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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
02/01/2017 |
Actualizado : |
02/01/2017 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
FIERRO, S.; VIÑOLES, C.; OLIVERA-MUZANTE, J. |
Afiliación : |
S. FIERRO, SUL (Secretariado Uruguayo de la Lana).; CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; J. OLIVERA-MUZANTE, Universidad de la República (UdelaR)/ Centro Universitario Regional Noroeste, Salto (CENUR). |
Título : |
Long term prostaglandin based-protocols improve the reproductive performance after timed artificial insemination in sheep. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
Theriogenology, 2017, v. 90, p. 109-113. |
DOI : |
10.1016/j.theriogenology.2016.11.031 |
Idioma : |
Inglés |
Notas : |
Article history: Received 25 April 2016; Received in revised form; 28 September 2016; Accepted 30 November 2016; Available online 2 December 2016 |
Contenido : |
ABSTRACT.
The aim of the experiment was to evaluate the reproductive performance of ewes synchronized with two doses of prostaglandin F2a (PG) at different intervals and inseminated at a fixed time. During the breeding season (April to June), 370 multiparous Corriedale ewes were assigned to five groups according to body condition score and body weight, and synchronized with two doses of PG administered 7, 10, 12, 14 or 16 days apart (groups PG7, PG10, PG12, PG14 or PG16; n ¼ 73, 76, 74, 72, 75; respectively). Cervical timed artificial insemination (Day 0) was performed at 48 ± 1.0 h (group PG7) or 56 ± 1.0 h (groups PG10, PG12, PG14 and PG16) after the second PG injection, with diluted fresh semen pooled from six adult rams. The percentage of ovulating ewes after the second PG injection and the ovulation rate (number of corpus luteum/ovulating ewes) were assessed on Day 10 by trans-rectal ultrasonography. The rate of non return to service (ewes not returning to service/inseminated ewes 100; NRR-21) was evaluated using painted vasectomized rams. Pregnancy rate (pregnant ewes/inseminated ewes 100) and prolificacy (foetuses/pregnant ewes) were determined on Day 60 by trans-abdominal ultrasonography. Higher NRR-21 and pregnancy rates was observed in groups PG12 (46.0%, 46.0%), PG14 (59.7%, 56.9%) and PG16 (58.7%, 56.0%) compared to PG7 (30.1%, 28.8%) and PG10 (30.3%, 30.3%; respectively P < 0.05). No significant differences were observed in the percentage of ovulating ewes, ovulation rate and prolificacy among groups (P > 0.05). Under the condition of this trial, 12, 14 or 16 days interval between PG injections enhances the pregnancy rate of ewes at cervical timed artificial insemination with fresh semen.
© 2016 Elsevier Inc. All rights reserved. MenosABSTRACT.
The aim of the experiment was to evaluate the reproductive performance of ewes synchronized with two doses of prostaglandin F2a (PG) at different intervals and inseminated at a fixed time. During the breeding season (April to June), 370 multiparous Corriedale ewes were assigned to five groups according to body condition score and body weight, and synchronized with two doses of PG administered 7, 10, 12, 14 or 16 days apart (groups PG7, PG10, PG12, PG14 or PG16; n ¼ 73, 76, 74, 72, 75; respectively). Cervical timed artificial insemination (Day 0) was performed at 48 ± 1.0 h (group PG7) or 56 ± 1.0 h (groups PG10, PG12, PG14 and PG16) after the second PG injection, with diluted fresh semen pooled from six adult rams. The percentage of ovulating ewes after the second PG injection and the ovulation rate (number of corpus luteum/ovulating ewes) were assessed on Day 10 by trans-rectal ultrasonography. The rate of non return to service (ewes not returning to service/inseminated ewes 100; NRR-21) was evaluated using painted vasectomized rams. Pregnancy rate (pregnant ewes/inseminated ewes 100) and prolificacy (foetuses/pregnant ewes) were determined on Day 60 by trans-abdominal ultrasonography. Higher NRR-21 and pregnancy rates was observed in groups PG12 (46.0%, 46.0%), PG14 (59.7%, 56.9%) and PG16 (58.7%, 56.0%) compared to PG7 (30.1%, 28.8%) and PG10 (30.3%, 30.3%; respectively P < 0.05). No significant differences were observed in the percentage of ovulating ewes, o... Presentar Todo |
Palabras claves : |
EWE; FERTILITY; OESTRUS SYNCHRONIZATION; OVULATION RATE; PROTAGLANDIN; TIMED ARTIFICAL INSEMINATION. |
Thesagro : |
OVEJA; OVINOS. |
Asunto categoría : |
-- |
Marc : |
