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| Registros recuperados : 12 | |
| 2. |  | DE BARBIERI, I.; MONTOSSI, F.; VIÑOLES, C.; KENYON, P.R. Effect of shearing ewes during mid-and late-pregnancy on lambs weight at birth and survival to weaning under grazing conditions in Uruguay. Small Ruminant Research, Volume 119, Issues 1–3, June 2014, Pages 28-32. DOI: http://dx.doi.org/10.1016/j.smallrumres.2014.03.004 Article history:Received 7 September 2013; Received in revised form 11 March 2014; Accepted 14 March 2014;Available online 25 March 2014 . Acknowledgements: The authors thank the dedication, effort and compromise of the following farmers,...| Biblioteca(s): INIA Tacuarembó. |
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| 5. | | RAMOS, Z.; GARRICK , D. J.; BLAIR, H. T.; VERA, B.; CIAPPESONI, G.; KENYON, P. R. Genomic regions associated with wool, growth and reproduction traits in Uruguayan Merino Sheep. Genes, 2023, volume 14, issue 1, article 167. OPEN ACCESS. doi: https://doi.org/10.3390/genes14010167 Article history: Received 13 December 2022; Revised 29 December 2022; Accepted 4 January 2023; Published 7 January 2023. -- Correspondence author: Zully Ramos, email: z.ramosalvez@massey.ac.nz -- Academic Editor: Qiuyue Liu -- This...| Biblioteca(s): INIA Las Brujas. |
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| 6. | | RAMOS, Z.; BLAIR, H.T.; DE BARBIERI, I.; CIAPPESONI, G.; MONTOSSI, F.; KENYON, P.R. Phenotypic responses to selection for ultrafine wool in Uruguayan yearling lambs. Agriculture, 2021, v. 11, n, 2. DOI: https://doi.org/10.3390/agriculture11020179. OPEN ACCESS. Article history: Received: 28 January 2021; Accepted: 19 February 2021; Published: 22 February 2021. Acknowledgments: The authors thank the assistance of all staff of Glencoe Experimental Unit,
INIA Tacuarembó, SUL, SCMAU, INIA and CRILU.| Biblioteca(s): INIA Tacuarembó. |
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| 7. | | RAMOS, Z.; BLAIR, H.T.; DE BARBIERI, I.; CIAPPESONI, G.; MONTOSSI, F.; KENYON, P.R. Productivity and reproductive performance of mixed-age ewes across 20 years of selection for ultrafine wool in Uruguay. Agriculture, 2021; 11(8):712. Doi: https://doi.org/10.3390/agriculture11080712 Article history: Received 9 July 2021, Revised 21 July 2021, Accepted 25 July 2021, Published: 28 July 2021.
Academic Editor: Milan Shipka.
This article is an open access article distributed under the terms and conditions of the Creative...| Biblioteca(s): INIA Las Brujas. |
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| 8. | | LÓPEZ-MAZZ; BALDI, F.; QUINTANS, G.; KENYON, P.R.; CORREA, O.; REGUEIRO, M.; ÁLVAREZ-OXILEY, A.; BANCHERO, G. Efecto sobre el comportamiento productivo, reproductivo y la respuesta al desafío parasitario en corderas cuyas madres fueron esquiladas a los 50 días de gestación. In: QUINTANS, G.; IEWDIUKOW, M. (Ed.). Primer Seminario Técnico de Programación Fetal. Montevideo (UY): INIA, 2019. p. 99-109. (INIA Serie Técnica; 252)| Biblioteca(s): INIA Treinta y Tres. |
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| 9. | | LÓPEZ-MAZZ, C.; BALDI, F.; QUINTANS, G.; KENYON, P.R.; CORREA, O.; REGUEIRO, M.; ÁLVAREZ-OXILEY, A.; BANCHERO, G. Effect of early shearing during gestation on the productive and reproductive behavior of female sheep offspring in their first 18 months of age. Animal, 1 April 2020, Volume 14, Issue 4, Pages 807-813. Doi: https://doi.org/10.1017/S1751731119002441 Article history: Received 19 September 2018/ Accepted 17 September 2019| Biblioteca(s): INIA La Estanzuela; INIA Treinta y Tres. |
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| 10. | | RAMOS, Z.; GARRICK, D.J.; BLAIR, H.T.; DE BARBIERI, I.; CIAPPESONI, G.; MONTOSSI, F.; KENYON, P.R. Genetic and phenotypic relationships between ewe reproductive performance and wool and growth traits in Uruguayan Ultrafine Merino sheep. Journal of Animal Science, 2023, Volume 101, skad071. OPEN ACCESS. https://doi.org/10.1093/jas/skad071 Article history: Received 13 July 2022; Accepted 06 March 2023; Published 07 March 2023; Corrected and typeset 14 April 2023. -- Corresponding author: z.ramosalvez@massey.ac.nz -- Issue Section: Animal Genetics and Genomics...| Biblioteca(s): INIA Las Brujas. |
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| 11. | | MULVANEY, F.J.; MORRIS, S.T.; KENYON, P.R.; MOREL, P.C.H.; WEST, D.M.; VIÑOLES, C.; GLOVER, K.M.M. Comparison between the reproductive performance of ewe hoggets and mature ewes following a progesterone-based oestrus synchronization protocol. New Zealand Journal of Agricultural Research, 2013, v.56, no.4, p. 288-296. 0028-8233 Article history: Received 27 May 2013 // Accepted 5 September 2013.| Biblioteca(s): INIA Las Brujas. |
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| 12. | | PAGANONI, B.L.; FERGUSON, M.B.; FERRIO, S.; JONES, C.; KEARNEY, G.A.; KENYON, P.R.; MACLEAY, C.; VIÑOLES, C.; THOMPSON, A.N. Early reproductive losses are a major factor contributing to the poor reproductive performance of Merino ewe lambs mated at 8-10 months of age. Animal Production Science, 2014, v.54, no.6, p.762-772. Article history: Received 13 June 2013 / Accepted 26 February 2014 / Published online 9 April 2014.| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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| Registros recuperados : 12 | |
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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
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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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