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Biblioteca (s) : |
INIA La Estanzuela; INIA Treinta y Tres. |
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Fecha : |
11/11/2019 |
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Actualizado : |
03/08/2021 |
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Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
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Autor : |
LÓPEZ-MAZZ, C.; REGUEIRO, M.; BALDI, F.; QUINTANS, G.; BANCHERO, G. |
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Afiliación : |
CARLOS LÓPEZ-MAZZ, Departamento de Producción Animal y Pasturas. Facultad de Agronomía, Montevideo, Uruguay.; M. REGUEIRO, Departamento de Producción Animal y Pasturas. Facultad de Agronomía, Montevideo, Uruguay.; F. BALDI, Facultade de Ciencias Agrárias e Veterinárias, Jaboticabal, Sao Paulo, Brazil.; 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 : |
La esquila a los 50 días de gestación de ovejas en pastoreo afectó positivamente el peso corporal pero no parámetros reproductivos y de salud de los corderos machos durante los primeros 18 meses de edad. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
In: QUINTANS, G.; IEWDIUKOW, M. (Ed.). Primer Seminario Técnico de Programación Fetal. Montevideo (UY): INIA, 2019. p. 125-134. |
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Serie : |
(INIA Serie Técnica; 252) |
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ISBN : |
978-9974-38-436-1 |
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ISSN : |
1688-9266 |
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Idioma : |
Español |
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Contenido : |
ABSTRACT
This study evaluated the effects of shearing at 50 days of gestation on the productive, reproductive and response to a gastrointestinal parasite challenge of male offspring from weaning (104 d) to 18 months old. In total, 79 Polwarth male lambs were used, 44 single (S) and 35 twin (T) born to ewes either shorn at 50 days of pregnancy (PS, n =41) or shorn at 62 days post-partum (U, control, n = 38) resulting in four sub-groups: SPS: single male lambs born to ewes shorn at 50 days of pregnancy (n = 23), SU: single male lambs born to postpartumshorn ewes (n = 21), TPS: twin males lambs born to ewes shorn at 50 days of pregnancy (n = 18) or TU: twin female lambs born to postpartum shorn ewes (n = 17). The lambs were kept together on improved pasture throughout the entire experiment. Body weight, body condition score and fecal eggs count were recorded every 14 days from weaning to 18 months old.
Ultrasound measurements in vivo were performed at 12.5 months and 14.6 months old to estimate of ribeye area (REA) and backfat thickness (BFT) in the ongissimus dorsi muscle and the thickness of fat in the hip region (P8).
Furthermore, plasma testosterone concentration was determined once every two weeks to establish the age at onset of puberty. PS male lambs were heavier (P = 0,02) than U male lambs. Shearing treatment had no effect on none of the parameters of body development (P ˃ 0,05). However, REA (P = 0.06) and P8 (P = 0,02) were higher at 14.6 mo than 12.5 mo old. Testosterone concentration, age at puberty and testicular weight were not different (P ˃ 0,05) among treatments. Single male lambs reached puberty earlier (P = 0.06) than twin. Prepartum shearing did not affect the parasite egg count and the Famacha index. The study concludes that ewe shearing at 50 days of gestation positively influences the bodyweight of male offspring from weaning onwards but not the other evaluated traits MenosABSTRACT
This study evaluated the effects of shearing at 50 days of gestation on the productive, reproductive and response to a gastrointestinal parasite challenge of male offspring from weaning (104 d) to 18 months old. In total, 79 Polwarth male lambs were used, 44 single (S) and 35 twin (T) born to ewes either shorn at 50 days of pregnancy (PS, n =41) or shorn at 62 days post-partum (U, control, n = 38) resulting in four sub-groups: SPS: single male lambs born to ewes shorn at 50 days of pregnancy (n = 23), SU: single male lambs born to postpartumshorn ewes (n = 21), TPS: twin males lambs born to ewes shorn at 50 days of pregnancy (n = 18) or TU: twin female lambs born to postpartum shorn ewes (n = 17). The lambs were kept together on improved pasture throughout the entire experiment. Body weight, body condition score and fecal eggs count were recorded every 14 days from weaning to 18 months old.
Ultrasound measurements in vivo were performed at 12.5 months and 14.6 months old to estimate of ribeye area (REA) and backfat thickness (BFT) in the ongissimus dorsi muscle and the thickness of fat in the hip region (P8).
Furthermore, plasma testosterone concentration was determined once every two weeks to establish the age at onset of puberty. PS male lambs were heavier (P = 0,02) than U male lambs. Shearing treatment had no effect on none of the parameters of body development (P ˃ 0,05). However, REA (P = 0.06) and P8 (P = 0,02) were higher at 14.6 mo than 12.5 mo old. Te... Presentar Todo |
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Palabras claves : |
CORDEROS; CRECIMIENTO; ESQUILA TEMPRANA; REPRODUCCIÓN. |
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Asunto categoría : |
L53 Fisiología Animal - Reproducción |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13793/1/St-252-p-125-134-Lopez-Mazz.pdf
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Marc : |
LEADER 02848naa a2200253 a 4500
001 1061120
005 2021-08-03
008 2019 bl uuuu u00u1 u #d
020 $a978-9974-38-436-1
022 $a1688-9266
100 1 $aLÓPEZ-MAZZ, C.
