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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Treinta y Tres. |
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Fecha actual : |
01/08/2022 |
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Actualizado : |
01/09/2022 |
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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 : |
BANCHERO, G.; LÓPEZ-MAZZ, C.; FIERRO, S.; BALDI, F.; LUZARDO, S.; QUINTANS, G. |
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Afiliación : |
GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS LÓPEZ-MAZZ, Faculty of Agronomy, University of the Republic, Av. Garzón 780, Montevideo 12900, Uruguay.; SERGIO FIERRO, Secretariado Uruguayo de la Lana, Montevideo 12100, Uruguay.; FERNANDO BALDI, Facultad de Ciencias Agrarias y Veterinaria, Jaboticabal 14884-900, Brazil.; SANTIAGO FELIPE LUZARDO VILLAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Refeeding ewes ad libitum after a moderate energy restriction during mid gestation did not affect the onset of breeding and ovulating rate of female offspring. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Animal Reproduction Science, 2022, Volume 244, article 107034. doi: https://doi.org/10.1016/j.anireprosci.2022.107034 |
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DOI : |
10.1016/j.anireprosci.2022.107034 |
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Idioma : |
Inglés |
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Notas : |
Article history:Received 10 December 2021; Received in revised form 29 June 2022; Accepted 8 July 2022.
Corresponding author:E-mail address: gbanchero@inia.org. |
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Contenido : |
Abstract:Sub-nutrition during pregnancy might affect the offspring´s reproductive performance through effects on the development and function of gonads. This study evaluated a maternal energy restriction in ewes from day 48?106 of gestation, on pre- and post-weaning female lambs` performance, onset of female lambs? breeding and ovulation rate during their first breeding season. Adult Polwarth ewes sired by Finnish rams bearing single or twin lambs were assigned to two dietary treatments from day 48 to day 106 of gestation: restricted (R; n = 60) at 60 % of their metabolizable energy (ME) requirements, or non-restricted (NR; n = 54) at 100 % of their ME requirements. After the restriction period, ewes grazed all together ad libitum until weaning. The ewe lambs were evaluated from birth to weaning, as well as during their first breeding season. Although NR ewes weighed 17.7 % more than R ewes (P < 0.05) at the end of the restriction period, the nutritional treatment of the dams had no effect on the weight of the ewe lambs at birth, weaning or final weight (P > 0.05). Fat depth, rib eye area, the percentage of ewe-lambs cycling and their ovulation rate during the first breeding season was not affected by the ewe´s dietary treatment. Ewes restricted at 60 % of their ME requirements in mid-gestation seemed to have the capacity to compensate any detrimental effects on growth and development as well as the reproductive potential of female lambs if adequate refeeding conditions are provided in late gestation, throughout lactation and post-weaning. MenosAbstract:Sub-nutrition during pregnancy might affect the offspring´s reproductive performance through effects on the development and function of gonads. This study evaluated a maternal energy restriction in ewes from day 48?106 of gestation, on pre- and post-weaning female lambs` performance, onset of female lambs? breeding and ovulation rate during their first breeding season. Adult Polwarth ewes sired by Finnish rams bearing single or twin lambs were assigned to two dietary treatments from day 48 to day 106 of gestation: restricted (R; n = 60) at 60 % of their metabolizable energy (ME) requirements, or non-restricted (NR; n = 54) at 100 % of their ME requirements. After the restriction period, ewes grazed all together ad libitum until weaning. The ewe lambs were evaluated from birth to weaning, as well as during their first breeding season. Although NR ewes weighed 17.7 % more than R ewes (P < 0.05) at the end of the restriction period, the nutritional treatment of the dams had no effect on the weight of the ewe lambs at birth, weaning or final weight (P > 0.05). Fat depth, rib eye area, the percentage of ewe-lambs cycling and their ovulation rate during the first breeding season was not affected by the ewe´s dietary treatment. Ewes restricted at 60 % of their ME requirements in mid-gestation seemed to have the capacity to compensate any detrimental effects on growth and development as well as the reproductive potential of female lambs if adequate refeeding conditions are ... Presentar Todo |
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Palabras claves : |
FETAL DEVELOPMENT; OVULATION; PUBERTY; SHEEP NUTRITION. |
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Asunto categoría : |
L53 Fisiología Animal - Reproducción |
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Marc : |
LEADER 02579naa a2200253 a 4500
001 1063478
005 2022-09-01
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1016/j.anireprosci.2022.107034$2DOI
100 1 $aBANCHERO, G.
245 $aRefeeding ewes ad libitum after a moderate energy restriction during mid gestation did not affect the onset of breeding and ovulating rate of female offspring.$h[electronic resource]
260 $c2022
500 $aArticle history:Received 10 December 2021; Received in revised form 29 June 2022; Accepted 8 July 2022. Corresponding author:E-mail address: gbanchero@inia.org.
520 $aAbstract:Sub-nutrition during pregnancy might affect the offspring´s reproductive performance through effects on the development and function of gonads. This study evaluated a maternal energy restriction in ewes from day 48?106 of gestation, on pre- and post-weaning female lambs` performance, onset of female lambs? breeding and ovulation rate during their first breeding season. Adult Polwarth ewes sired by Finnish rams bearing single or twin lambs were assigned to two dietary treatments from day 48 to day 106 of gestation: restricted (R; n = 60) at 60 % of their metabolizable energy (ME) requirements, or non-restricted (NR; n = 54) at 100 % of their ME requirements. After the restriction period, ewes grazed all together ad libitum until weaning. The ewe lambs were evaluated from birth to weaning, as well as during their first breeding season. Although NR ewes weighed 17.7 % more than R ewes (P < 0.05) at the end of the restriction period, the nutritional treatment of the dams had no effect on the weight of the ewe lambs at birth, weaning or final weight (P > 0.05). Fat depth, rib eye area, the percentage of ewe-lambs cycling and their ovulation rate during the first breeding season was not affected by the ewe´s dietary treatment. Ewes restricted at 60 % of their ME requirements in mid-gestation seemed to have the capacity to compensate any detrimental effects on growth and development as well as the reproductive potential of female lambs if adequate refeeding conditions are provided in late gestation, throughout lactation and post-weaning.
653 $aFETAL DEVELOPMENT
653 $aOVULATION
653 $aPUBERTY
653 $aSHEEP NUTRITION
700 1 $aLÓPEZ-MAZZ, C.
700 1 $aFIERRO, S.
700 1 $aBALDI, F.
700 1 $aLUZARDO, S.
700 1 $aQUINTANS, G.
773 $tAnimal Reproduction Science, 2022, Volume 244, article 107034. doi: https://doi.org/10.1016/j.anireprosci.2022.107034
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