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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
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Fecha : |
21/02/2014 |
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Actualizado : |
14/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
FIERRO, S.; OLIVERA-MUZANTEA, J.; GIL, J.; VIÑOLES, C. |
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Afiliación : |
CAROLINA VIÑOLES GIL, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Effects of prostaglandin administration on ovarian follicular dynamics, conception, prolificacy, and fecundity in sheep. |
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Fecha de publicación : |
2011 |
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Fuente / Imprenta : |
Theriogenology, 2011, v.76, no.4, p.630-639. |
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ISSN : |
0093-691X |
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DOI : |
10.1016/j.theriogenology.2011.03.016 |
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Idioma : |
Español
Inglés |
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Notas : |
Article history: Received 23 August 2010 / Received in revised form 17 March 201 / Accepted 18 March 2011. |
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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 |
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Palabras claves : |
PÉRDIDA DE EMBRIONES. |
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Thesagro : |
COMPORTAMIENTO REPRODUCTIVO; INSEMINACIÓN EN OVINOS; OVINOS. |
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Asunto categoría : |
--
L53 Fisiología Animal - Reproducción |
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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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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
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Fecha actual : |
03/03/2017 |
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Actualizado : |
23/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
NIELL, S.; JESÚS, F.; PÉREZ, N.; PÉREZ, C.; PAREJA, L.; ABATTE, S.; CARRASCO-LETELIER, L.; DIAZ, S.; MENDOZA, Y.; CESIO, V.; HEINZEN, H. |
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Afiliación : |
SILVINA NEILL, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); FLORENCIA JESÚS, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); NICOLÁS PÉREZ, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); CECILIA PÉREZ, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); LUCÍA PAREJA, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); SILVANA ABATTE, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); LEONIDAS CARRASCO-LETELIER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SEBASTIAN CARLO DIAZ CETTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; YAMANDU MENDOZA SPINA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VERÓNICA CESIO, Universidad de la República (UdelaR)/ Facultad de Química; Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); HORACIO HEINZEN, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR); Universidad de la República (UdelaR)/ Facultad de Química. |
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Título : |
Neonicotinoids transference from the field to the hive by honey bees: Towards a pesticide residues biomonitor |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Science of the Total Environment, 2017, v. 581-582, p. 25-31 |
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ISSN : |
0048-9697 |
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DOI : |
10.1016/j.scitotenv.2017.01.011 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 3 October 2016 / Received in revised form 14 December 2016 / Accepted 2 January 2017 / Available online xxxx |
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Contenido : |
ABSTRACT.
The beehive as a quantitative monitor of pesticide residues applied over a soybean crop was studied through a semi field experiment of controlled exposure of honey bees to pesticides in macro tunnels. The distribution within exposed beehives of pesticides commonly used in soybean plantation, was assessed. Residue levels of insecticides in soybean leaves, honey bees, wax, honey and pollen were analyzed. The transference from pesticides present in the environment into the beehive was evidenced. The obtained results allow relating pesticide concentrations present in the environment with traces found in foraging bees. Therefore, pesticide transference ratios could be calculated for each detected compound (acetamiprid, imidacloprid and thiamethoxam) which showed a linear inverse trend with their 1-octanol/water partition coefficient (Kow). The least transferred pesticide to the hive (acetamiprid) has the highest vapor pressure (Vp). This study gives new insights on the usefulness of monitoring the environment through beehives aiming to evaluate if agroecosystems remain sustainable. It also contributes to generate valuable information for model building aiming to predict environmental quality through beehive's analysis.
© 2017 Elsevier B.V. All rights reserved. |
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Palabras claves : |
ACETAMIPRID; BEEHIVE; IMIDACLOPRID; SOYBEAN CROP; THIAMETHOXAM. |
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Thesagro : |
APICULTURA; COLMENA; SOJA. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02421naa a2200373 a 4500
001 1056606
005 2019-10-23
008 2017 bl uuuu u00u1 u #d
022 $a0048-9697
024 7 $a10.1016/j.scitotenv.2017.01.011$2DOI
100 1 $aNIELL, S.
245 $aNeonicotinoids transference from the field to the hive by honey bees$bTowards a pesticide residues biomonitor$h[electronic resource]
260 $c2017
500 $aArticle history: Received 3 October 2016 / Received in revised form 14 December 2016 / Accepted 2 January 2017 / Available online xxxx
520 $aABSTRACT. The beehive as a quantitative monitor of pesticide residues applied over a soybean crop was studied through a semi field experiment of controlled exposure of honey bees to pesticides in macro tunnels. The distribution within exposed beehives of pesticides commonly used in soybean plantation, was assessed. Residue levels of insecticides in soybean leaves, honey bees, wax, honey and pollen were analyzed. The transference from pesticides present in the environment into the beehive was evidenced. The obtained results allow relating pesticide concentrations present in the environment with traces found in foraging bees. Therefore, pesticide transference ratios could be calculated for each detected compound (acetamiprid, imidacloprid and thiamethoxam) which showed a linear inverse trend with their 1-octanol/water partition coefficient (Kow). The least transferred pesticide to the hive (acetamiprid) has the highest vapor pressure (Vp). This study gives new insights on the usefulness of monitoring the environment through beehives aiming to evaluate if agroecosystems remain sustainable. It also contributes to generate valuable information for model building aiming to predict environmental quality through beehive's analysis. © 2017 Elsevier B.V. All rights reserved.
650 $aAPICULTURA
650 $aCOLMENA
650 $aSOJA
653 $aACETAMIPRID
653 $aBEEHIVE
653 $aIMIDACLOPRID
653 $aSOYBEAN CROP
653 $aTHIAMETHOXAM
700 1 $aJESÚS, F.
700 1 $aPÉREZ, N.
700 1 $aPÉREZ, C.
700 1 $aPAREJA, L.
700 1 $aABATTE, S.
700 1 $aCARRASCO-LETELIER, L.
700 1 $aDIAZ, S.
700 1 $aMENDOZA, Y.
700 1 $aCESIO, V.
700 1 $aHEINZEN, H.
773 $tScience of the Total Environment, 2017$gv. 581-582, p. 25-31
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