LEADER 02707naa a2200265 a 4500 001 1056404 005 2017-01-02 008 2017 bl uuuu u00u1 u #d 024 7 $a10.1016/j.theriogenology.2016.11.031$2DOI 100 1 $aFIERRO, S. 245 $aLong term prostaglandin based-protocols improve the reproductive performance after timed artificial insemination in sheep.$h[electronic resource] 260 $c2017 500 $aArticle history: Received 25 April 2016; Received in revised form; 28 September 2016; Accepted 30 November 2016; Available online 2 December 2016 520 $aABSTRACT. The aim of the experiment was to evaluate the reproductive performance of ewes synchronized with two doses of prostaglandin F2a (PG) at different intervals and inseminated at a fixed time. During the breeding season (April to June), 370 multiparous Corriedale ewes were assigned to five groups according to body condition score and body weight, and synchronized with two doses of PG administered 7, 10, 12, 14 or 16 days apart (groups PG7, PG10, PG12, PG14 or PG16; n ¼ 73, 76, 74, 72, 75; respectively). Cervical timed artificial insemination (Day 0) was performed at 48 ± 1.0 h (group PG7) or 56 ± 1.0 h (groups PG10, PG12, PG14 and PG16) after the second PG injection, with diluted fresh semen pooled from six adult rams. The percentage of ovulating ewes after the second PG injection and the ovulation rate (number of corpus luteum/ovulating ewes) were assessed on Day 10 by trans-rectal ultrasonography. The rate of non return to service (ewes not returning to service/inseminated ewes 100; NRR-21) was evaluated using painted vasectomized rams. Pregnancy rate (pregnant ewes/inseminated ewes 100) and prolificacy (foetuses/pregnant ewes) were determined on Day 60 by trans-abdominal ultrasonography. Higher NRR-21 and pregnancy rates was observed in groups PG12 (46.0%, 46.0%), PG14 (59.7%, 56.9%) and PG16 (58.7%, 56.0%) compared to PG7 (30.1%, 28.8%) and PG10 (30.3%, 30.3%; respectively P < 0.05). No significant differences were observed in the percentage of ovulating ewes, ovulation rate and prolificacy among groups (P > 0.05). Under the condition of this trial, 12, 14 or 16 days interval between PG injections enhances the pregnancy rate of ewes at cervical timed artificial insemination with fresh semen. © 2016 Elsevier Inc. All rights reserved. 650 $aOVEJA 650 $aOVINOS 653 $aEWE 653 $aFERTILITY 653 $aOESTRUS SYNCHRONIZATION 653 $aOVULATION RATE 653 $aPROTAGLANDIN 653 $aTIMED ARTIFICAL INSEMINATION 700 1 $aVIÑOLES, C. 700 1 $aOLIVERA-MUZANTE, J. 773 $tTheriogenology, 2017$gv. 90, p. 109-113.
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
24/05/2023 |
Actualizado : |
24/05/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
Circulación / Nivel : |
Nacional - -- |
Autor : |
MEIKLE , A.; CAVESTANY, D.; CARRIQUIRY, M.; ADRIEN, M.L.; ARTEGOITIA, V.; PEREIRA, I.; RUPRECHTER, G.; PESSINA, P.; RAMA, G.; FERNÁNDEZ, A.; BREIJO, M.; LABORDE, D.; PRITSCH, O.; RAMOS, J.M.; DE TORRES, E.; NICOLINI, P.; MENDOZA, A.; DUTOUR, J.; FAJARDO, M.; ASTESSIANO, A.L.; OLAZÁBAL, L.; MATTIAUDA, D.; CHILIBROSTE, P. |
Afiliación : |
ANA MEIKLE, Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay; DANIEL CAVESTANY BOCKING, Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay; MARIANA CARRIQUIRY, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay; MARÍA DE LOURDES ADRIEN, Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay; VIRGINIA ARTEGOITIA, Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay; ISABEL PEREIRA, Veterinario profesión liberal Uruguay; GRETEL RUPRECHTER, Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay; PAULA PESSINA, Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay; GONZALO RAMA, Instituto Pasteur, Montevideo, Uruguay; ANDREA FERNÁNDEZ, Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay; MARTÍN BREIJO, Universidad de la República, Facultad de Medicina, Montevideo, Uruguay; DANIEL LABORDE, Veterinario profesión liberal Uruguay; OTTO PRITSCH, Universidad de la República, Facultad de Medicina, Montevideo, Uruguay; JUAN MANUEL RAMOS, Veterinario profesión liberal Uruguay; ELENA DE TORRES, Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay; PAULA NICOLINI, Universidad de la República, Facultad de Veterinaria, Montevideo, Uruguay; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOAQUÍN DUTOUR, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay; MAITE FAJARDO, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay; ANA LAURA ASTESSIANO, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay; LAURA OLAZÁBAL, Laboratorio Tecnológico del Uruguay; DIEGO MATTIAUDA, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay; PABLO CHILIBROSTE, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay. |
Título : |
Advances in knowledge of the dairy cow during the transition period in Uruguay: a multidisciplinary approach. Review. [Avances en el conocimiento de la vaca lechera durante el período de transición en Uruguay: un enfoque multidisciplinario]. [Special Issue 25 Years Agrociencia]. |
Complemento del título : |
Animal production and pastures. |
