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Registros recuperados : 36 | |
5. | | LÓPEZ-MAZZ, C.; QUINTANS, G.; BALDI, F.; BANCHERO, G. Efecto de la esquila a los 50 días de gestación sobre la condición corporal, concentración de ácidos grasos no esterificados en plasma de la oveja y peso vivo de los corderos al nacimiento. En: Congreso Asociación Uruguaya de Producción Animal (AUPA) (5º, 2014, Montevideo, UY). 2014. [Actas], Montevideo, Uruguay. Disponibles desde la página web de la AUPA.Biblioteca(s): INIA Treinta y Tres. |
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9. | | REGUEIRO, M; BALDI, F.; LÓPEZ MAZZ, C.; BANCHERO, G. Prepartum grazing with oat pasture and its effect on mother-lamb behaviour at parturition [Poster]. Seccio 51- Poster 26 In: Annual Meeting of the European Federation of Animal Science (EAAP), 69., 2018, Dubrovnik, Croatia. Book of abstracts... Wageningen, NL: WAP, 2018. P. 521Biblioteca(s): INIA La Estanzuela. |
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11. | | LÓPEZ-MAZZ, C.; PEREYRA, F.; SCARSI, A.; IBAÑEZ, V.; QUINTANS, G. Caracterización de la actividad ovárica y peso vivo en el segundo invierno en vaquillonas de razas para carne. [Resumen]. In: CONGRESO ARGENTINO DE PRODUCCIÓN ANIMAL, 31, Potrero de los Funes, San Luis, Argentina, 2008. Resúmenes. p. 172-173. Revista Argentina de Producción Animal, 2008, v. 28 sup. 1.Biblioteca(s): INIA Treinta y Tres. |
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12. | | PEREYRA, F.; LÓPEZ-MAZZ, C.; SCARSI, A.; PANISSA, G.; IBAÑEZ, V.; QUINTANS, G. Caracterización del peso vivo y edad a la pubertad en terneras de diferentes biotipos de razas para carne. [Resumen]. In: CONGRESO ARGENTINO DE PRODUCCIÓN ANIMAL, 31, Potrero de los Funes, San Luis, Argentina, 2008. Resúmenes. p. 174-175. Revista Argentina de Producción Animal, 2008, v. 28 sup. 1.Biblioteca(s): INIA Treinta y Tres. |
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15. | | QUINTANS, G.; SARAVIA, I.; WIJMA, R.; SCARSI, M.; LÓPEZ-MAZZ, C. Early weaning in primiparous autumn-calving cows in low body condition score: effects on body condition, nefa and insulin concentrations and ovarian cyclicity. In: International Congress on Animal Reproduction, (17º, 2012, Vancouver, Canada). 2012. Reproduction in Domestic Animals 2012, 47 (suppl. 4). Blackwell Verlag, Berlin. resumen no. 2754.Biblioteca(s): INIA Treinta y Tres. |
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16. | | SAPORITI, T.; CORREIA, R.; LÓPEZ MAZZ, C.; FILA, D.; GENOVESE, P.; BANCHERO, G.; BIELLI, A. Ecogenicidad testicular en borregos dentro y fuera de la estación reproductiva. In: JORNADAS URUGUAYAS DE BUIATRÍA, 43., 2015, PAYSANDÚ, UY.; GIANNEECHINI, E.; MATTO, C. (Ed.). [Trabajos presentados]. Paysandú: Centro Médico Veterinario de Paysandú/Sociedad Uruguaya de Buiatría. p.217-219Biblioteca(s): INIA La Estanzuela. |
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19. | | ROMAN, L.; CLARIGET, J.M.; KARLEN, M.; LÓPEZ-MAZZ, C.; PÉREZ-CLARIGET, R. Efecto de la suplementación con glicerina cruda y afrechillo de arroz sobre el comportamiento productivo y reproductivo de la vacas de carne. In: CONGRESO LATINOAMERICANO DE BUIATRÍA, 15. ; JORNADAS URUGUAYAS DE BUIATRÍA, 39, 2011, Paysandú, Uruguay: SMVU. 2011. p. 235-236Biblioteca(s): INIA La Estanzuela. |
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20. | | CLARIGET, J.M.; ROMAN, L.; KARLEN, M.; LÓPEZ-MAZZ, C.; PÉREZ-CLARIGET, R. Efecto de la suplementación con glicerina cruda y afrechillo de arroz sobre el metabolismo de vacas de carne. In: Reunión Latinoamericana de Producción Animal, 22.,"El desafío de la sostenibilidad". Poster, Montevideo, Uruguay: ALPA. 2011. Archivos Latinoamericanos de Producción Animal, v. 19, suppl. 1, p. 323, 2011.Biblioteca(s): INIA La Estanzuela. |
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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
12/09/2016 |
Actualizado : |
29/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
LÓPEZ-MAZZ, C; BALDI, F.; QUINTANS, G.; BANCHERO, G. |
Afiliación : |
Universidad de la República (UdelaR); Facultad de Agronomía, Uruguay; FERNANDO SEBASTIAN BALDI REY, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Brasil.; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Shearing ewes in the first third of gestation improves offspring performance. |
Fecha de publicación : |
2018 |
Fuente / Imprenta : |
Animal Production Science, 2018, 58, n.10, 1908-1914. |
DOI : |
10.1071/AN16461 |
Idioma : |
Inglés |
Notas : |
Article history: Submitted: 15 July 2016 Accepted: 20 March 2017 Published online: 26 May 2017 |
Contenido : |
ABSTRACT.
