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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
06/05/2016 |
Actualizado : |
08/08/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
FIERRO, S.; VIÑOLES, C.; OLIVERA-MUZANTE, J. |
Afiliación : |
CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Concentrations of steroid hormones, estrous, ovarian andreproductive responses in sheep estrous synchronized withdifferent prostaglandin-based protocols. |
Fecha de publicación : |
2016 |
Fuente / Imprenta : |
Animal Reproduction Science, 2016, v. 167, p. 74-82. |
DOI : |
10.1016/j.anireprosci.2016.02.009 |
Idioma : |
Inglés |
Notas : |
Article history: Received 14 August 2015; Received in revised form 7 February 2016; Accepted 8 February 2016; Available online 10 February 2016. |
Contenido : |
To determine estrous, ovarian and reproductive responses after different prostaglandin(PG)-based protocols, ewes were assigned to groups PG10, PG12, PG14 or PG16 (two PGinjections administered 10, 12, 14 or 16 days apart; respectively). Experiment I (n = 132) wasconducted to evaluate the estrous response, ovulation rate (OR), conception and fertility.Experiment II (n = 24) was conducted to evaluate ovarian follicle growth, steroid concen-trations and the interval from the second PG injection to estrus (PG-estrus) and ovulation(PG-ovulation). Estrous response was less with the PG16 (P < 0.05) treatment, and the extentof estrous synchrony was greater with the PG10 and PG12 treatments. Ovarian folliclegrowth and the intervals for the variables PG-estrus, PG-ovulation and OR were similaramong groups (P > 0.05). From 8 to 4 days before estrus, progesterone (P4) concentrationswere greater for the PG14 and PG16 than for the PG10 and PG12 (P < 0.05) groups. Therewere more days where concentrations of P4 were above 3.18 nmol/L with the PG14 andPG16 than PG10 and PG12 (P < 0.05) treatments. Use of the PG14 and PG16 treatmentsresulted in greater estradiol (E2) at estrus and 12 h later than use of the PG10 and PG12treatments. A positive correlation was observed between the duration of the luteal phaseand maximum E2 concentrations, and between duration of the luteal phase and days withE2 concentrations above 10 pmol/L. Conception and fertility were greater with use of thePG14 compared with PG10 and PG12 (P < 0.05) treatments. The administration of two PGinjections 10, 12, 14 or 16 days apart resulted in different durations of the luteal phasethat were positively associated with E2 concentrations and the reproductive outcome. Theshorter luteal phases were associated with greater synchrony in time of estrus. The intervalsfor the variables PG-estrus, PG-ovulation and OR were similar among groups. MenosTo determine estrous, ovarian and reproductive responses after different prostaglandin(PG)-based protocols, ewes were assigned to groups PG10, PG12, PG14 or PG16 (two PGinjections administered 10, 12, 14 or 16 days apart; respectively). Experiment I (n = 132) wasconducted to evaluate the estrous response, ovulation rate (OR), conception and fertility.Experiment II (n = 24) was conducted to evaluate ovarian follicle growth, steroid concen-trations and the interval from the second PG injection to estrus (PG-estrus) and ovulation(PG-ovulation). Estrous response was less with the PG16 (P < 0.05) treatment, and the extentof estrous synchrony was greater with the PG10 and PG12 treatments. Ovarian folliclegrowth and the intervals for the variables PG-estrus, PG-ovulation and OR were similaramong groups (P > 0.05). From 8 to 4 days before estrus, progesterone (P4) concentrationswere greater for the PG14 and PG16 than for the PG10 and PG12 (P < 0.05) groups. Therewere more days where concentrations of P4 were above 3.18 nmol/L with the PG14 andPG16 than PG10 and PG12 (P < 0.05) treatments. Use of the PG14 and PG16 treatmentsresulted in greater estradiol (E2) at estrus and 12 h later than use of the PG10 and PG12treatments. A positive correlation was observed between the duration of the luteal phaseand maximum E2 concentrations, and between duration of the luteal phase and days withE2 concentrations above 10 pmol/L. Conception and fertility were greater with use of thePG14 compared wi... Presentar Todo |
Palabras claves : |
ESTROUS SYNCHRONIZATION; EWE; PROSTAGLANDIN; STEROID HORMONES; TIMED ARTIFICIAL INEMINATION. |
