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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Treinta y Tres. |
Fecha : |
04/11/2019 |
Actualizado : |
23/04/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
LÓPEZ-MAZZ, C.; BALDI, F.; QUINTANS, G.; KENYON, P.R.; CORREA, O.; REGUEIRO, M.; ÁLVAREZ-OXILEY, A.; BANCHERO, G. |
Afiliación : |
CARLOS LÓPEZ-MAZZ,, Universidad de la República (UdelaR)/ Facultad de Agronomía, Uruguay.; FERNANDO BALDI, Faculdade de Ciencias Agrárias e Veterinárias, São Paulo, Brazil.; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Sheep Research Centre, Institute of Veterinary, Animal and Biomedical Sciences, Massey University, New Zealand.; Universidad de la República (UdelaR)/ Facultad de Veterinaria, Uruguay.; Universidad de la República (UdelaR)/ Facultad de Agronomía, Uruguay.; Universidad de la República (UdelaR)/ Facultad de Agronomía, Uruguay.; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Effect of early shearing during gestation on the productive and reproductive behavior of female sheep offspring in their first 18 months of age. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
Animal, 1 April 2020, Volume 14, Issue 4, Pages 807-813. Doi: https://doi.org/10.1017/S1751731119002441 |
ISSN : |
1751-732X (Online) |
DOI : |
10.1017/S1751731119002441 |
Idioma : |
Inglés |
Notas : |
Article history: Received 19 September 2018/ Accepted 17 September 2019 |
Contenido : |
Abstract:The research has shown the interesting contributions of shearing in mid-gestation on the performance of lambs from birth to weaning. Other studies have reported that shearing at early pregnancy influences the development of the placenta and lamb live weight at birth. However, there was a lack of information on the effect of early-prepartum shearing on the behavior of the offspring from weaning onward. This study evaluated the effect of shearing ewes at 50 days of gestation on the growth, reproductive behavior and response to a gastrointestinal parasite challenge in the female offspring from weaning to 18 months old. Fifty-seven Polwarth female lambs were used, 22 being singles and 35 twins born to ewes either shorn at 50 days of pregnancy ( PS , n=23) or shorn at 62 days postpartum ( U , control, n=34) resulting in four subgroups: single lambs born to PS ewes (n=8), born to U ewes (n=14), twin lambs born to PS ewes (n=15) or born to U ewes (n=20). All progeny were managed together under improved pasture with a minimum forage allowance of 6% live weight on dry basis. Body weight, body condition score and fecal eggs count were recorded every 14 days from weaning to 18 months of age. Concentrations of progesterone were measured weekly (from 4 to 10 months of age and from 14 to 18 months of age) to establish the onset of puberty. Ovulation rate at an induced and a natural heat (545±1.0 and 562±1.0 day old) was recorded. Prepartum shearing did not affect the age at puberty or the ovulation rate of female offspring, but those born as singles were more precocious (P=0.03) and heavier (P=0.02) at puberty than twin born lambs. Both the average value of parasite egg count (P=0.0 7) and the Famacha index (P=0.02) for the entire study period were lower in lambs born to prepartum shorn ewes than those born to postpartum shorn ewes. In conclusion, shearing at 50 days of gestation did not affect the growth or the reproductive behavior of female offspring. However, female lambs born from ewe shorn during gestation showed a better response to the parasitic challenge, and further research is required to confirm this. MenosAbstract:The research has shown the interesting contributions of shearing in mid-gestation on the performance of lambs from birth to weaning. Other studies have reported that shearing at early pregnancy influences the development of the placenta and lamb live weight at birth. However, there was a lack of information on the effect of early-prepartum shearing on the behavior of the offspring from weaning