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| Registros recuperados : 97 | |
| 7. |  | QUINTANS, G.; BANCHERO, G.; LÓPEZ, C.; BALDI, F. Condición corporal y restricción del amamantamiento en vacas de carne: I. efecto sobre el anestro posparto. In: JORNADAS URUGUAYAS DE BUIATRÍA, 36., 2008, Paysandú, Uruguay. Paysandú, UY: Centro Médico Veterinario de Paysandú, SUB, SMVU. 2008. p. 196-197.| Biblioteca(s): INIA La Estanzuela. |
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| 8. | | QUINTANS, G.; BANCHERO, G.; CARRIQUIRY, M.; BALDI, F. Condición corporal y restricción del amamantamiento en vacas de carne: II. efecto sobre la produccion de leche y crecimiento de los terneros. In: JORNADAS URUGUAYAS DE BUIATRÍA, 36., 2008, Paysandú, Uruguay. Paysandú, UY: Centro Médico Veterinario de Paysandú, SUB, SMVU. 2008. p. 198-199.| Biblioteca(s): INIA La Estanzuela. |
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| 9. | | QUINTANS, G.; BANCHERO, G.; CARRIQUIRY, M.; LÓPEZ, C.; BALDI, F. Efecto de la condición corporal y la restricción del amamantamiento con y sin presencia del ternero sobre la producción de leche, anestro posparto y crecimiento de los terneros Capítulo 3. Alternativas de manejo nutricional, control del amamantamiento y tratamientos hormonales durante el posparto. In: QUINTANS, G.; VELAZCO, J.I.; ROIG, G. (Eds.). Seminario de actualización técnica: cría vacuna. Montevideo (Uruguay): INIA, 2008. p. 172-181 (INIA Serie Técnica ; 174)| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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| 11. | | 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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| 17. | | 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. 521| Biblioteca(s): INIA La Estanzuela. |
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| 19. | | ESPIGOLAN, R.; BALDI, F.; BANCHERO, G.; BRITO, G.; LA MANNA, A.; ALBUQUERQUE, L.G. Aplicação de modelos não-lineares para o ajuste de características. REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 47., 2010, Salvador, BA. Empreendedorismo e Progresso Científicos na Zootecnia
Brasileira de Vanguarda Brasília, DF: Sociedade Brasileira de Zootecnia: UEM, 2010. Anais| 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. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
12/09/2016 |
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Actualizado : |
29/10/2019 |
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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.; BANCHERO, G. |
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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. |
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Título : |
Shearing ewes in the first third of gestation improves offspring performance. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Animal Production Science, 2018, 58, n.10, 1908-1914. |
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DOI : |
10.1071/AN16461 |
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Idioma : |
Inglés |
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Notas : |
Article history: Submitted: 15 July 2016 Accepted: 20 March 2017 Published online: 26 May 2017 |
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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 |
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Palabras claves : |
CRECIMIENTO DEL CORDERO; ENVIRONMENTAL STRESS; ESTRÉS AMBIENTAL; LAMB GROWTH; LAMB SURVIVAL; MEJOR RENDIMIENTO EN LA DESCENDENCIA; PRIMER TERCIO GESTACIÓN; SUPERVIVENCIA DE CORDEROS. |
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Thesagro : |
GESTACION; OVEJAS; URUGUAY. |
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Asunto categoría : |
L52 Fisiología Animal- Crecimiento y desarrollo |
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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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