Leucaena toxicity: a new perspective on the most widely used forage tree legume

Halliday, Michael J., Padmanabha, Jagadish, McSweeney, Chris S., Kerven, Graham and Shelton, H. Max (2013). Leucaena toxicity: a new perspective on the most widely used forage tree legume. In: David L. Michalk, Geoffrey D. Millar, Warwick B. Badgery and Kim M. Broadfoot, Proceedings 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities. IGC2013: 22nd International Grassland Congress, Darling Harbour, NSW, Australia, (179-187). 15-19 September, 2013.

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Name Description MIMEType Size Downloads
Author Halliday, Michael J.
Padmanabha, Jagadish
McSweeney, Chris S.
Kerven, Graham
Shelton, H. Max
Title of paper Leucaena toxicity: a new perspective on the most widely used forage tree legume
Conference name IGC2013: 22nd International Grassland Congress
Conference location Darling Harbour, NSW, Australia
Conference dates 15-19 September, 2013
Proceedings title Proceedings 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities
Place of Publication Sydney, NSW, Australia
Publisher NSW Department of Primary Industries
Publication Year 2013
Sub-type Fully published paper
Open Access Status
ISBN 9781742565439
9781742565422
Editor David L. Michalk
Geoffrey D. Millar
Warwick B. Badgery
Kim M. Broadfoot
Volume 22
Start page 179
End page 187
Total pages 9
Collection year 2014
Language eng
Formatted Abstract/Summary
The tree legume Leucaena leucocephala (leucaena) is a high quality ruminant feed, vitally important for livestock production in the tropics despite the presence of mimosine in the leaves. This toxic non-protein amino acid has the potential to limit productivity and adversely affect the health of animals. The discovery and subsequent distribution in Australia of the ruminal bacterium Synergistes jonesii as an oral inoculum was shown in the 1980s to overcome these toxic effects. However, recent surveys of the status of toxicity worldwide; improved understanding of the chemistry and mode of action of the toxins; new techniques for molecular sequencing; and concerns about the efficacy of the in vitro inoculum; have cast doubt on some past understanding of leucaena toxicity and provides new insights into the geographical spread of S. jonesii. There is also confusion and ignorance regarding the occurrence and significance of toxicity in many countries worldwide. Ongoing research into the taxonomy and ecology of the Synergistes phylum, improved methods of inoculation, improved management solutions, along with awareness-raising extension activities, are vital for the future success of leucaena feeding systems.
Keyword Leucaena leucocephala
Synergistes jonesii
Toxicity
Mimosine
Dihydroxypyridine
DHP
Urine
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Wed, 02 Apr 2014, 17:48:22 EST by Dr Max Shelton on behalf of School of Agriculture and Food Sciences