Ovarian synchronisation in wood bison (Bison bison athabascae) during the anovulatory season

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dc.contributor.authorPalomino Cano, Jesús Manueles_ES
dc.contributor.authorMcCorkell, Robert B.es_ES
dc.contributor.authorWoodbury, Murray R.es_ES
dc.contributor.authorAdams, Gregg P.es_ES
dc.date.accessioned2023-04-12T12:30:17Z
dc.date.available2023-04-12T12:30:17Z
dc.date.issued2013
dc.description.abstractTwo experiments were performed in wood bison during the anovulatory season to establish an effective protocol for ovarian synchronisation. In an untreated control phase, bison cows (n = 19) were examined daily to establish the interval to new follicular wave emergence (4.9 ± 0.7 days) for the purposes of comparison with the experimental treatments. In Experiment 1, bison were treated by transvaginal ultrasound-guided follicular ablation (n = 9) or with 2 mg, i.m., 17β-oestradiol (n = 10). In Experiment 2, bison were treated by follicular ablation (n = 9) or with 2 mg, i.m., 17β-oestradiol +100 mg, i.m., progesterone (n = 10). In Experiment 1, the interval to new wave emergence for control, follicular ablation and 17β-oestradiol-treated groups was 4.9 ± 0.7, 1.1 ± 0.1 and 3.1 ± 0.4 days, respectively (P < 0.05). The degree of synchrony was 2.4 ± 0.4, 0.2 ± 0.1 and 0.8 ± 0.2 days, respectively (P < 0.05). In Experiment 2, the interval to new wave emergence for control, follicular ablation and 17β-oestradiol + progesterone-treated groups was 4.9 ± 0.7, 1.2 ± 0.2 and 3.3 ± 0.3 days, respectively (P < 0.05), and the degree of synchrony was 2.4 ± 0.4, 0.2 ± 0.1, and 0.8 ± 0.2 days, respectively (P < 0.05). The degree of synchrony did not differ between ablation and hormone treatment groups in either experiment, but was greater in treatment groups than in the untreated control phase. Both follicular ablation and hormone treatment shortened and decreased the variability in the interval to follicular wave emergence in bison, but wave emergence occurred earlier after follicular ablation.es_ES
dc.formatapplication/pdfes_ES
dc.identifier.doi10.1071/rd12405
dc.identifier.urihttps://www.publish.csiro.au/rd/RD12405
dc.identifier.urihttp://146.190.124.33/handle/123456789/6569
dc.language.isoenges_ES
dc.publisherCommonwealth Scientific and Industrial Research Organisationes_ES
dc.relation.ispartofReproduction, Fertility and Development; Vol. 26, N° 4, pp. 521-526
dc.sourceReproduction, Fertility and Developmentes_ES
dc.subjectFOLLICULAR ABLATIONes_ES
dc.subject17Β-OESTRADIOLes_ES
dc.subjectPROGESTERONEes_ES
dc.subjectWAVE EMERGENCEes_ES
dc.titleOvarian synchronisation in wood bison (Bison bison athabascae) during the anovulatory seasones_ES
dc.typeinfo:eu-repo/semantics/article
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