Prediction of coumestrol content in unirrigated lucerne crops using weather variables

  title={Prediction of coumestrol content in unirrigated lucerne crops using weather variables},
  author={Rachel Lilian Fields and John Richard Sedcole and Graham Keith Barrell and Derrick Jan Moot},
  journal={New Zealand Journal of Agricultural Research},
  pages={528 - 542}
ABSTRACT Elevated coumestrol levels in lucerne (Medicago sativa L.) can reduce the reproductive performance of ewes. A model to predict coumestrol content of lucerne between summer and late autumn was developed to assess the risk of a crop having elevated levels. Data from previous studies have shown fungal damage to be the major contributor to coumestrol levels, but the fungal infestation levels that can cause a risk to reproduction in sheep are difficult to quantify. A number of variables… 
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Alfalfa Coumestrol Content in Response to Development Stage, Fungi, Aphids, and Cultivar
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Plant population, yield and water use of lucerne sown in autumn at four sowing rates.
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Recovery of ovulation rate in ewes following their removal from an oestrogenic lucerne forage
This experiment quantified the decrease in risk of impaired lambing performance due to moderately oestrogenic lucerne consumption in relation to time on grass before ovulation and found that removal of ewes fromLucerne 2 weeks before Ovulation mitigated the risk of decreased lambingperformance.
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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.
illustrated series of assessment keys for plant diseases, their preparation and usage
The percentage sca l e was exclus ive ly used t o define d i f f e r e n t d isease s e v e r i t i e s i n an i l l u s t r a t e d series of d isease assessment keys f o r ce rea l , forage, and f