Bioma campos: innovando para mantener su sustentabilidad y competitividad. Memorias. Minas (Uruguay): INIA. FAO. PROCISUR, 2008. p. 266 Versión impresa y en CD ROM Instituto Nacional de Investigación Agropecuaria, Uruguay; FAO; PROCISUR| Biblioteca(s): INIA Tacuarembó. |
| |
| 53. | | Ferreira, G.; Pittaluga, O.; Chiara, G. Dinámica del sector productor de carne vacuna en Uruguay ln: Congreso Regional de Economía Agraria, 2., Congreso Rioplatense de Economía Agraria, 3., Reunión Anual de la AAEA, 39., Congreso de Economistas Agrarios de Chile, 13., Montevideo, Uruguay [CD-ROM] Trabajos presentados. Montevideo (Uruguay): INIA ; AAEA ; AEA ; SUEA., 2008. 1 CD-ROM Instituto Nacional de Investigación Agropecuaria (INIA) Asociación Argentina de Economía Agraria (AAEA)| Biblioteca(s): INIA Tacuarembó. |
| |
| 55. | | FERREIRA, G.; BENNADJI, Z.; AYALA, W.; PITTALUGA, O.; BALMELLI, G.; BEMHAJA, M.; JAURENA, M.; VIÑOLES, C.; RODRÍGUEZ, A.; OLMOS, F.; PÉREZ GOMAR, E.; ZERBINO, M.; BLUMETTO, O.; CASTAÑO, J.; GUTIÉRREZ, F.; GIORELLO, D.; GALLO, L.; PITTALUGA, L.; MILA, J.; POSSE, J.; IVANCHENKO, J. Avances y propuestas de investigación en sistemas agro forestales: 2007-2011. [Presentación oral]. In: Jornada de difuisón: Instalación de cuencas experimentales para el estudio de los efectos del establecimiento de áreas forestadas con Pino en el Uruguay, 10 de mayo, INIA Tacuarembó. Montevideo: INIA, 2007.| Tipo: Presentaciones Orales |
| Biblioteca(s): INIA Tacuarembó. |
| |
| 56. | | CUBBAGE, F.; MAC DONAGH, P.; SAWINSKI, J.; RUBILAR, R.; DONOSO, P.; FERREIRA, A.; HOEFLICH, V.; MORALES OLMOS, V.; FERREIRA, G.; BALMELLI, G.; SIRY, J.; BAEZ, M.N.; ALVAREZ, J. Timber investment returns for selected plantations and native forests in South America and the Southern United States. New Forests, 2007, v. 33, no. 3, p. 237-255. DOI: https://doi.org/10.1007/s11056-006-9025-4 Article history: Received: 3 April 2006 / Accepted: 15 October 2006 / Published online: 13 December 2006.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Tacuarembó. |
| |
| 59. | | BONINO, J.; CASARETTO, A.; MEDEROS, A.; FERREIRA, G.; GIL, A. Relevamiento epidemiológico de la prevalencia de footrot en ovinos del Uruguay ln: Bemhaja, M.; Pittaluga, O., eds. 30 años de investigación en suelos de areniscas, INIA Tacuarembó. Montevideo (Uruguay): INIA, 2006. p. 195-205 (INIA Serie Técnica ; 159)| Tipo: Capítulo en Libro Técnico-Científico |
| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
| |
| 60. | | FERREIRA, G.; PITTALUGA, O.; BEMHAJA, M.; BENNADJI, Z.; LAVECCHIA, A.; SAN JULIÁN, R.; MEDEROS, A.; SILVA, J. 30 años de la Unidad Experimental y Demostrativa La Magnolia Revista INIA, 2005, no. 5, p. 31-35| Tipo: Artículos en Revistas Agropecuarias |
| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
| |
| Registros recuperados : 124 | |
|
| Expresión de búsqueda válido. Check! |
|
|
