Does Variation in Size of the Ovarian Reserve and FSH Secretion Impact Fertility?

Ireland, James J.; Smith, George W.; Evans, Alun; Lonergan, P.; Jimenez-Krassel, Fermin; Ireland, J. J.; Scheetz, Danielle M.; Folger, Joe

doi:10.1093/biolreprod/77.s1.69d

Cited by 2 publications

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“…The SDS-PAGE analysis of serum samples showed the presence of 24 proteins between 361 and 15 kDa (Figures 4 and 5 and Table 4). In addition, AMH is a good prognostic tool for fertility and can be used to weed cattle to obtain a good dairy herd (Ireland et al 2007). In this study, it was determined that the effect of serum AMH concentrations on the number of insemination, sampling time and insemination*time were statistically significant (p<0.001).…”

Section: Electrophoretic Resultsmentioning

confidence: 92%

Effect of Anti-Mullerian Hormone, Metabolic Profile and Mineral Levels at Transition Period On The Calving – Conception Interval in Cows

İleritürk

Kaynar

2023

Kocatepe Veterinary Journal

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The transition period in dairy cows is generally accepted as the period covering 3 weeks before calving and 3 weeks after calving. The aim of the study was to compare the profiles of β-hydroxybutyrate, calcium, magnesium, phosphorus, total cholesterol, total protein, triacylglycerol, free glycerol, serum lipid and serum protein with Anti-Mullerian Hormone (AMH) in dairy cows in the transition period, and to determine whether AMH to examine whether it can be used as a marker in the next insemination period. The cows whose blood samples were taken were followed up and it was determined that they became pregnant at the insemination and the study was terminated. According to the results obtained; It was determined that BHB and free glycerol, which are important markers of negative energy balance (NEB), have an effect on AMH concentration. However, it was determined that the concentration of magnesium and the ratio of cholesterol ester in serum total fat did not change much during the transition period. Our results suggest that AMH is a good biomarker of decreased follicular activity due to NEB in the transition period and that AMH can be used for herd weeding in reinsemination.

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Section: Electrophoretic Resultsmentioning

confidence: 92%

Effect of Anti-Mullerian Hormone, Metabolic Profile and Mineral Levels at Transition Period On The Calving – Conception Interval in Cows

İleritürk

Kaynar

2023

Kocatepe Veterinary Journal

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“…Dicha respuesta es atribuible principalmente al efecto promotor del reclutamiento y el crecimiento de los folículos por parte de la FSH, dado que es ampliamente aceptado el papel de la FSH en la folículogénesis, lo cual implica que la variación en el número de folículos en crecimiento durante una onda folicular estaría positivamente asociada al menos durante una parte de la onda, con las concentraciones séricas de FSH (Ireland et al, 2007;Vieira et al, 2014). Recientemente se plantea la definición de las hembras bovinas como de bajo potencial, cuando producen un número limitado de embriones a causa de su limitada población de folículos antráles pequeños presentes en el ovario al momento de iniciar el tratamiento con FSH (Durocher et al 2006;Monteiro et al, 2017).…”

Section: ■ Discusiónunclassified

Evaluación de la estimulación ovárica y la calidad de oocitos bovinos obtenidos por aspiración folicular

Giraldo¹,

Ramírez²,

Oquendo³

et al. 2017

J. agric. anim. sci.

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Introducción. La aspiración folicular guiada por ultrasonido (AFGU) acoplada a la producción in vitro de embriones (PIVE), es una alternativa importante para el aprovechamiento de los recursos genéticos de hembras bovinas de alto potencial productivo. Sin embargo, la calidad reducida de los oocitos recuperados por esta técnica, es uno de los aspectos que más afecta la eficiencia de obtención de embriones. Materiales y Métodos. Esta investigación comparó el desarrollo folicular, y la calidad de los oocitos recuperados por AFGU, en hembras bovinas superestimuladas convencionalmente con FSH, o con FSH y hCG. Resultados. Se evidenció una mayor calidad en los oocitos recuperados de animales estimulados con FSH y hCG, respecto a aquellos estimulados solo con FSH. Conclusiones. La inclusión de hCG en un esquema para la superestimulación ovárica con FSH de hembras bovinas posteriormente sometidas a aspiración folicular, ejerce un efecto favorable sobre la calidad de oocitos recuperados.Palabras claves: estimulación ovárica, folículos ováricos, gonadotropinas. Introduction. Ultrasound-guided follicular aspiration (UGFA) coupled with the in-vitro production of embryos is an important alternative for the use of genetic resources of bovine females of high productive potential. However, the reduced quality of oocytes recovered with this technique is one of the aspects with the highest impact on the efficiency to obtain embryos. Materials and methods. This research compared follicular development with the quality of oocytes recovered by UGFA, in bovine females conventionally over-stimulated with FSH or FSH and hCG. Results. A higher quality of oocytes recovered from animals stimulated with FSH and hCG was seen compared to the ones stimulated with FSH only. Conclusions. Inclusion of Hcg in a scheme for the ovarian over-stimulation with FSH of bovine females subject to follicular aspiration becomes a favorable effect on the quality of recovered oocytes.

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Does Variation in Size of the Ovarian Reserve and FSH Secretion Impact Fertility?

Cited by 2 publications

References 0 publications

Effect of Anti-Mullerian Hormone, Metabolic Profile and Mineral Levels at Transition Period On The Calving – Conception Interval in Cows

Effect of Anti-Mullerian Hormone, Metabolic Profile and Mineral Levels at Transition Period On The Calving – Conception Interval in Cows

Evaluación de la estimulación ovárica y la calidad de oocitos bovinos obtenidos por aspiración folicular

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