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：373-373
出版社：Government of Western Australia / Department of Fisheries
摘要：In recent years, new cultivars of lupins have largely replaced the cultivars that were studied
in previous research with prawns. There was a need to establish if the breeding programs had
introduced changes in the new lupin cultivars that would affect the nutritional value of the kernel
meal for prawns. We have determined the apparent dry matter digestibility (ADMD), apparent
crude protein digestibility (ACPD) and apparent digestibility of energy (ADE) of the yellow
lupin Lupinus luteus cv. Wodjil, as well as of six of the new cultivars of Lupinus angustifolius
when used in diets for the black tiger prawn, Penaeus monodon. The L. angustifolius cultivars
represent about 80% of Australia’s lupin production. We have also determined the apparent
digestibility (AD) of the amino acids of five of the new cultivars of L. angustifolius, and of
L. luteus, cv. Wodjil. Ytterbium acetate was used as an inert digestibility marker at a concentration
of 0.5 g/kg in the diets. During the periods when faeces were collected, the prawns were fed every
6 h and faeces were collected within 3 h of being passed. Six replicate tanks were assigned to
each treatment. The kernel meal from L. luteus cv. Wodjil had the highest ADMD (70.0%) and
ADE (79.9%) but its ACPD was mid-range at 93.8%. The ADMD of the L. angustifolius kernel
meals varied between 56.5% and 66.3% with the mean (± s.e.m.) of 62.6% (± 0.95%), and the
ADE varied between 69.6% and 77.2% (mean ± s.e.m. = 74.0% ± 0.72%), whereas the ACPD
varied between 92.7% and 96.8% (mean ± s.e.m.= 94.3% ± 0.48%). The AD of the amino acids
was similar to the ACPD value. Though there were significant differences among the ADs of the
new cultivars of L. angustifolius, their values are similar to, though slightly lower than the AD
reported for the older cultivar, Gungurru. The general consistency of the L. angustifolius AD
results suggests that nutritionists and feed formulators can confidently use mean AD values for
dry matter, protein and energy for kernel meals comprising of random mixtures of cultivars.
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