Lupins, Hulls, Nutritive value
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For a number of years Grain Pool marketing representatives have approachd stockfeed manufacturers around the world in an attempt to broaden the market for Western Australian lupin seed.
Wherever there was enough consumer interest to conduct a nutritional evaluation of the product, lupins were found to be non competitive for inclusion in both pig and poultry rations, while at the same price being acceptable as a cattle feed ingredient. The reason for this disparity proved to be the varying degrees of fibre digestability of lupins for the various livestock tested.
It became apparent that the fibrous lupin seed coat or hull was the difference between West Australian lupin seed penetrating the world's pig and poultry markets or being restricted to lupin exports for ruminants only. The only way the Grain Pool could be competetive with other protein sources was to supply dehulled lupins or lupin kernels.
Having identified the demand for dehulled lupins, the next task was to find a use for the by-product, the lupin hull. The lupin hull represents about one-quarted of the whole seed and if the hulls were simply discarded, the premium required for the kernels would price it out of most markets, bearing in mind that dehulling costs must also be included
Coffey, R S.
"Lupin processing : a new development,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 27
, Article 6.
Available at: https://researchlibrary.agric.wa.gov.au/journal_agriculture4/vol27/iss2/6