Decline in serum follicle-stimulating hormone concentrations alters key intrafollicular growth factors involved in selection of the dominant follicle in heifers.

Abstract

Declining FSH after a transient rise coincides with selection of a dominant follicle (DF) and atresia of the remaining cohort follicles (subordinates) in cattle. The objectives of this study were to determine 1) whether intrafollicular amounts of inhibins, activin-A, insulin-like growth factor I (IGF-I), and IGF-I-binding proteins (IGFBP) are altered during… (More)

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