Follicular dynamic and relation cortisol-ovulatory response in cows treated with progesterone
The objetives of the study were to evaluate whether treatment with intravaginal device (IVD) with different amount of progesterone (P4) affect P4 plasmatic concentration, follicular dynamic and ovulation rate; also, to determe the relationship between cortisol plasma level and ovulatory response. No...
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2021
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I48-R154-article-47272025-02-12T21:59:21Z Follicular dynamic and relation cortisol-ovulatory response in cows treated with progesterone Dinámica folicular y relación cortisol-respuesta ovulatoria en vacas tratadas con diferentes cantidades de progesterona González, S. A. Cabodevila, J. A. Callejas, S. S. cows progestorone intravaginal device cortisol ovulation vacas progesterona dispostivo intravaginal cortisol ovulación. The objetives of the study were to evaluate whether treatment with intravaginal device (IVD) with different amount of progesterone (P4) affect P4 plasmatic concentration, follicular dynamic and ovulation rate; also, to determe the relationship between cortisol plasma level and ovulatory response. Non-suckling, cycling B. taurus beef cows were randomly allocated to groups: T0.558 (n=10) on day 0, IVD with 0.558 g of P4 was inserted and oestradiol benzoate (OEB) was administered. On day 8, IVD removal and D-cloprostenol administration. On day 9, OEB administration; T1 (n=10), same protocol but an IVD with 1 g of P4; T1.3 (n=10): same protocol but an IVD with 1.3 g of P4. The ovulation rate (66.7%), diameter of dominant follicle and P4 levels were not different among treatments (p>0.05). Cortisol levels were higher in cows that not ovulated on days 8 and 9 (p<0.05). In conclusion, IVD with 0.558, 1 and 1.3 g produce similar P4 levels and ovarian changes. Cortisol levels were higher in animals that did not ovulate, this being a possible indicator of stress, which can affect reproductive efficiency. El objetivo del presente estudio fue evaluar si el tratamiento con dispositivos intravaginales (DIV) con diferentes cantidades de progesterona (P4) afectaba la concentración plasmática de dicha hormona, la dinámica folicular y el porcentaje de ovulación en vacas. Además, se fijó como objetivo secundario ver si existía relación entre el nivel plasmático de cortisol y la respuesta ovulatoria. Vacas secas, cíclicas, Bos taurus, fueron asignadas aleatoriamente a 3 grupos que recibieron los siguientes tratamientos: 1) T0,558 (n=10), en el día 0 se colocó un DIV con 0,558 g de progesterona más benzoato de estradiol (BE). En el día 8 se retiró el dispositivo y se administró D-cloprostenol. En el día 9 se administró BE. 2) T1 (n=10) y T1,3 (n=10), similares al grupo T0,558, con la salvedad que se utilizó un DIV con 1 g y 1,3 g de P4, respectivamente. No se observaron efectos del tratamiento sobre el porcentaje de ovulación (66,7%), diámetro del folículo dominante ovulatorio y niveles de P4 plasmática. La concentración de cortisol en plasma fue mayor en las vacas que no ovularon. Se concluye que la cantidad de P4 contenida en los DIV evaluados no afecta la concentración de dicha hormona en plasma ni la dinámica folicular. El nivel de cortisol se relaciona con la respuesta ovulatoria y éste podría ser un indicador de estrés, el cual podría afectar la eficiencia reproductiva. Universidad Nacional del Nordeste 2021-04-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/vet/article/view/4727 10.30972/vet.3124727 Revista Veterinaria; Vol. 31 Núm. 2 (2020); 109-114 1669-6840 1668-4834 spa https://revistas.unne.edu.ar/index.php/vet/article/view/4727/4427 Derechos de autor 2021 S. A. González, J. A. Cabodevila, S. S. Callejas https://creativecommons.org/licenses/by-nc/4.0 |
institution |
Universidad Nacional del Nordeste |
institution_str |
I-48 |
repository_str |
R-154 |
container_title_str |
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) |
language |
Español |
format |
Artículo revista |
topic |
cows progestorone intravaginal device cortisol ovulation vacas progesterona dispostivo intravaginal cortisol ovulación. |
spellingShingle |
cows progestorone intravaginal device cortisol ovulation vacas progesterona dispostivo intravaginal cortisol ovulación. González, S. A. Cabodevila, J. A. Callejas, S. S. Follicular dynamic and relation cortisol-ovulatory response in cows treated with progesterone |
topic_facet |
cows progestorone intravaginal device cortisol ovulation vacas progesterona dispostivo intravaginal cortisol ovulación. |
author |
González, S. A. Cabodevila, J. A. Callejas, S. S. |
author_facet |
González, S. A. Cabodevila, J. A. Callejas, S. S. |
author_sort |
González, S. A. |
title |
Follicular dynamic and relation cortisol-ovulatory response in cows treated with progesterone |
title_short |
Follicular dynamic and relation cortisol-ovulatory response in cows treated with progesterone |
title_full |
Follicular dynamic and relation cortisol-ovulatory response in cows treated with progesterone |
title_fullStr |
Follicular dynamic and relation cortisol-ovulatory response in cows treated with progesterone |
title_full_unstemmed |
Follicular dynamic and relation cortisol-ovulatory response in cows treated with progesterone |
title_sort |
follicular dynamic and relation cortisol-ovulatory response in cows treated with progesterone |
description |
The objetives of the study were to evaluate whether treatment with intravaginal device (IVD) with different amount of progesterone (P4) affect P4 plasmatic concentration, follicular dynamic and ovulation rate; also, to determe the relationship between cortisol plasma level and ovulatory response. Non-suckling, cycling B. taurus beef cows were randomly allocated to groups: T0.558 (n=10) on day 0, IVD with 0.558 g of P4 was inserted and oestradiol benzoate (OEB) was administered. On day 8, IVD removal and D-cloprostenol administration. On day 9, OEB administration; T1 (n=10), same protocol but an IVD with 1 g of P4; T1.3 (n=10): same protocol but an IVD with 1.3 g of P4. The ovulation rate (66.7%), diameter of dominant follicle and P4 levels were not different among treatments (p>0.05). Cortisol levels were higher in cows that not ovulated on days 8 and 9 (p<0.05). In conclusion, IVD with 0.558, 1 and 1.3 g produce similar P4 levels and ovarian changes. Cortisol levels were higher in animals that did not ovulate, this being a possible indicator of stress, which can affect reproductive efficiency. |
publisher |
Universidad Nacional del Nordeste |
publishDate |
2021 |
url |
https://revistas.unne.edu.ar/index.php/vet/article/view/4727 |
work_keys_str_mv |
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first_indexed |
2025-05-17T05:10:08Z |
last_indexed |
2025-05-17T05:10:08Z |
_version_ |
1832343158392881152 |