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| 22. |  | LADO, J.; VICENTE, E.; RODRÍGUEZ, G.; ARES, G. Consumer perception of purple-fleshed sweet potatoes: hedonic, sensory, and emotional expectations. [Percepción de los boniatos de pulpa violeta: expectativas hedónicas, sensoriales y emocionales de los consumidores]. [Percepção da batata-doce de polpa roxa: expectativas hedonicas, sensoriais e emocionais dos consumidores]. Section: Food Technology. Agrociencia Uruguay, 2022, vol. 26, n.1, article e990. doi: https://doi.org/10.31285/AGRO.26.990 Article history: Received 21 December 2021; Accepted 07 May 2022; Published 13 May 2022.
Editor: Gustavo González-Neves. Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay.
Correspondence: Joanna Lado,...| Biblioteca(s): INIA Las Brujas. |
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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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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 : |
04/11/2019 |
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Actualizado : |
23/04/2021 |
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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 : |
LÓPEZ-MAZZ, C.; BALDI, F.; QUINTANS, G.; KENYON, P.R.; CORREA, O.; REGUEIRO, M.; ÁLVAREZ-OXILEY, A.; BANCHERO, G. |
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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. |
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Título : |
Effect of early shearing during gestation on the productive and reproductive behavior of female sheep offspring in their first 18 months of age. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Animal, 1 April 2020, Volume 14, Issue 4, Pages 807-813. Doi: https://doi.org/10.1017/S1751731119002441 |
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ISSN : |
1751-732X (Online) |
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DOI : |
10.1017/S1751731119002441 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 19 September 2018/ Accepted 17 September 2019 |
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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 |
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Palabras claves : |
EARLY SHEARING; ESQUILA; FEMALE PROGEN; GROWTH; IMMUNITY; REPRODUCTION. |
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Thesagro : |
OVINOS. |
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Asunto categoría : |
L53 Fisiología Animal - Reproducción |
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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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