onward. This study evaluated the effect of shearing ewes at 50 days of gestation on the growth, reproductive behavior and response to a gastrointestinal parasite challenge in the female offspring from weaning to 18 months old. Fifty-seven Polwarth female lambs were used, 22 being singles and 35 twins born to ewes either shorn at 50 days of pregnancy ( PS , n=23) or shorn at 62 days postpartum ( U , control, n=34) resulting in four subgroups: single lambs born to PS ewes (n=8), born to U ewes (n=14), twin lambs born to PS ewes (n=15) or born to U ewes (n=20). All progeny were managed together under improved pasture with a minimum forage allowance of 6% live weight on dry basis. Body weight, body condition score and fecal eggs count were recorded every 14 days from weaning to 18 months of age. Concentrations of progesterone were measured weekly (from 4 to 10 months of age and from 14 to 18 months of age) to establish the onset of puberty. Ovulation rate at an induced and a natural heat (545±1.0 and 562±1.0 day old) was recorded. Prepartum shearing did not affect the age at puber... Presentar Todo |
Palabras claves : |
EARLY SHEARING; ESQUILA; FEMALE PROGEN; GROWTH; IMMUNITY; REPRODUCTION. |
Thesagro : |
OVINOS. |
Asunto categoría : |
L53 Fisiología Animal - Reproducción |
Marc : |
LEADER 03203naa a2200325 a 4500 001 1060372 005 2021-04-23 008 2020 bl uuuu u00u1 u #d 022 $a1751-732X (Online) 024 7 $a10.1017/S1751731119002441$2DOI 100 1 $aLÓPEZ-MAZZ, C. 245 $aEffect of early shearing during gestation on the productive and reproductive behavior of female sheep offspring in their first 18 months of age.$h[electronic resource] 260 $c2020 500 $aArticle history: Received 19 September 2018/ Accepted 17 September 2019 520 $aAbstract:The research has shown the interesting contributions of shearing in mid-gestation on the performance of lambs from birth to weaning. Other studies have reported that shearing at early pregnancy influences the development of the placenta and lamb live weight at birth. However, there was a lack of information on the effect of early-prepartum shearing on the behavior of the offspring from weaning onward. This study evaluated the effect of shearing ewes at 50 days of gestation on the growth, reproductive behavior and response to a gastrointestinal parasite challenge in the female offspring from weaning to 18 months old. Fifty-seven Polwarth female lambs were used, 22 being singles and 35 twins born to ewes either shorn at 50 days of pregnancy ( PS , n=23) or shorn at 62 days postpartum ( U , control, n=34) resulting in four subgroups: single lambs born to PS ewes (n=8), born to U ewes (n=14), twin lambs born to PS ewes (n=15) or born to U ewes (n=20). All progeny were managed together under improved pasture with a minimum forage allowance of 6% live weight on dry basis. Body weight, body condition score and fecal eggs count were recorded every 14 days from weaning to 18 months of age. Concentrations of progesterone were measured weekly (from 4 to 10 months of age and from 14 to 18 months of age) to establish the onset of puberty. Ovulation rate at an induced and a natural heat (545±1.0 and 562±1.0 day old) was recorded. Prepartum shearing did not affect the age at puberty or the ovulation rate of female offspring, but those born as singles were more precocious (P=0.03) and heavier (P=0.02) at puberty than twin born lambs. Both the average value of parasite egg count (P=0.0 7) and the Famacha index (P=0.02) for the entire study period were lower in lambs born to prepartum shorn ewes than those born to postpartum shorn ewes. In conclusion, shearing at 50 days of gestation did not affect the growth or the reproductive behavior of female offspring. However, female lambs born from ewe shorn during gestation showed a better response to the parasitic challenge, and further research is required to confirm this. 650 $aOVINOS 653 $aEARLY SHEARING 653 $aESQUILA 653 $aFEMALE PROGEN 653 $aGROWTH 653 $aIMMUNITY 653 $aREPRODUCTION 700 1 $aBALDI, F. 700 1 $aQUINTANS, G. 700 1 $aKENYON, P.R. 700 1 $aCORREA, O. 700 1 $aREGUEIRO, M. 700 1 $aÁLVAREZ-OXILEY, A. 700 1 $aBANCHERO, G. 773 $tAnimal, 1 April 2020, Volume 14, Issue 4, Pages 807-813. Doi: https://doi.org/10.1017/S1751731119002441
