Recovery of ovulation rate in ewes following their removal from an oestrogenic lucerne forage

@article{Fields2019RecoveryOO,
  title={Recovery of ovulation rate in ewes following their removal from an oestrogenic lucerne forage},
  author={Rachel Lilian Fields and Derrick Jan Moot and John Richard Sedcole and Graham Keith Barrell},
  journal={Animal Production Science},
  year={2019}
}
Grazing ewes on lucerne crops that contain elevated coumestrol concentrations before and during their mating period can decrease ovulation rate, which results in fewer multiple birth lambs. In this experiment, the ovulation rate of ewes grazing a moderately oestrogenic (29.1 ± 2.88 mg coumestrol/kg DM) lucerne crop for 6 weeks was compared with those transferred to grass pasture for 1 or 3 weeks, and a Control group on grass throughout. Ordinal regression predicted an exponential relationship… 
Alfalfa Coumestrol Content in Response to Development Stage, Fungi, Aphids, and Cultivar
TLDR
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TLDR
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TLDR
It is suggested that coumestans exert their effect by interference with the release of follicle stimulating hormone from the pituitary gland in ewes fed lucerne pellets.
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TLDR
Findings from a commercial farm suggest that oestrogenic lucerne may be detected by monitoring ewe lambs for mammary development to enable farmers to manage pre-mating grazing of ewes with minimal risk of lowered ovulation rates.
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TLDR
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TLDR
Effects of pasture feeding level during lactation and over summer on ewe wool growth and ovulation rate were assessed in 1983-84 and 1984-85 and carriedover effects through the summer when lactation low ewes grew 10% less wool irrespective of the level of summer feeding.
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TLDR
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TLDR
The combination of herbage nutritive characteristics with production and utilisation data showed that grazing stock consumed 30% more CP and ME annually from Lucerne than either chicory or red clover swards.
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In the Starborough-Flaxbourne area the local farming community, alarmed at the increasing hill slope erosion, set up a soil conservation group. Accelerated erosion was a symptom of the past 12 years
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