Fecha de publicación : |
2022 |
Fuente / Imprenta : |
Agrociencia Uruguay, 2022, vol. 26, NE2, e1110. doi: https://doi.org/10.31285/AGRO.26.1110 -- OPEN ACCESS. |
ISSN : |
2730-5066 |
DOI : |
10.31285/AGRO.26.1110 |
Idioma : |
Inglés |
Notas : |
Article history: Article originally published in: Agrociencia (Uruguay). 2013;17(1):141-152. doi: https://doi.org/10.31285/AGRO.17.528 -- License: This work is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/ ) |
Contenido : |
ABSTRACT.- The transition from pregnant non lactating condition to non pregnant lactating status is a period of dramatic changes for the cow, which has to adapt its metabolism to the strong requirements for milk production. From the equilibrium that the cow resolves this period will depend the capacity to maximize milk production and quality, to evade metabolic diseases and ensure the following pregnancy. The nutritional improvement, genetic selection and animal management have increase milk production in the last decades and this is associated with a decrease in the reproductive performance and in the increase of health diseases. This review summarizes the studies performed in the last years in Uruguay, with emphasis in nutritional management, ingestive behaviour, endocrine and molecular mechanisms of nutrient partitioning and its relation with fertility in dairy cows. Studies that investigate the productive efficiency of different dairy biotypes and breeds are reported. Studies in the cow´s health that identify the transition period as a risk factor for metabolic, infections and traumatic diseases are included. We conclude that studies that integrate problems of national relevance are the appropriate methodology to investigate complex biological systems as is the dairy cow during the transition period under grazing conditions. .-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. RSUMEN.- La transición del estado preñada no lactante al no preñado lactante es un período de cambios drásticos para la vaca, la cual debe adaptar su metabolismo a las fuertes exigencias que le demanda la producción. Del equilibrio con que la vaca resuelva este proceso dependerá la capacidad de maximizar la producción y la calidad de la leche, de evitar enfermedades metabólicas y asegurar la siguiente preñez. La mejora nutricional, la selección genética y el manejo animal han aumentado la producción de leche en las últimas décadas, y esto se asocia a una disminución del desempeño reproductivo y al aumento de problemas sanitarios. Esta revisión resume trabajos realizados en los últimos años en Uruguay, enfatizando en el manejo diferencial de nutrientes, la respuesta en comportamiento ingestivo, los mecanismos endocrino-moleculares de la partición de nutrientes y su relación con la fertilidad en vacas lecheras. Se reportan experimentos que estudian la eficiencia productiva de diferentes biotipos lecheros y razas. Se describen trabajos en salud que identifican el período de transición como período de riesgo a enfermedades metabólicas, infecto-contagiosas y traumáticas. Se con-cluye que los estudios integrados en problemas de relevancia nacional es la respuesta necesaria a sistemas biológicos complejos como lo es la vaca lechera durante el período de transición en pastoreo. Copyright (c) 2022 Agrociencia Uruguay MenosABSTRACT.- The transition from pregnant non lactating condition to non pregnant lactating status is a period of dramatic changes for the cow, which has to adapt its metabolism to the strong requirements for milk production. From the equilibrium that the cow resolves this period will depend the capacity to maximize milk production and quality, to evade metabolic diseases and ensure the following pregnancy. The nutritional improvement, genetic selection and animal management have increase milk production in the last decades and this is associated with a decrease in the reproductive performance and in the increase of health diseases. This review summarizes the studies performed in the last years in Uruguay, with emphasis in nutritional management, ingestive behaviour, endocrine and molecular mechanisms of nutrient partitioning and its relation with fertility in dairy cows. Studies that investigate the productive efficiency of different dairy biotypes and breeds are reported. Studies in the cow´s health that identify the transition period as a risk factor for metabolic, infections and traumatic diseases are included. We conclude that studies that integrate problems of national relevance are the appropriate methodology to investigate complex biological systems as is the dairy cow during the transition period under grazing conditions. .-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. RSUMEN.- La transición del estado preñada no lactante al no preñado lactante es un período de cambios drástico... Presentar Todo |
