Availability of lysine from Lupinus angustifolius and Lupinus albus fed to growing pigs and determined using a modified slope-ratio analysis
Document Type
Conference Proceeding
Publication Date
1997
Conference Title
Proceedings of the Nutrition Society of Australia
Place of Publication
St Leonards
Keywords
Lysine, Pigs, Diets, Slope-ratio anaylsis, Digestibility
Disciplines
Agricultural Science | Agriculture | Animal Sciences | Food Science | Meat Science
Abstract
Highly variable estimates of lysine availability in lupins have made it difficult to define the most appropriate values for use in diet formulations. The apparent ileal digestibility of lysine in the whole seed and kernels of Lupinus angustifolius cv Gungurru (LAG, 0.82 and 0.92, respectively) and Lupinus albus cv Kiev Mutant (LAK, 0.81 and 0.84, respectively) is high. In contrast, the availability of lysine in three samples of L.angustifolius cv. uniharvest for pigs has been reported to be low and highly variable (1), but the current recommended value for lysine availability in lupins of 0.55 is not supported by results achieved commercially (2). The aim of this experiment was to apply a modified slope ratio analysis to determine the availability of lysine in the whole seed and kernel of LAG and LAK when fed to growing pigs.
Recommended Citation
Van Barneveld, R.J., Campbell, R.G., King, R.H., Dunshea, F.R. and Mullan, B.P. (1997). Availability of lysine from Lupinus angustifolius and Lupinus albus fed to growing pigs and determined using a modified slope-ratio analysis. Proceedings of the Nutrition Society of Australia, 21: p117.
