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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
21/02/2014 |
Actualizado : |
11/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
VIÑOLES, C.; QUINTANS, G.; PAIVA, N.; CAVESTANY, D. |
Afiliación : |
CAROLINA VIÑOLES GIL, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; GRACIELA QUINTANS ILARIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; DANIEL CAVESTANY BOCKING, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Treatment of suckling beef cattle with a progestagen sponge and oestradiol benzoate or equine chorionic gonadotrophin. |
Fecha de publicación : |
2004 |
Fuente / Imprenta : |
Veterinary Record, 2004, v.154(4), p. 106-109. |
ISSN : |
0042-4900 |
DOI : |
10.1136/vr.154.4.106 |
Idioma : |
Inglés |
Contenido : |
Abstract
The ovarian responses of anoestrus beef cows to a combined treatment with medroxy-progesterone acetate (MAP) sponges and oestradiol benzoate or equine chorionic gonadotrophin (eCG) were evaluated. Forty-five suckling Hereford cows were allocated to three equal groups. Group 1 received a MAP sponge for seven days plus an injection of 2 mg oestradiol benzoate when the sponge was inserted (day 0) and 1 mg when the sponge was withdrawn; group 2 received identical treatment until day 7, when a dose of 400 iu of eCG was administered, and group 3 were left untreated as control animals. From day 0 to day 11 the cows' ovaries were examined daily by transrectal ultrasonography, and their oestrous behaviour was observed from 24 hours to 96 hours after the sponge was removed. Data from cows that had a corpus luteum present before the sponge was withdrawn were not used in subsequent analyses; there were four in group 1, five in group 2 and four in group 3. In 19 of the 21 cows in groups 1 and 2 a new follicular wave was observed to emerge at a mean (sd) interval of 3.9 (0.3) days after the insertion of the sponge, whereas in group 3 it occurred in all 11 cows after 3.4 (0.6) days. Only the six cows that had a follicle of 9 mm or larger in diameter ovulated (P < or = 0.001). Nine of the 11 cows in group 1 came into oestrus, compared with two of the 10 in group 2 and none of the control cows (P < or = 0.001). Ovulation was observed in four, two and none of the cows in groups 1, 2 and 3, respectively. MenosAbstract
The ovarian responses of anoestrus beef cows to a combined treatment with medroxy-progesterone acetate (MAP) sponges and oestradiol benzoate or equine chorionic gonadotrophin (eCG) were evaluated. Forty-five suckling Hereford cows were allocated to three equal groups. Group 1 received a MAP sponge for seven days plus an injection of 2 mg oestradiol benzoate when the sponge was inserted (day 0) and 1 mg when the sponge was withdrawn; group 2 received identical treatment until day 7, when a dose of 400 iu of eCG was administered, and group 3 were left untreated as control animals. From day 0 to day 11 the cows' ovaries were examined daily by transrectal ultrasonography, and their oestrous behaviour was observed from 24 hours to 96 hours after the sponge was removed. Data from cows that had a corpus luteum present before the sponge was withdrawn were not used in subsequent analyses; there were four in group 1, five in group 2 and four in group 3. In 19 of the 21 cows in groups 1 and 2 a new follicular wave was observed to emerge at a mean (sd) interval of 3.9 (0.3) days after the insertion of the sponge, whereas in group 3 it occurred in all 11 cows after 3.4 (0.6) days. Only the six cows that had a follicle of 9 mm or larger in diameter ovulated (P < or = 0.001). Nine of the 11 cows in group 1 came into oestrus, compared with two of the 10 in group 2 and none of the control cows (P < or = 0.001). Ovulation was observed in four, two and none of the cows in groups 1, 2 ... Presentar Todo |
Thesagro : |
BOVINOS; LACTANCIA; REPRODUCTIVIDAD; VACAS. |
Asunto categoría : |
L53 Fisiología Animal - Reproducción |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/3191/1/Quintans-arb-2004-3.pdf