Palabras claves : |
Dairy cows; Grazing; Pastoreo; Período transición; Transition period; Vaca lechera. |
Asunto categoría : |
L01 Ganadería |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17172/1/2730-5066-1110.pdf
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Marc : |
LEADER 04666naa a2200493 a 4500 001 1064163 005 2023-05-24 008 2022 bl uuuu u00u1 u #d 022 $a2730-5066 024 7 $a10.31285/AGRO.26.1110$2DOI 100 1 $aMEIKLE , A. 245 $aAdvances in knowledge of the dairy cow during the transition period in Uruguay$ba multidisciplinary approach. Review. [Avances en el conocimiento de la vaca lechera durante el período de transición en Uruguay: un enfoque multidisciplinario]. [Special Issue 25 Years Agrociencia].$h[electronic resource] 260 $c2022 500 $aArticle history: Article originally published in: Agrociencia (Uruguay). 2013;17(1):141-152. doi: https://doi.org/10.31285/AGRO.17.528 -- License: This work is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/ ) 520 $aABSTRACT.- The transition from pregnant non lactating condition to non pregnant lactating status is a period of dramatic changes for the cow, which has to adapt its metabolism to the strong requirements for milk production. From the equilibrium that the cow resolves this period will depend the capacity to maximize milk production and quality, to evade metabolic diseases and ensure the following pregnancy. The nutritional improvement, genetic selection and animal management have increase milk production in the last decades and this is associated with a decrease in the reproductive performance and in the increase of health diseases. This review summarizes the studies performed in the last years in Uruguay, with emphasis in nutritional management, ingestive behaviour, endocrine and molecular mechanisms of nutrient partitioning and its relation with fertility in dairy cows. Studies that investigate the productive efficiency of different dairy biotypes and breeds are reported. Studies in the cow´s health that identify the transition period as a risk factor for metabolic, infections and traumatic diseases are included. We conclude that studies that integrate problems of national relevance are the appropriate methodology to investigate complex biological systems as is the dairy cow during the transition period under grazing conditions. .-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. RSUMEN.- La transición del estado preñada no lactante al no preñado lactante es un período de cambios drásticos para la vaca, la cual debe adaptar su metabolismo a las fuertes exigencias que le demanda la producción. Del equilibrio con que la vaca resuelva este proceso dependerá la capacidad de maximizar la producción y la calidad de la leche, de evitar enfermedades metabólicas y asegurar la siguiente preñez. La mejora nutricional, la selección genética y el manejo animal han aumentado la producción de leche en las últimas décadas, y esto se asocia a una disminución del desempeño reproductivo y al aumento de problemas sanitarios. Esta revisión resume trabajos realizados en los últimos años en Uruguay, enfatizando en el manejo diferencial de nutrientes, la respuesta en comportamiento ingestivo, los mecanismos endocrino-moleculares de la partición de nutrientes y su relación con la fertilidad en vacas lecheras. Se reportan experimentos que estudian la eficiencia productiva de diferentes biotipos lecheros y razas. Se describen trabajos en salud que identifican el período de transición como período de riesgo a enfermedades metabólicas, infecto-contagiosas y traumáticas. Se con-cluye que los estudios integrados en problemas de relevancia nacional es la respuesta necesaria a sistemas biológicos complejos como lo es la vaca lechera durante el período de transición en pastoreo. Copyright (c) 2022 Agrociencia Uruguay 653 $aDairy cows 653 $aGrazing 653 $aPastoreo 653 $aPeríodo transición 653 $aTransition period 653 $aVaca lechera 700 1 $aCAVESTANY, D. 700 1 $aCARRIQUIRY, M. 700 1 $aADRIEN, M.L. 700 1 $aARTEGOITIA, V. 700 1 $aPEREIRA, I. 700 1 $aRUPRECHTER, G. 700 1 $aPESSINA, P. 700 1 $aRAMA, G. 700 1 $aFERNÁNDEZ, A. 700 1 $aBREIJO, M. 700 1 $aLABORDE, D. 700 1 $aPRITSCH, O. 700 1 $aRAMOS, J.M. 700 1 $aDE TORRES, E. 700 1 $aNICOLINI, P. 700 1 $aMENDOZA, A. 700 1 $aDUTOUR, J. 700 1 $aFAJARDO, M. 700 1 $aASTESSIANO, A.L. 700 1 $aOLAZÁBAL, L. 700 1 $aMATTIAUDA, D. 700 1 $aCHILIBROSTE, P. 773 $tAgrociencia Uruguay, 2022, vol. 26, NE2, e1110. doi: https://doi.org/10.31285/AGRO.26.1110 -- OPEN ACCESS.
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