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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
Fecha : |
21/02/2014 |
Actualizado : |
14/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
FIERRO, S.; OLIVERA-MUZANTEA, J.; GIL, J.; VIÑOLES, C. |
Afiliación : |
CAROLINA VIÑOLES GIL, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Effects of prostaglandin administration on ovarian follicular dynamics, conception, prolificacy, and fecundity in sheep. |
Fecha de publicación : |
2011 |
Fuente / Imprenta : |
Theriogenology, 2011, v.76, no.4, p.630-639. |
ISSN : |
0093-691X |
DOI : |
10.1016/j.theriogenology.2011.03.016 |
Idioma : |
Español Inglés |
Notas : |
Article history: Received 23 August 2010 / Received in revised form 17 March 201 / Accepted 18 March 2011. |
Contenido : |
ABSTRACT.
Two experiments were conducted to determine the effects of prostaglandin administration on ovarian follicular dynamics, conception, prolificacy, and fecundity in sheep. During the breeding season, multiparous Corriedale ewes were randomly allocated to two groups: 1) PG group (n = 15 and n = 135 in Experiments I and II, respectively): synchronized with two injections of DL-Cloprostenol (125 μg) given 7 d apart, and inseminated at a fixed time (Day 0), 48 h after the second injection; and 2) Control group (n = 15 and n = 73 in Experiments I and II): ewes in spontaneous estrus inseminated at detected estrus. Ewes received 100 10 6 sperm by intrauterine AI. Ultrasonography was used to evaluate growth of the ovulatory follicle, ovulation rate (OR), conception rate, and prolificacy on Days 30 and 60. Ewes from the group PG had a larger (4.8 0.5 mm, mean SEM; P < 0.05) ovulatory follicle that grew faster (1.2 0.3 mm/d, P = 0.08), and a lower OR (1.37 0.1, P < 0.05), compared to ewes from the Control group (3.9 0.2 mm, 0.7 0.2 mm/d, and 1.61 0.1 respectively). Plasma progesterone concentrations from Days -6 to 1 were lower in the PG group (P < 0.05), but plasma estradiol concentrations were similar between groups (P > 0.05). Progesterone concentrations were similar between groups during the early luteal phase and on Days 12 and 17 (P > 0.05). The embryo recovery rate (Day 7) tended to be lower in the PG group (39 vs 64%, P = 0.08), but embryo quality did not differ between groups. Conception, prolificacy and fecundity, were lower in the PG than in the Control group (P < 0.05). Cumulative reproductive losses were similar between groups, but more twins were lost in the PG group (P < 0.05). We concluded that in ewes synchronized with PGF 2α given twice, 7 d apart, lower reproductive performance was associated with an environment dominated by lower progesterone concentrations that stimulated the preovulatory follicle to grow faster and become larger; this was associated with lower rates of ovulation, conception, prolificacy, and fecundity.
© 2011 Elsevier Inc. MenosABSTRACT.
Two experiments were conducted to determine the effects of prostaglandin administration on ovarian follicular dynamics, conception, prolificacy, and fecundity in sheep. During the breeding season, multiparous Corriedale ewes were randomly allocated to two groups: 1) PG group (n = 15 and n = 135 in Experiments I and II, respectively): synchronized with two injections of DL-Cloprostenol (125 μg) given 7 d apart, and inseminated at a fixed time (Day 0), 48 h after the second injection; and 2) Control group (n = 15 and n = 73 in Experiments I and II): ewes in spontaneous estrus inseminated at detected estrus. Ewes received 100 10 6 sperm by intrauterine AI. Ultrasonography was used to evaluate growth of the ovulatory follicle, ovulation rate (OR), conception rate, and prolificacy on Days 30 and 60. Ewes from the group PG had a larger (4.8 0.5 mm, mean SEM; P < 0.05) ovulatory follicle that grew faster (1.2 0.3 mm/d, P = 0.08), and a lower OR (1.37 0.1, P < 0.05), compared to ewes from the Control group (3.9 0.2 mm, 0.7 0.2 mm/d, and 1.61 0.1 respectively). Plasma progesterone concentrations from Days -6 to 1 were lower in the PG group (P < 0.05), but plasma estradiol concentrations were similar between groups (P > 0.05). Progesterone concentrations were similar between groups during the early luteal phase and on Days 12 and 17 (P > 0.05). The embryo recovery rate (Day 7) tended to be lower in the PG group (39 vs 64%, P = 0.08), but embryo quality d... Presentar Todo |
Palabras claves : |
PÉRDIDA DE EMBRIONES. |
Thesagro : |
COMPORTAMIENTO REPRODUCTIVO; INSEMINACIÓN EN OVINOS; OVINOS. |
Asunto categoría : |
-- L53 Fisiología Animal - Reproducción |
Marc : |
