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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
11/11/2019 |
Actualizado : |
21/05/2020 |
Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
Autor : |
ITHURRALDE, J.; ABUD, M.J.; GENOVESE, P.; CORRALES, F.; PÉREZ-CLARIGET, R.; BIELLI, A. |
Afiliación : |
J. ITHURRALDE, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Montevideo, Uruguay.; M.J. ABUD, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Montevideo, Uruguay.; P. GENOVESE, Departamento de Morfología y Desarrollo, Facultad de Veterinaria, Montevideo, Uruguay.; F. CORRALES, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Montevideo, Uruguay.; R. PÉREZ-CLARIGET, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Montevideo, Uruguay.; A. BIELLI, Departamento de Morfología y Desarrollo. Facultad de Veterinaria, Montevideo, Uruguay. |
Título : |
Una menor oferta de campo natural gestacional afecta el desarrollo muscular fetal-neonatal y repercute sobre el peso y la composición fibrilar en corderos pesados. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
In: QUINTANS, G.; IEWDIUKOW, M. (Ed.). Primer Seminario Técnico de Programación Fetal. Montevideo (UY): INIA, 2019. p. 135-145. |
Serie : |
(INIA Serie Técnica; 252) |
ISBN : |
978-9974-38-436-1 |
ISSN : |
1688-9266 |
Idioma : |
Español |
Contenido : |
ABSTRACT
The present study evaluated the effects of maternal undernutrition induced by a lower natural pasture allowance during gestation on the histological characteristics of fetal, neonatal and adult Semitendinosus ovine muscle. Two experiments were carried out.
In experiment 1, ewes were assigned to two nutritional treatments from 23 days before conception until day 123 of gestation: High pasture allowance (HPA) ewes grazed on natural grasslands at 10-12 kg dry matter (DM)/100 kg of live weight (LW)/day, while low pasture allowance (LPA) ewes grazed at 5-8 kg DM /100 kg of LW/day. In experiment 2, ewes were assigned to two natural pasture allowances between days 30 and 143 of gestation: HPA ewes grazed on 14-20 kg of DM/100kg of LW/day; while LPA ewes grazed on 6?10 kg of DM/100 kg of LW/day.
In experiment 1, samples were taken from 70-day old fetuses and newborn lambs to evaluate muscle histology, while in experiment 2 samples were taken from 200-day old heavy-lambs which were equally ad libitum fed from lambing until slaughtering. Maternal undernutrition reduced the number of secondary fibers and the number of nuclei/ fasciculi in fetal muscles. Maternal undernutrition reduced the mean fiber diameter and the number of nuclei per fiber and increased the proportion of non-muscle tissue in newborn lambs. Furthermore, maternal undernutrition reduced the weight and increased the proportion of oxidative fibers in the Semitendinosus of heavy-lambs. Our results suggest that a lower maternal pasture allowance during gestation affects myogenesis with possible future effects over meatproducing performance. MenosABSTRACT
The present study evaluated the effects of maternal undernutrition induced by a lower natural pasture allowance during gestation on the histological characteristics of fetal, neonatal and adult Semitendinosus ovine muscle. Two experiments were carried out.
In experiment 1, ewes were assigned to two nutritional treatments from 23 days before conception until day 123 of gestation: High pasture allowance (HPA) ewes grazed on natural grasslands at 10-12 kg dry matter (DM)/100 kg of live weight (LW)/day, while low pasture allowance (LPA) ewes grazed at 5-8 kg DM /100 kg of LW/day. In experiment 2, ewes were assigned to two natural pasture allowances between days 30 and 143 of gestation: HPA ewes grazed on 14-20 kg of DM/100kg of LW/day; while LPA ewes grazed on 6?10 kg of DM/100 kg of LW/day.
