Abstract
The concentrations of phyto-oestrogens in legume hays, a by-product of legume pastures, may potentially fluctuate during the drying process. Concerns about oestrogenic concentrations in hay have been predominantly raised by the dairy and equine industries, where feeding legume hay is a common practice. Coumestrol concentrations in lucerne hay have been reported as great as 201 ppm, resulting in hyper-oestrogenism in the cattle ingesting the hay. Concentrations of coumestrol, and other phytooestrogens have been observed to vary between fresh and dried ‘hay-like’ samples depending on the
cultivar. Targeted analysis of key phyto-oestrogens in pasture were conducted using high-pressure liquid chromatography coupled with quadrupole – time of flight mass spectrometry (HPLC-QTOF-MS). Relative abundance of the isoflavones, daidzein, genistein, kaempferol, formononetin and biochanin A decreased after 48 hrs, whilst the relative abundance of coumestans; coumestrol,
4'methoxycoumestrol and 3'methoxycoumestrol continued to increase over the 48 hrs after being cut for hay.
cultivar. Targeted analysis of key phyto-oestrogens in pasture were conducted using high-pressure liquid chromatography coupled with quadrupole – time of flight mass spectrometry (HPLC-QTOF-MS). Relative abundance of the isoflavones, daidzein, genistein, kaempferol, formononetin and biochanin A decreased after 48 hrs, whilst the relative abundance of coumestans; coumestrol,
4'methoxycoumestrol and 3'methoxycoumestrol continued to increase over the 48 hrs after being cut for hay.
| Original language | English |
|---|---|
| Pages | 7 |
| Number of pages | 1 |
| Publication status | Published - 24 May 2023 |
| Event | DocFest 2023 Graduate Research Conference: The Evolving Researcher - Charles Sturt University , Wagga Wagga, Australia Duration: 22 May 2023 → 26 May 2023 https://research.csu.edu.au/research-support/researcher-development/docfest/docfest-2023 (Event website) https://cdn.csu.edu.au/__data/assets/pdf_file/0006/4195896/DocFest,-Abstract-booklet.pdf (Abstract booklet) https://research.csu.edu.au/research-support/researcher-development/docfest/docfest-2023/docfest23-recordings (Program, abstracts and recordings) https://web.archive.org/save/https://research.csu.edu.au/research-support/researcher-development/docfest/docfest-2023/docfest23-recordings (Wayback Machine link) |
Conference
| Conference | DocFest 2023 Graduate Research Conference |
|---|---|
| Abbreviated title | The evolving researcher |
| Country/Territory | Australia |
| City | Wagga Wagga |
| Period | 22/05/23 → 26/05/23 |
| Other | As researchers we evolve over time - we learn new skills, broaden our thinking, and expand our horizons and networks. The world in which we work is also evolving - in some ways we are more connected than ever and in others more disconnected, and the global challenges we face are many. Just as academic employment opportunities are becoming more limited and increasingly precarious, the opportunities outside of academia are growing and the skills you develop as researchers are more in-demand by industry, business, and the not for profit and public sectors than ever before. At DocFest23 we explored how we as researchers can evolve to meet these challenges and much more! |
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