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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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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
03/02/2018 |
Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
Autor : |
CAÑEQUE, V.; DE LA FUENTE, J.; DÍAZ, M. T.; ALVAREZ, I. |
Afiliación : |
V. CAÑEQUE, INIA España (Instituto Nacional de Investigación y Tecnología Agraría y Alimentaria); J. DE LA FUENTE, INIA España (Instituto Nacional de Investigación y Tecnología Agraría y Alimentaria); M. T. DÍAZ, INIA España (Instituto Nacional de Investigación y Tecnología Agraría y Alimentaria); I. ALVAREZ, INIA España (Instituto Nacional de Investigación y Tecnología Agraría y Alimentaria). |
Título : |
Composición en ácidos grasos y vitamina E de la carne de corderos alimentados con niveles diferentes de concentrado |
Fecha de publicación : |
2007 |
Fuente / Imprenta : |
In: MONTOSSI, F.; SAÑUDO, C. (Eds.). Cooperación Hispano-Uruguaya. Diferenciación y valorización de la carne ovina y bovina del Uruguay en Europa: Influencia de Sistemas de Producción sobre Bienestar Animal, Atributos Sensoriales, Aceptabilidad y Percepción de Consumidores y Salud Humana Montevideo (Uruguay): INIA, 2007. |
Páginas : |
p. 97-102 |
Serie : |
(INIA Serie Técnica ; 168) |
ISBN : |
978-9974-38-239-8 |
ISSN : |
1688-9266 |
Idioma : |
Español |
Contenido : |
Se ha estudiado la composición en ácidos grasos y vitamina E de la carne de corderos que recibieron distintos aportes de concentrado durante el periodo de engorde: pastoreo sin concentrado, pastoreo con dos niveles de suplementación de concentrado (0.6 y 1.2% del peso vivo) y concentrado a voluntad en corrales. Los resultados obtenidos mostraron una disminución de la proporción de ácidos grasos saturados y poliinsaturados y un aumento en la de monoinsaturados a mayores
niveles de suplementación con concentrado. La disminución de la proporción de ácidos grasos poliinsaturados observada en los animales suplementados se debió
principalmente a la reducción en ácidos grasos poliinsaturados de la serie n3, en especial el linolénico. Por esta razón, la relación n6/n3 fue superior, y por tanto
menos recomendable del punto de vista de una dieta saludable, en los animales que recibieron concentrado a voluntad respecto a los otros tratamientos a pastoreo
con o sin concentrado. El contenido en vitamina E fue similar entre los animales que consumieron forraje mientras que estuvo muy reducido en los corderos que no
pastorearon. |
Palabras claves : |
ÁCIDOS GRASOS; CARNE DE CORDERO; GRASA INTRAMUSCULAR; VITAMINA E. |
Thesagro : |
ACIDOS; CARNE; CORDERO; PRODUCCION ANIMAL; URUGUAY. |
Asunto categoría : |
-- L01 Ganadería |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/7804/1/st-168-2007-p.97-102.pdf
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Marc : |
LEADER 02313naa a2200313 a 4500 001 1008040 005 2018-02-03 008 2007 bl uuuu u00u1 u #d 020 $a978-9974-38-239-8 022 $a1688-9266 100 1 $aCAÑEQUE, V. 245 $aComposición en ácidos grasos y vitamina E de la carne de corderos alimentados con niveles diferentes de concentrado 260 $c2007 300 $ap. 97-102 490 $a(INIA Serie Técnica ; 168) 520 $aSe ha estudiado la composición en ácidos grasos y vitamina E de la carne de corderos que recibieron distintos aportes de concentrado durante el periodo de engorde: pastoreo sin concentrado, pastoreo con dos niveles de suplementación de concentrado (0.6 y 1.2% del peso vivo) y concentrado a voluntad en corrales. Los resultados obtenidos mostraron una disminución de la proporción de ácidos grasos saturados y poliinsaturados y un aumento en la de monoinsaturados a mayores niveles de suplementación con concentrado. La disminución de la proporción de ácidos grasos poliinsaturados observada en los animales suplementados se debió principalmente a la reducción en ácidos grasos poliinsaturados de la serie n3, en especial el linolénico. Por esta razón, la relación n6/n3 fue superior, y por tanto menos recomendable del punto de vista de una dieta saludable, en los animales que recibieron concentrado a voluntad respecto a los otros tratamientos a pastoreo con o sin concentrado. El contenido en vitamina E fue similar entre los animales que consumieron forraje mientras que estuvo muy reducido en los corderos que no pastorearon. 650 $aACIDOS 650 $aCARNE 650 $aCORDERO 650 $aPRODUCCION ANIMAL 650 $aURUGUAY 653 $aÁCIDOS GRASOS 653 $aCARNE DE CORDERO 653 $aGRASA INTRAMUSCULAR 653 $aVITAMINA E 700 1 $aDE LA FUENTE, J. 700 1 $aDÍAZ, M. T. 700 1 $aALVAREZ, I. 773 $tIn: MONTOSSI, F.; SAÑUDO, C. (Eds.). Cooperación Hispano-Uruguaya. Diferenciación y valorización de la carne ovina y bovina del Uruguay en Europa: Influencia de Sistemas de Producción sobre Bienestar Animal, Atributos Sensoriales, Aceptabilidad y Percepción de Consumidores y Salud Humana Montevideo (Uruguay): INIA, 2007.
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