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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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Registros recuperados : 3 | |
2. | | PIAGGIO, L.; QUINTANS, G.; SAN JULIÁN, R.; FERREIRA, G.; ITHURRALDE, J.; FIERRO, S.; PEREIRA, A.S.C.; BALDI, F.; BANCHERO, G. Growth, meat and feed efficiency traits of lambs born to ewes submitted to energy restriction during mid-gestation. Animal, 2018, v. 12, no. 2, p. 256-264. Article history: Received: 17 October 2016 // Accepted: 24 May 2017; First published online 24 July 2017.Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA La Estanzuela; INIA Tacuarembó; INIA Treinta y Tres. |
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3. | | NAVAJAS, E.; VELAZCO, J.I.; SOTELO, J.; NOYA, H.; CASAL, A.; GIANOLA, D.; PERAZA, P.; BIELLI, A.; ITHURRALDE, J.; GENOVESE, P.; PÉREZ, R.; CANTALAPIEDRA, G.; AGUILAR, I.; LEMA, O.M.; RAVAGNOLO, O.; DEVINCENZI, T.; CARRACELAS, B.; DE SOUZA, G.; CIAPPESONI, G.; BRITO, G.; LUZARDO, S. Plataforma de Fenotipado intensivo - Kiyú. Anuario Hereford (Montevideo), 2020, p. 210-213.Biblioteca(s): INIA La Estanzuela; INIA Tacuarembó. |
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Registros recuperados : 3 | |
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