Dose-Response of Female Llamas to Ovulation-Inducing Factor from Seminal Plasma
نویسندگان
چکیده
منابع مشابه
Biochemical isolation and purification of ovulation-inducing factor (OIF) in seminal plasma of llamas
BACKGROUND The objective of the present study was to isolate and purify the protein fraction(s) of llama seminal plasma responsible for the ovulation-inducing effect of the ejaculate. METHODS Semen collected from male llamas by artificial vagina was centrifuged and the seminal plasma was harvested and stored frozen. Seminal plasma was thawed and loaded onto a Type 1 macro-prep ceramic hydroxy...
متن کاملOvulation-inducing factor: a protein component of llama seminal plasma
BACKGROUND Previously, we documented the presence of ovulation-inducing factor (OIF) in the seminal plasma of llamas and alpacas. The purpose of the study was to define the biochemical characteristics of the molecule(s) in seminal plasma responsible for inducing ovulation. METHODS In Experiment 1, llama seminal plasma was centrifuged using filtration devices with nominal molecular mass cut-of...
متن کاملOvulation-inducing factor in seminal plasma: a review.
Ovulation in mammals involves pulsatile release of GnRH from the hypothalamus into the hypophyseal portal system with subsequent release of LH from the anterior pituitary into systemic circulation. Elevated circulating concentrations of LH induce a cascade of events within the mature follicle, culminating in follicle rupture and evacuation. The broad classification of species as either spontane...
متن کاملLocal versus systemic effect of ovulation-inducing factor in the seminal plasma of alpacas
BACKGROUND Camelids are induced (reflex) ovulators. We have recently documented the presence of an ovulation-inducing factor (OIF) in the seminal plasma of alpacas and llamas. The objective was to test the hypothesis that OIF exerts its effect via a systemic rather than a local route and that endometrial curettage will enhance the ovulatory response to intrauterine deposition of seminal plasma ...
متن کاملEvidence for the conservation of biological activity of ovulation-inducing factor in seminal plasma.
An ovulation-inducing factor (OIF) in the seminal plasma of llamas and alpacas (induced ovulators) and cattle (spontaneous ovulators) suggests that OIF is a conserved constituent of seminal plasma among mammals. In this study, three experiments were designed to determine the biological effects of OIF in different species. In experiment 1, superstimulated prepubertal female CD-1 mice (n=36 per g...
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ژورنال
عنوان ژورنال: Biology of Reproduction
سال: 2011
ISSN: 0006-3363,1529-7268
DOI: 10.1095/biolreprod.111.091876