The effect of shearing ewes at 50 days of gestation on birth and weaning weight, vigour of the lambs in the first hour of life and the survival of single and twin lambs was investigated. Ultrasound pregnancy diagnosis was used to allocate 140 Polwarth ewes on Day 50 of gestation to one of four treatments, including two factors: shearing time (prepartum (PS) and postpartum (U)) and litter size (single (S) and twin (T)) resulting in the following treatments: single-bearing ewes shorn at 50 days of gestation (SPS, n = 39), single-bearing ewes unshorn (SU, n = 40), twin-bearing ewes shorn at 50 days of gestation (TPS, n = 28) and twin-bearing ewes unshorn (TU, n = 33). All ewes grazed together on improved pastures. Body condition score of the ewes was recorded once every 2 weeks from shearing until weaning, and plasma concentration of NEFA in ewes was measured once every 2 weeks from Day 30 postpartum until weaning (Day 104 ± 7). Gestation length, lamb behaviour during the first hour of life, lamb weight at birth and daily weight gain from birth to weaning and lamb survival were measured. Ewe body condition and plasma non-esterified fatty acids concentration was not affected by shearing time or litter size. Birthweight of the lambs was affected by shearing time (P = 0.0002), litter size (P < 0.0001) and sex of the lamb (P = 0.03). Lambs born to PS ewes had higher daily growth rate (P < 0.0001) than lambs born to U ewes (0.149 ± 0.07 vs 0.141 ± 0.07 kg, respectively). Birthweight affected the number of assisted lambs at birth (P = 0.01). Length of gestation was affected by shearing time (P < 0.0001). Sucking ability was improved by shearing time and litter size. Lambs born to PS ewes tried to suck (P = 0.01) and successfully sucked (P = 0.009) before lambs born to U ewes (23.3 ± 2 vs 28.7 ± 2 and 37.6 ± 1 vs 38.4 ± 1 min, respectively). Attempt and success to suck was affected by litter size (P = 0.004 and P = 0.05). TPS-born lambs tried to suck before (P = 0.004) and successfully sucked earlier (P = 0.0004) than TU lambs (26.1 ± 2.5 vs 33.7 ± 2 and 38 ± 1 vs 42.1 ± 2 min, respectively). Shearing time affected lamb survival at 20 days of age (P = 0.04). The improved survival in these lambs, expressed by a higher birthweight and vigour at birth, may be explained by better nutrition in utero in response to shearing during early pregnancy. In contrast to previous research on prepartum shearing, the present experiment shearing was done at 50 days of gestation. Early shearing in gestation might coincide with a period of high cell proliferation, intense vascular development and increased uterine and umbilical blood flows in the placenta which is in rapid development, and may result in improved outcomes when compared with shearing done on Day 70 or later of gestation. MenosABSTRACT.
