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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
02/01/2017 |
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Actualizado : |
02/01/2017 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
FIERRO, S.; VIÑOLES, C.; OLIVERA-MUZANTE, J. |
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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). |
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Título : |
Long term prostaglandin based-protocols improve the reproductive performance after timed artificial insemination in sheep. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Theriogenology, 2017, v. 90, p. 109-113. |
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DOI : |
10.1016/j.theriogenology.2016.11.031 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 25 April 2016; Received in revised form; 28 September 2016; Accepted 30 November 2016; Available online 2 December 2016 |
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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 |
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Palabras claves : |
EWE; FERTILITY; OESTRUS SYNCHRONIZATION; OVULATION RATE; PROTAGLANDIN; TIMED ARTIFICAL INSEMINATION. |
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Thesagro : |
OVEJA; OVINOS. |
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Asunto categoría : |
-- |
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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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Registro original : |
INIA Las Brujas (LB) |
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| Registros recuperados : 10 | |
| 6. |  | MINTEGUIAGA, M.A.; BANCHERO, G.; FIERRO, S.; ADRIEN, M.L.; OLIVERA-MUZANTE, J. Impact of focus feeding on reproductive losses, prolificacy, or fecundity of estrous synchronized ewes. Livestock Science, 2022, Volume 256, Article number 104817. doi: https://doi.org/10.1016/j.livsci.2021.104817 Article history:Received 4 June 2021/ Revised 24 December 2021/ Accepted 27 December 2021/ Available online 30 December 2021.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA La Estanzuela. |
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| 9. | | OLIVERA-MUZANTE, J.; FIERRO, S.; DURÁN, J.M.; ANTOGNAZZA, J.; SÁNCHEZ, S.; DUTRA, F.; BALDI, F.; BANCHERO, G. Birth, colostrum, and vigour traits of lambs born from Corriedale ewes grazing native pastures supplemented during the peripartum period. Small Ruminant Research, Volume 216, November 2022, 106795. Doi:https://doi.org/10.1016/j.smallrumres.2022.106795. Article history: Received 19 October 2021/ Revised 1 August 2022/ Accepted 11 August 2022/ Available online 17 August 2022/ Version of Record 29 August 2022.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA La Estanzuela. |
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| 10. | | OLIVERA-MUZANTE, J.; FIERRO, S.; ALABART, J.L.; CLARAMUNT, M.; MINTEGUIAGA, M.A.; AUNCHAYNA, G.; ERRANDONEA, N.; BANCHERO, G. Short-term dietary protein supplementation improves reproductive performance of estrous-synchronized ewes when there are long intervals of prostaglandin or progesterone-based treatments for timed AI. Animal Reproduction Science, July 2019, Volume 206, Pages 78-84. Article history: Received 21 November 2018 //Received in revised form 9 May 2019// Accepted23May2019//Available online 25 May 2019.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA La Estanzuela. |
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| Registros recuperados : 10 | |
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