LEADER 02955naa a2200241 a 4500 001 1012822 005 2019-10-14 008 2011 bl uuuu u00u1 u #d 022 $a0093-691X 024 7 $a10.1016/j.theriogenology.2011.03.016$2DOI 100 1 $aFIERRO, S. 245 $aEffects of prostaglandin administration on ovarian follicular dynamics, conception, prolificacy, and fecundity in sheep. 260 $c2011 500 $aArticle history: Received 23 August 2010 / Received in revised form 17 March 201 / Accepted 18 March 2011. 520 $aABSTRACT. Two experiments were conducted to determine the effects of prostaglandin administration on ovarian follicular dynamics, conception, prolificacy, and fecundity in sheep. During the breeding season, multiparous Corriedale ewes were randomly allocated to two groups: 1) PG group (n = 15 and n = 135 in Experiments I and II, respectively): synchronized with two injections of DL-Cloprostenol (125 μg) given 7 d apart, and inseminated at a fixed time (Day 0), 48 h after the second injection; and 2) Control group (n = 15 and n = 73 in Experiments I and II): ewes in spontaneous estrus inseminated at detected estrus. Ewes received 100 10 6 sperm by intrauterine AI. Ultrasonography was used to evaluate growth of the ovulatory follicle, ovulation rate (OR), conception rate, and prolificacy on Days 30 and 60. Ewes from the group PG had a larger (4.8 0.5 mm, mean SEM; P < 0.05) ovulatory follicle that grew faster (1.2 0.3 mm/d, P = 0.08), and a lower OR (1.37 0.1, P < 0.05), compared to ewes from the Control group (3.9 0.2 mm, 0.7 0.2 mm/d, and 1.61 0.1 respectively). Plasma progesterone concentrations from Days -6 to 1 were lower in the PG group (P < 0.05), but plasma estradiol concentrations were similar between groups (P > 0.05). Progesterone concentrations were similar between groups during the early luteal phase and on Days 12 and 17 (P > 0.05). The embryo recovery rate (Day 7) tended to be lower in the PG group (39 vs 64%, P = 0.08), but embryo quality did not differ between groups. Conception, prolificacy and fecundity, were lower in the PG than in the Control group (P < 0.05). Cumulative reproductive losses were similar between groups, but more twins were lost in the PG group (P < 0.05). We concluded that in ewes synchronized with PGF 2α given twice, 7 d apart, lower reproductive performance was associated with an environment dominated by lower progesterone concentrations that stimulated the preovulatory follicle to grow faster and become larger; this was associated with lower rates of ovulation, conception, prolificacy, and fecundity. © 2011 Elsevier Inc. 650 $aCOMPORTAMIENTO REPRODUCTIVO 650 $aINSEMINACIÓN EN OVINOS 650 $aOVINOS 653 $aPÉRDIDA DE EMBRIONES 700 1 $aOLIVERA-MUZANTEA, J. 700 1 $aGIL, J. 700 1 $aVIÑOLES, C. 773 $tTheriogenology, 2011$gv.76, no.4, p.630-639.
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
12/05/2021 |
Actualizado : |
12/05/2021 |
Tipo de producción científica : |
Poster |
Autor : |
BERTONI, P.; BERRUETA, C.; DOGLIOTTI, S.; SCARLATO, M. |
Afiliación : |
P. BERTONI, Facultad de Agronomía-UdelaR, Uruguay.; MARIA CECILIA BERRUETA MOREIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SANTIAGO DOGLIOTTI, Facultad de Agronomía-UdelaR, Uruguay.; MARIANA SCARLATO GARCIA, Facultad de Agronomía-UdelaR, Uruguay. |
Título : |
Producción de tomate en invernáculo en el sur del Uruguay: identificando oportunidades para la transición agroecológica. (ID 249). |
Complemento del título : |
Eje temático: Metodologías de Diagnóstico, monitoreo y evaluación para la transición Agroecológica
. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
In: Congreso Latinoamericano de Agroecología, 8., 25-27 de noviembre de 2020, Online. |
Idioma : |
Español |
Notas : |
Organizado por la Sociedad Científica Latinoamericana de Agroecología (SOCLA) y el Grupo de Agroecología del Departamento de Sistemas Ambientales de la Facultad de Agronomía de la Universidad de la República, el VIII Congreso Latinoamericano de Agroecología se realizará los días 25, 26 y 27 de noviembre de 2020 en forma on line. |
Contenido : |
En este trabajo se buscó analizar la sostenibilidad, evaluando las prácticas y tecnologías utilizadas respecto al uso de pesticidas, manejo del suelo, y productividad del cultivo de tomate en invernáculo. |
Thesagro : |
CULTIVO EN INVERNACULO; CULTIVO PROTEGIDO; TOMATE. |
Asunto categoría : |
F01 Cultivo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15610/1/Poster-249-Bertoni.pdf
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Marc : |
LEADER 01197nam a2200193 a 4500 001 1062080 005 2021-05-12 008 2020 bl uuuu u00u1 u #d 100 1 $aBERTONI, P. 245 $aProducción de tomate en invernáculo en el sur del Uruguay$bidentificando oportunidades para la transición agroecológica. (ID 249).$h[electronic resource] 260 $aIn: Congreso Latinoamericano de Agroecología, 8., 25-27 de noviembre de 2020, Online.$c2020 500 $aOrganizado por la Sociedad Científica Latinoamericana de Agroecología (SOCLA) y el Grupo de Agroecología del Departamento de Sistemas Ambientales de la Facultad de Agronomía de la Universidad de la República, el VIII Congreso Latinoamericano de Agroecología se realizará los días 25, 26 y 27 de noviembre de 2020 en forma on line. 520 $aEn este trabajo se buscó analizar la sostenibilidad, evaluando las prácticas y tecnologías utilizadas respecto al uso de pesticidas, manejo del suelo, y productividad del cultivo de tomate en invernáculo. 650 $aCULTIVO EN INVERNACULO 650 $aCULTIVO PROTEGIDO 650 $aTOMATE 700 1 $aBERRUETA, C. 700 1 $aDOGLIOTTI, S. 700 1 $aSCARLATO, M.
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