245 $aLa esquila a los 50 días de gestación de ovejas en pastoreo afectó positivamente el peso corporal pero no parámetros reproductivos y de salud de los corderos machos durante los primeros 18 meses de edad.$h[electronic resource]
260 $c2019
490 $a(INIA Serie Técnica; 252)
520 $aABSTRACT This study evaluated the effects of shearing at 50 days of gestation on the productive, reproductive and response to a gastrointestinal parasite challenge of male offspring from weaning (104 d) to 18 months old. In total, 79 Polwarth male lambs were used, 44 single (S) and 35 twin (T) born to ewes either shorn at 50 days of pregnancy (PS, n =41) or shorn at 62 days post-partum (U, control, n = 38) resulting in four sub-groups: SPS: single male lambs born to ewes shorn at 50 days of pregnancy (n = 23), SU: single male lambs born to postpartumshorn ewes (n = 21), TPS: twin males lambs born to ewes shorn at 50 days of pregnancy (n = 18) or TU: twin female lambs born to postpartum shorn ewes (n = 17). The lambs were kept together on improved pasture throughout the entire experiment. Body weight, body condition score and fecal eggs count were recorded every 14 days from weaning to 18 months old. Ultrasound measurements in vivo were performed at 12.5 months and 14.6 months old to estimate of ribeye area (REA) and backfat thickness (BFT) in the ongissimus dorsi muscle and the thickness of fat in the hip region (P8). Furthermore, plasma testosterone concentration was determined once every two weeks to establish the age at onset of puberty. PS male lambs were heavier (P = 0,02) than U male lambs. Shearing treatment had no effect on none of the parameters of body development (P ˃ 0,05). However, REA (P = 0.06) and P8 (P = 0,02) were higher at 14.6 mo than 12.5 mo old. Testosterone concentration, age at puberty and testicular weight were not different (P ˃ 0,05) among treatments. Single male lambs reached puberty earlier (P = 0.06) than twin. Prepartum shearing did not affect the parasite egg count and the Famacha index. The study concludes that ewe shearing at 50 days of gestation positively influences the bodyweight of male offspring from weaning onwards but not the other evaluated traits
653 $aCORDEROS
653 $aCRECIMIENTO
653 $aESQUILA TEMPRANA
653 $aREPRODUCCIÓN
700 1 $aREGUEIRO, M.
700 1 $aBALDI, F.
700 1 $aQUINTANS, G.
700 1 $aBANCHERO, G.
773 $tIn: QUINTANS, G.; IEWDIUKOW, M. (Ed.). Primer Seminario Técnico de Programación Fetal. Montevideo (UY): INIA, 2019. p. 125-134.
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Registro original : |
INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
02/06/2017 |
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Actualizado : |
02/06/2017 |
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Tipo de producción científica : |
Abstracts/Resúmenes |
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Autor : |
MONTOSSI, F.; LUZARDO, S.; CUADRO, R.; BRITO, G.; SAN JULIÁN, R.; SILVEIRA, C.; DEL CAMPO, M. |
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Afiliación : |
FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SANTIAGO FELIPE LUZARDO VILLAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WASHINGTON ROBIN CUADRO LOPEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO WALTER BRITO DIAZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBERTO SAN JULIAN SANCHEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINA INES SILVEIRA ROJAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARCIA DEL CAMPO GIGENA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Could restricted grain supplementation modify fatty acid composition in beef meat under grazing conditions? |
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Fecha de publicación : |
2010 |
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Fuente / Imprenta : |
In:International Congress of Meat Science and Technology (ICoMST), 56o., Corea, 2010. |
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Idioma : |
Inglés |
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Notas : |
Abstracts session B: Meat and health. |
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Contenido : |
Restricted grain supplementation effects on animal performance, carcass weight, meat quality and fatty acids profile were investigated on finnishing steers under grazing conditions, focused on their influences on human health. During 194 days (from June to December 2008), 24 Uruguayan Hereford steers were assigned to different treatments (T) considering herbage allowance (HA) and level of grain (ground sorghum) supplementation (G) according to the liveweight (LW) of the animals.