The effect of shearing ewes at 50 days of gestation on birth and weaning weight, vigour of the lambs in the first hour of life and the survival of single and twin lambs was investigated. Ultrasound pregnancy diagnosis was used to allocate 140 Polwarth ewes on Day 50 of gestation to one of four treatments, including two factors: shearing time (prepartum (PS) and postpartum (U)) and litter size (single (S) and twin (T)) resulting in the following treatments: single-bearing ewes shorn at 50 days of gestation (SPS, n = 39), single-bearing ewes unshorn (SU, n = 40), twin-bearing ewes shorn at 50 days of gestation (TPS, n = 28) and twin-bearing ewes unshorn (TU, n = 33). All ewes grazed together on improved pastures. Body condition score of the ewes was recorded once every 2 weeks from shearing until weaning, and plasma concentration of NEFA in ewes was measured once every 2 weeks from Day 30 postpartum until weaning (Day 104 ± 7). Gestation length, lamb behaviour during the first hour of life, lamb weight at birth and daily weight gain from birth to weaning and lamb survival were measured. Ewe body condition and plasma non-esterified fatty acids concentration was not affected by shearing time or litter size. Birthweight of the lambs was affected by shearing time (P = 0.0002), litter size (P < 0.0001) and sex of the lamb (P = 0.03). Lambs born to PS ewes had higher daily growth rate (P < 0.0001) than lambs born to U ewes (0.149 ± 0.07 vs 0.141 ± 0.07 kg, respectively). B... Presentar Todo |
Palabras claves : |
CRECIMIENTO DEL CORDERO; ENVIRONMENTAL STRESS; ESTRÉS AMBIENTAL; LAMB GROWTH; LAMB SURVIVAL; MEJOR RENDIMIENTO EN LA DESCENDENCIA; PRIMER TERCIO GESTACIÓN; SUPERVIVENCIA DE CORDEROS. |
Thesagro : |
GESTACION; OVEJAS; URUGUAY. |
Asunto categoría : |
L52 Fisiología Animal- Crecimiento y desarrollo |
Marc : |
LEADER 03818naa a2200313 a 4500 001 1055615 005 2019-10-29 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1071/AN16461$2DOI 100 1 $aLÓPEZ-MAZZ, C 245 $aShearing ewes in the first third of gestation improves offspring performance.$h[electronic resource] 260 $c2018 500 $aArticle history: Submitted: 15 July 2016 Accepted: 20 March 2017 Published online: 26 May 2017 520 $aABSTRACT. The effect of shearing ewes at 50 days of gestation on birth and weaning weight, vigour of the lambs in the first hour of life and the survival of single and twin lambs was investigated. Ultrasound pregnancy diagnosis was used to allocate 140 Polwarth ewes on Day 50 of gestation to one of four treatments, including two factors: shearing time (prepartum (PS) and postpartum (U)) and litter size (single (S) and twin (T)) resulting in the following treatments: single-bearing ewes shorn at 50 days of gestation (SPS, n = 39), single-bearing ewes unshorn (SU, n = 40), twin-bearing ewes shorn at 50 days of gestation (TPS, n = 28) and twin-bearing ewes unshorn (TU, n = 33). All ewes grazed together on improved pastures. Body condition score of the ewes was recorded once every 2 weeks from shearing until weaning, and plasma concentration of NEFA in ewes was measured once every 2 weeks from Day 30 postpartum until weaning (Day 104 ± 7). Gestation length, lamb behaviour during the first hour of life, lamb weight at birth and daily weight gain from birth to weaning and lamb survival were measured. Ewe body condition and plasma non-esterified fatty acids concentration was not affected by shearing time or litter size. Birthweight of the lambs was affected by shearing time (P = 0.0002), litter size (P < 0.0001) and sex of the lamb (P = 0.03). Lambs born to PS ewes had higher daily growth rate (P < 0.0001) than lambs born to U ewes (0.149 ± 0.07 vs 0.141 ± 0.07 kg, respectively). Birthweight affected the number of assisted lambs at birth (P = 0.01). Length of gestation was affected by shearing time (P < 0.0001). Sucking ability was improved by shearing time and litter size. Lambs born to PS ewes tried to suck (P = 0.01) and successfully sucked (P = 0.009) before lambs born to U ewes (23.3 ± 2 vs 28.7 ± 2 and 37.6 ± 1 vs 38.4 ± 1 min, respectively). Attempt and success to suck was affected by litter size (P = 0.004 and P = 0.05). TPS-born lambs tried to suck before (P = 0.004) and successfully sucked earlier (P = 0.0004) than TU lambs (26.1 ± 2.5 vs 33.7 ± 2 and 38 ± 1 vs 42.1 ± 2 min, respectively). Shearing time affected lamb survival at 20 days of age (P = 0.04). The improved survival in these lambs, expressed by a higher birthweight and vigour at birth, may be explained by better nutrition in utero in response to shearing during early pregnancy. In contrast to previous research on prepartum shearing, the present experiment shearing was done at 50 days of gestation. Early shearing in gestation might coincide with a period of high cell proliferation, intense vascular development and increased uterine and umbilical blood flows in the placenta which is in rapid development, and may result in improved outcomes when compared with shearing done on Day 70 or later of gestation. 650 $aGESTACION 650 $aOVEJAS 650 $aURUGUAY 653 $aCRECIMIENTO DEL CORDERO 653 $aENVIRONMENTAL STRESS 653 $aESTRÉS AMBIENTAL 653 $aLAMB GROWTH 653 $aLAMB SURVIVAL 653 $aMEJOR RENDIMIENTO EN LA DESCENDENCIA 653 $aPRIMER TERCIO GESTACIÓN 653 $aSUPERVIVENCIA DE CORDEROS 700 1 $aBALDI, F. 700 1 $aQUINTANS, G. 700 1 $aBANCHERO, G. 773 $tAnimal Production Science, 2018, 58$gn.10, 1908-1914.
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