In experiment 1, samples were taken from 70-day old fetuses and newborn lambs to evaluate muscle histology, while in experiment 2 samples were taken from 200-day old heavy-lambs which were equally ad libitum fed from lambing until slaughtering. Maternal undernutrition reduced the number of secondary fibers and the number of nuclei/ fasciculi in fetal muscles. Maternal undernutrition reduced the mean fiber diameter and the number of nuclei per fiber and increased the proportion of non-muscle tissue in newborn lambs. Furthermore, maternal undernutrition reduced the weight and increased the proportion of oxidative fibers in the Semitendinosus of heavy-lambs. Our results suggest that a ... Presentar Todo |
Palabras claves : |
CALIDAD DE CARNE; MEAT QUALITY; MIOGÉNESIS; MYOGENESIS; OVINOS; SHEEP; TIPIFICACIÓN FIBRILAR. |
Asunto categoría : |
L51 Fisiología Animal - Nutrición |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13794/1/St-252-p-135-145-Ithurralde.pdf
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Marc : |
LEADER 02621naa a2200301 a 4500 001 1060411 005 2020-05-21 008 2019 bl uuuu u00u1 u #d 020 $a978-9974-38-436-1 022 $a1688-9266 100 1 $aITHURRALDE, J. 245 $aUna menor oferta de campo natural gestacional afecta el desarrollo muscular fetal-neonatal y repercute sobre el peso y la composición fibrilar en corderos pesados.$h[electronic resource] 260 $c2019 490 $a(INIA Serie Técnica; 252) 520 $aABSTRACT The present study evaluated the effects of maternal undernutrition induced by a lower natural pasture allowance during gestation on the histological characteristics of fetal, neonatal and adult Semitendinosus ovine muscle. Two experiments were carried out. In experiment 1, ewes were assigned to two nutritional treatments from 23 days before conception until day 123 of gestation: High pasture allowance (HPA) ewes grazed on natural grasslands at 10-12 kg dry matter (DM)/100 kg of live weight (LW)/day, while low pasture allowance (LPA) ewes grazed at 5-8 kg DM /100 kg of LW/day. In experiment 2, ewes were assigned to two natural pasture allowances between days 30 and 143 of gestation: HPA ewes grazed on 14-20 kg of DM/100kg of LW/day; while LPA ewes grazed on 6?10 kg of DM/100 kg of LW/day. In experiment 1, samples were taken from 70-day old fetuses and newborn lambs to evaluate muscle histology, while in experiment 2 samples were taken from 200-day old heavy-lambs which were equally ad libitum fed from lambing until slaughtering. Maternal undernutrition reduced the number of secondary fibers and the number of nuclei/ fasciculi in fetal muscles. Maternal undernutrition reduced the mean fiber diameter and the number of nuclei per fiber and increased the proportion of non-muscle tissue in newborn lambs. Furthermore, maternal undernutrition reduced the weight and increased the proportion of oxidative fibers in the Semitendinosus of heavy-lambs. Our results suggest that a lower maternal pasture allowance during gestation affects myogenesis with possible future effects over meatproducing performance. 653 $aCALIDAD DE CARNE 653 $aMEAT QUALITY 653 $aMIOGÉNESIS 653 $aMYOGENESIS 653 $aOVINOS 653 $aSHEEP 653 $aTIPIFICACIÓN FIBRILAR 700 1 $aABUD, M.J. 700 1 $aGENOVESE, P. 700 1 $aCORRALES, F. 700 1 $aPÉREZ-CLARIGET, R. 700 1 $aBIELLI, A. 773 $tIn: QUINTANS, G.; IEWDIUKOW, M. (Ed.). Primer Seminario Técnico de Programación Fetal. Montevideo (UY): INIA, 2019. p. 135-145.
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INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
27/02/2018 |
Actualizado : |
27/02/2018 |
Tipo de producción científica : |
Presentaciones Orales |
Autor : |
INIA (INSTITUTO NACIONAL DE INVESTIGACIÓN AGROPECUARIA); ESTABLECIMIENTO EL JUNCO (DONISTAR S.C.); SUL (SECRETARIADO URUGUAYO DE LA LANA). |
Título : |
7a. edición Jornada de Riego 2018: "Riego por Superficie Tecnificado en Pasturas y Cultivos". [sitio web] |
Complemento del título : |
¿Productividad vs. Sustentabilidad? |
Fecha de publicación : |
2018 |
Fuente / Imprenta : |
Salto: INIA, 2018. |
Idioma : |
Español |
Notas : |
A través del sitio web puede acceder a los documentos, presentaciones y ediciones anteriores. |
Contenido : |
Desde el sitio web puede acceder a:
Video Resumen - VII Jornada Riego.
Entrevista Ing. Agr. Mariana Espino.
Entrevista Ing. Agr. Fabio Montossi.
Posters: Alvaro Otero, Ignacio Buffa, Gabriela Eguren, Julian Ramos.
Programa y Guía de Campo.
Jornadas anteriores |
Thesagro : |
PASTURAS; RIEGO. |
Asunto categoría : |
-- |
URL : |
http://www.inia.uy/estaciones-experimentales/direcciones-regionales/inia-salto-grande/vii-jornada-de-riego-2018
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Marc : |
LEADER 00923nam a2200169 a 4500 001 1058163 005 2018-02-27 008 2018 bl uuuu u00u1 u #d 100 1 $aINIA (INSTITUTO NACIONAL DE INVESTIGACIÓN AGROPECUARIA) 245 $a7a. edición Jornada de Riego 2018$b"Riego por Superficie Tecnificado en Pasturas y Cultivos". [sitio web]$h[electronic resource] 260 $aSalto: INIA$c2018 500 $aA través del sitio web puede acceder a los documentos, presentaciones y ediciones anteriores. 520 $aDesde el sitio web puede acceder a: Video Resumen - VII Jornada Riego. Entrevista Ing. Agr. Mariana Espino. Entrevista Ing. Agr. Fabio Montossi. Posters: Alvaro Otero, Ignacio Buffa, Gabriela Eguren, Julian Ramos. Programa y Guía de Campo. Jornadas anteriores 650 $aPASTURAS 650 $aRIEGO 700 1 $aESTABLECIMIENTO EL JUNCO (DONISTAR S.C.) 700 1 $aSUL (SECRETARIADO URUGUAYO DE LA LANA).
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