Treatments were a combination of pastures (P) and G levels, where T1 (P at 4% HA of LW); T2 (P at 2% HA of LW + G at 0.8% of LW); T3 (P at 2% HA of LW + G at 1.6% of LW) were applied. It was proven that increasing levels of G supplementation improved animal peformance and carcass weight, having minor influences on meat quality traits (pH, meat colour, tenderness). Intramuscular fat was not affected by T. The concentrations of linolenic (18:3 n-3) followed the pattern of T1=T2>T3. In the
case of linoleic acid (18:2 n-6), T2 had higher concentrations than T1 and T3. The long chain arachidonic (20:4 n-6), eicosapentaenoic-EPA (20:5 n-3) and docosapentaenoic-DPA (22:5 n-3) fatty acids were significant lower for T3 in comparison with T2. Human health recommendations for PUFA:SFA and ?6:?3 ratios are over 0.45 and below 4.0, respectively. The PUFA:SFA ration fell into the range of 0.22 to 0.36, while ?6:?3 ratio was always below 0.4. However, T2 had better PUFA:SFA
ratio than the rest of the treatments, while T1 produced the best ?6:?3 ratio. It is highlighted the potential utilization of restricted amounts of grain supplementation G in beef finishing system under grazing conditions for increasing productivity as well as promoting healthy meat. This proposal could have productive and economical benefits for livestock farmers in extensive regions of Uruguay and for the beef industry. MenosRestricted grain supplementation effects on animal performance, carcass weight, meat quality and fatty acids profile were investigated on finnishing steers under grazing conditions, focused on their influences on human health. During 194 days (from June to December 2008), 24 Uruguayan Hereford steers were assigned to different treatments (T) considering herbage allowance (HA) and level of grain (ground sorghum) supplementation (G) according to the liveweight (LW) of the animals.
Treatments were a combination of pastures (P) and G levels, where T1 (P at 4% HA of LW); T2 (P at 2% HA of LW + G at 0.8% of LW); T3 (P at 2% HA of LW + G at 1.6% of LW) were applied. It was proven that increasing levels of G supplementation improved animal peformance and carcass weight, having minor influences on meat quality traits (pH, meat colour, tenderness). Intramuscular fat was not affected by T. The concentrations of linolenic (18:3 n-3) followed the pattern of T1=T2>T3. In the
case of linoleic acid (18:2 n-6), T2 had higher concentrations than T1 and T3. The long chain arachidonic (20:4 n-6), eicosapentaenoic-EPA (20:5 n-3) and docosapentaenoic-DPA (22:5 n-3) fatty acids were significant lower for T3 in comparison with T2. Human health recommendations for PUFA:SFA and ?6:?3 ratios are over 0.45 and below 4.0, respectively. The PUFA:SFA ration fell into the range of 0.22 to 0.36, while ?6:?3 ratio was always below 0.4. However, T2 had better PUFA:SFA
ratio than the rest of the treatments, wh... Presentar Todo |
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Palabras claves : |
BEEF; FATTY ACID COMPOSITION; GRAIN; MEAT QUALITY; PASTURE. |
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Thesagro : |
CALIDAD DE CARNE; PASTURAS. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/6797/1/Could-restricted.pdf
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Marc : |
LEADER 02718nam a2200277 a 4500
001 1057236
005 2017-06-02
008 2010 bl uuuu u01u1 u #d
100 1 $aMONTOSSI, F.
245 $aCould restricted grain supplementation modify fatty acid composition in beef meat under grazing conditions?$h[electronic resource]
260 $aIn:International Congress of Meat Science and Technology (ICoMST), 56o., Corea$c2010
500 $aAbstracts session B: Meat and health.
520 $aRestricted grain supplementation effects on animal performance, carcass weight, meat quality and fatty acids profile were investigated on finnishing steers under grazing conditions, focused on their influences on human health. During 194 days (from June to December 2008), 24 Uruguayan Hereford steers were assigned to different treatments (T) considering herbage allowance (HA) and level of grain (ground sorghum) supplementation (G) according to the liveweight (LW) of the animals. Treatments were a combination of pastures (P) and G levels, where T1 (P at 4% HA of LW); T2 (P at 2% HA of LW + G at 0.8% of LW); T3 (P at 2% HA of LW + G at 1.6% of LW) were applied. It was proven that increasing levels of G supplementation improved animal peformance and carcass weight, having minor influences on meat quality traits (pH, meat colour, tenderness). Intramuscular fat was not affected by T. The concentrations of linolenic (18:3 n-3) followed the pattern of T1=T2>T3. In the case of linoleic acid (18:2 n-6), T2 had higher concentrations than T1 and T3. The long chain arachidonic (20:4 n-6), eicosapentaenoic-EPA (20:5 n-3) and docosapentaenoic-DPA (22:5 n-3) fatty acids were significant lower for T3 in comparison with T2. Human health recommendations for PUFA:SFA and ?6:?3 ratios are over 0.45 and below 4.0, respectively. The PUFA:SFA ration fell into the range of 0.22 to 0.36, while ?6:?3 ratio was always below 0.4. However, T2 had better PUFA:SFA ratio than the rest of the treatments, while T1 produced the best ?6:?3 ratio. It is highlighted the potential utilization of restricted amounts of grain supplementation G in beef finishing system under grazing conditions for increasing productivity as well as promoting healthy meat. This proposal could have productive and economical benefits for livestock farmers in extensive regions of Uruguay and for the beef industry.
650 $aCALIDAD DE CARNE
650 $aPASTURAS
653 $aBEEF
653 $aFATTY ACID COMPOSITION
653 $aGRAIN
653 $aMEAT QUALITY
653 $aPASTURE
700 1 $aLUZARDO, S.
700 1 $aCUADRO, R.
700 1 $aBRITO, G.
700 1 $aSAN JULIÁN, R.
700 1 $aSILVEIRA, C.
700 1 $aDEL CAMPO, M.
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