Multidimensional analysis of the pelletability of feeds and feed mixtures
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University of Agriculture, Doświadczalna 44,20-236 Lublin, Poland
Institut National de la Recherche Agronomique I.N.R.A., P.O. Box 71627,44316 Nantes Cedex 03, France
Acceptance date: 1997-01-31
Int. Agrophys. 1997, 11(3): 229-233
Principal component analysis (PCA) was applied to laboratory measurements of eight descriptive parameters of the pelletability of six raw materials (maize, rice, soybean, cassava, alfalfa and meat meal) and of mixtures of the first three. The two-fold aim was to select the most relevant criteria for classifying the raw materials and to verify the additivity of the mixtures. The best criterion was the work of compression by an axial load (up to 200 MPa) applied to the meal in a cylindrical cell. Maize and rice mixtures were additive. The compression of soybean was improved by the presence of maize and rice.
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