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Registro original : |
INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
Fecha actual : |
05/04/2020 |
Actualizado : |
08/10/2020 |
Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
Autor : |
FEDERICI, M.; VALLEJOS, M.; ROVIRA, P.J.; CIGANDA, V.; RIGAMONTI, N.; FERRARI, G. |
Afiliación : |
MARIA TERESA FEDERICI RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA VALLEJOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO JUAN ROVIRA SANZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VERONICA SOLANGE CIGANDA BRASCA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NATALIA RIGAMONTI, Departamento de Aguas y Evaluación Ambiental Laboratorio Tecnológico del Uruguay - LATU; GRACIELA FERRARI, Departamento de Aguas y Evaluación Ambiental Laboratorio Tecnológico del Uruguay - LATU. |
Título : |
Cianobacterias: un desafío para la sostenibilidad de los sistemas de producción en aguas continentales. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
Revista INIA Uruguay, 2020, no. 60, p. 82-86. |
Serie : |
(Revista INIA; 60) |
ISSN : |
1510-9011 |
Idioma : |
Español |
Contenido : |
En las últimas décadas el aumento de nutrientes provenientes de la escorrentía, junto al aumento de temperatura a nivel mundial, han favorecido la formación de
floraciones de cianobacterias en los ambientes acuáticos. En el marco de un proyecto interinstitucional, INIA se plantea abordar el tema de las floraciones y la sostenibilidad de los sistemas de producción agropecuaria sobre aguas continentales en el embalse Rincón del Bonete, el cual recibe nutrientes provenientes de distintas
actividades agropecuarias, principalmente la ganadería y la agricultura.
En las últimas décadas el aumento de nutrientes provenientes de los desechos orgánicos de la industria, de asentamientos humanos y de la escorrentía de suelos con fertilizante, junto al aumento de temperatura a nivel mundial, han favorecido la formación de floraciones de cianobacterias en los ambientes acuáticos. |
Palabras claves : |
ORGANISMOS PROCARIOTAS. |
Thesagro : |
CIANOBACTERIAS. |
Asunto categoría : |
F01 Cultivo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/14379/1/Rev-INIA-60-Marzo-2020-p-82-86.pdf
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Marc : |
LEADER 01562naa a2200229 a 4500 001 1061007 005 2020-10-08 008 2020 bl uuuu u00u1 u #d 022 $a1510-9011 100 1 $aFEDERICI, M. 245 $aCianobacterias$bun desafío para la sostenibilidad de los sistemas de producción en aguas continentales.$h[electronic resource] 260 $c2020 490 $a(Revista INIA; 60) 520 $aEn las últimas décadas el aumento de nutrientes provenientes de la escorrentía, junto al aumento de temperatura a nivel mundial, han favorecido la formación de floraciones de cianobacterias en los ambientes acuáticos. En el marco de un proyecto interinstitucional, INIA se plantea abordar el tema de las floraciones y la sostenibilidad de los sistemas de producción agropecuaria sobre aguas continentales en el embalse Rincón del Bonete, el cual recibe nutrientes provenientes de distintas actividades agropecuarias, principalmente la ganadería y la agricultura. En las últimas décadas el aumento de nutrientes provenientes de los desechos orgánicos de la industria, de asentamientos humanos y de la escorrentía de suelos con fertilizante, junto al aumento de temperatura a nivel mundial, han favorecido la formación de floraciones de cianobacterias en los ambientes acuáticos. 650 $aCIANOBACTERIAS 653 $aORGANISMOS PROCARIOTAS 700 1 $aVALLEJOS, M. 700 1 $aROVIRA, P.J. 700 1 $aCIGANDA, V. 700 1 $aRIGAMONTI, N. 700 1 $aFERRARI, G. 773 $tRevista INIA Uruguay, 2020, no. 60, p. 82-86.
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