期刊名称：Western Australia. Fisheries Department. Fisheries Research Reports
印刷版ISSN：1035-4549
出版年度：2008
卷号：178
页码：88-88
出版社：Government of Western Australia / Department of Fisheries
摘要：This study examined the variability in the digestibility of a range of lupin kernel meals when
fed to rainbow trout. Over a series of seven separate experiments 75 different lupin kernel meals
were assessed for their digestible dry matter, protein, amino acid and energy characteristics.
A common reference basal diet and a reference lupin kernel meal diet were also included in
each experiment. Minimal variance in the digestibility parameters of both reference diets was
observed among the experiments ensuring that there was a high degree of robustness in the
across-experiment evaluations. A slightly larger degree of variance was observed among the
ingredient reference assessment, consistent with the amplification of errors that occurs with
derived terms such as ingredient digestibility coefficients. However, even the ingredient
digestibility variance was relatively low (< 10%) testifying to the high fidelity of the interexperiment
data. Using simple regression and multiple-regression techniques, principal diet
and ingredient composition factors affecting diet and ingredient digestibilities and ingredient
digestible values were explored with the dataset. Nitrogen digestibility of the lupin kernel meals
was negatively influenced by ingredient lignin content, but positively affected ingredient fat
content. There were no significant correlations between ingredient composition and sum of
amino acids digestibility of the lupin kernel meals.
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