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Marc : |
LEADER 02163naa a2200229 a 4500 001 1032801 005 2019-10-11 008 2004 bl uuuu u00u1 u #d 022 $a0042-4900 024 7 $a10.1136/vr.154.4.106$2DOI 100 1 $aVIÑOLES, C. 245 $aTreatment of suckling beef cattle with a progestagen sponge and oestradiol benzoate or equine chorionic gonadotrophin. 260 $c2004 520 $aAbstract The ovarian responses of anoestrus beef cows to a combined treatment with medroxy-progesterone acetate (MAP) sponges and oestradiol benzoate or equine chorionic gonadotrophin (eCG) were evaluated. Forty-five suckling Hereford cows were allocated to three equal groups. Group 1 received a MAP sponge for seven days plus an injection of 2 mg oestradiol benzoate when the sponge was inserted (day 0) and 1 mg when the sponge was withdrawn; group 2 received identical treatment until day 7, when a dose of 400 iu of eCG was administered, and group 3 were left untreated as control animals. From day 0 to day 11 the cows' ovaries were examined daily by transrectal ultrasonography, and their oestrous behaviour was observed from 24 hours to 96 hours after the sponge was removed. Data from cows that had a corpus luteum present before the sponge was withdrawn were not used in subsequent analyses; there were four in group 1, five in group 2 and four in group 3. In 19 of the 21 cows in groups 1 and 2 a new follicular wave was observed to emerge at a mean (sd) interval of 3.9 (0.3) days after the insertion of the sponge, whereas in group 3 it occurred in all 11 cows after 3.4 (0.6) days. Only the six cows that had a follicle of 9 mm or larger in diameter ovulated (P < or = 0.001). Nine of the 11 cows in group 1 came into oestrus, compared with two of the 10 in group 2 and none of the control cows (P < or = 0.001). Ovulation was observed in four, two and none of the cows in groups 1, 2 and 3, respectively. 650 $aBOVINOS 650 $aLACTANCIA 650 $aREPRODUCTIVIDAD 650 $aVACAS 700 1 $aQUINTANS, G. 700 1 $aPAIVA, N. 700 1 $aCAVESTANY, D. 773 $tVeterinary Record, 2004$gv.154(4), p. 106-109.
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INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
21/02/2014 |
Actualizado : |
08/07/2021 |
Tipo de producción científica : |
Abstracts/Resúmenes |
Autor : |
MESSA, A.; REBUFFO, M.; SALDIAS, R.; BEMHAJA, M.; MONZA, J. |
Afiliación : |
ALVARO JAVIER MESSA SASTRE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MONICA IRENE REBUFFO GFELLER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RODRIGO NOEL SALDIAS SPINETTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA DE LURDES BEMHAJA SARAIVA FERREIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE MONZA, Departamento de Biología Vegetal, Facultad de Agronomía, Montevideo, Uruguay. |
Título : |
Divergent selection of Lotus corniculatus and Lotus uliginosus for water stress and root characteristics. |
Fecha de publicación : |
2007 |
Fuente / Imprenta : |
Lotus Newsletter, 2007, Volume 37, Issue 1, pages 20-21. |
ISSN : |
1510-7809 |
Idioma : |
Inglés |
Notas : |
Proyecto LOTASSA: (FP6-2003-INCO-DEV2 PL-517617) financiado por la Unión Europea. |
Thesagro : |
LEGUMINOSAS FORRAJERAS; MEJORAMIENTO GENETICO. |
Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15796/1/Lotus-Newsletter-2007-Volume-37-1-20-21..pdf
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Marc : |
LEADER 00684nam a2200193 a 4500 001 1033683 005 2021-07-08 008 2007 bl uuuu u01u1 u #d 022 $a1510-7809 100 1 $aMESSA, A. 245 $aDivergent selection of Lotus corniculatus and Lotus uliginosus for water stress and root characteristics.$h[electronic resource] 260 $aLotus Newsletter, 2007, Volume 37, Issue 1, pages 20-21.$c2007 500 $aProyecto LOTASSA: (FP6-2003-INCO-DEV2 PL-517617) financiado por la Unión Europea. 650 $aLEGUMINOSAS FORRAJERAS 650 $aMEJORAMIENTO GENETICO 700 1 $aREBUFFO, M. 700 1 $aSALDIAS, R. 700 1 $aBEMHAJA, M. 700 1 $aMONZA, J.
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