Thesagro : |
INSEMINACIÓN ARTIFICIAL; OVINOS; REPRODUCCIÓN; TASA OVULATORIA. |
Asunto categoría : |
L01 Ganadería |
Marc : |
LEADER 02914naa a2200277 a 4500 001 1054795 005 2019-08-08 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1016/j.anireprosci.2016.02.009$2DOI 100 1 $aFIERRO, S. 245 $aConcentrations of steroid hormones, estrous, ovarian andreproductive responses in sheep estrous synchronized withdifferent prostaglandin-based protocols. 260 $c2016 500 $aArticle history: Received 14 August 2015; Received in revised form 7 February 2016; Accepted 8 February 2016; Available online 10 February 2016. 520 $aTo determine estrous, ovarian and reproductive responses after different prostaglandin(PG)-based protocols, ewes were assigned to groups PG10, PG12, PG14 or PG16 (two PGinjections administered 10, 12, 14 or 16 days apart; respectively). Experiment I (n = 132) wasconducted to evaluate the estrous response, ovulation rate (OR), conception and fertility.Experiment II (n = 24) was conducted to evaluate ovarian follicle growth, steroid concen-trations and the interval from the second PG injection to estrus (PG-estrus) and ovulation(PG-ovulation). Estrous response was less with the PG16 (P < 0.05) treatment, and the extentof estrous synchrony was greater with the PG10 and PG12 treatments. Ovarian folliclegrowth and the intervals for the variables PG-estrus, PG-ovulation and OR were similaramong groups (P > 0.05). From 8 to 4 days before estrus, progesterone (P4) concentrationswere greater for the PG14 and PG16 than for the PG10 and PG12 (P < 0.05) groups. Therewere more days where concentrations of P4 were above 3.18 nmol/L with the PG14 andPG16 than PG10 and PG12 (P < 0.05) treatments. Use of the PG14 and PG16 treatmentsresulted in greater estradiol (E2) at estrus and 12 h later than use of the PG10 and PG12treatments. A positive correlation was observed between the duration of the luteal phaseand maximum E2 concentrations, and between duration of the luteal phase and days withE2 concentrations above 10 pmol/L. Conception and fertility were greater with use of thePG14 compared with PG10 and PG12 (P < 0.05) treatments. The administration of two PGinjections 10, 12, 14 or 16 days apart resulted in different durations of the luteal phasethat were positively associated with E2 concentrations and the reproductive outcome. Theshorter luteal phases were associated with greater synchrony in time of estrus. The intervalsfor the variables PG-estrus, PG-ovulation and OR were similar among groups. 650 $aINSEMINACIÓN ARTIFICIAL 650 $aOVINOS 650 $aREPRODUCCIÓN 650 $aTASA OVULATORIA 653 $aESTROUS SYNCHRONIZATION 653 $aEWE 653 $aPROSTAGLANDIN 653 $aSTEROID HORMONES 653 $aTIMED ARTIFICIAL INEMINATION 700 1 $aVIÑOLES, C. 700 1 $aOLIVERA-MUZANTE, J. 773 $tAnimal Reproduction Science, 2016$gv. 167, p. 74-82.
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Registro original : |
INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Salto Grande. |
Fecha actual : |
21/02/2014 |
Actualizado : |
02/07/2018 |
Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
Autor : |
VICENTE, E.; GIMÉNEZ, G.; MANZZIONI, A.; CABOT, M. |
Afiliación : |
CARLOS ESTEBAN VICENTE CASTRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO GIMÉNEZ FRANQUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WASHINGTON ARIEL MANZZIONI FERNANDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIO EBERT CABOT BACCHETTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Con INIA Ivahé vuelve el sabor original de la frutilla: se liberó el segundo cultivar uruguayo de la especie. |
Fecha de publicación : |
2003 |
Fuente / Imprenta : |
El País Agropecuario, 2003, v. 9, no. 106, p. 25-27. |
Idioma : |
Español |
Thesagro : |
FRESA; VARIEDADES. |
Asunto categoría : |
-- |
URL : |
http://www.inia.org.uy/publicaciones/documentos/sa/ara/2003/106ep.pdf
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Marc : |
LEADER 00503naa a2200169 a 4500 001 1012756 005 2018-07-02 008 2003 bl uuuu u00u1 u #d 100 1 $aVICENTE, E. 245 $aCon INIA Ivahé vuelve el sabor original de la frutilla$bse liberó el segundo cultivar uruguayo de la especie. 260 $c2003 650 $aFRESA 650 $aVARIEDADES 700 1 $aGIMÉNEZ, G. 700 1 $aMANZZIONI, A. 700 1 $aCABOT, M. 773 $tEl País Agropecuario, 2003$gv. 9, no. 106, p. 25-27.
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