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The effect of short-term nutritional supplementation and body condition on the pituitary and ovarian responses of anoestrus ewes to the "ram effect"

Archive ouverte | Johnson, Lisa | CCSD

Chantier qualité GA . In sheep production, the “ram effect” is a technique for inducing fertility in seasonal anoestrus and “flushing” a technique to increase litter size. Often used individually, we wanted to know ...

Short oestrous cycles in sheep during anoestrus involve defects in progesterone biosynthesis and luteal neovascularisation

Archive ouverte | Brown, Hannah Mary | CCSD

Anoestrous ewes can be induced to ovulate by the socio-sexual, 'ram effect'. However, in some ewes the induced ovulation is followed by an abnormally short luteal phase causing a so called, "short cycle". The defect responsible fo...

The pattern of LH secretion and the ovarian response to the 'ram effect' in the anoestrous ewe is influenced by body condition but not by short-term nutritional supplementation

Archive ouverte | Scaramuzzi, Rex | CCSD

Remerciements : Laboratoire Phénotypage - Endocrinologie INRA, UMR Physiologie de la Reproduction et des Comportements, Centre Val de Loire. In sheep, the ‘ram effect’ induces out-of-season fertility and good nutrit...

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