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<title>UTas ePrints - Optimal dietary protein level for juvenile southern rock lobster, Jasus edwardsii, at two lipid levels</title>
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<meta content="Ward, L.R." name="eprints.creators_name" />
<meta content="Carter, C.G." name="eprints.creators_name" />
<meta content="Crear, Bradley J." name="eprints.creators_name" />
<meta content="Smith, D.M." name="eprints.creators_name" />
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<meta content="2007-03-16" name="eprints.datestamp" />
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<meta content="Optimal dietary protein level for juvenile southern
rock lobster, Jasus edwardsii, at two lipid levels" name="eprints.title" />
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<meta content="Dietary protein; Digestible protein requirement; Jasus edwardsii; Southern rock lobster" name="eprints.keywords" />
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<meta content="This study determined the effect on growth efficiency, nutrient retention and apparent digestibility
of varying dietary protein concentration and protein/energy ratio for juvenile southern rock lobster,
Jasus edwardsii. Isoenergetic diets were formulated at six crude protein levels (5% increments
between 24% and 50%) and at each of two lipid levels (5% and 9%). Duplicate groups of 10 lobsters
(initial weight mean 3.58 SE 0.86 g) were held in 50-l tanks, in a recirculating seawater system at 18 degrees Celsius and fed to 95% satiation over a 12-week growth trial. There were significant ( P < 0.05) differences in
apparent crude protein digestibility (76.4-83.2%), but no difference in dry matter (mean 59.1 SE 0.8%) or
energy digestibility (mean 77.7 SE 0.8%). Survival, feed intake, digestive gland index, protein efficiency
ratio, energy efficiency ratio and whole-body composition were not significantly affected by dietary
treatment. The relationship between nutrient intake and weight gain indicated optimal dietary
digestible crude protein (DCP) levels of 29% and 31% when lobsters were fed diets containing 5%
and 9% lipid, respectively. For the two lipid levels studied, the optimal dietary protein/energy
requirement was similar for maximum weight gain (29 gDCP/ MJ DE) and feed conversion ratio
(FCR, 30 gDCP/MJ DE)." name="eprints.abstract" />
<meta content="2003" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Aquaculture" name="eprints.publication" />
<meta content="217" name="eprints.volume" />
<meta content="483-500" name="eprints.pagerange" />
<meta content="10.1016/S0044-8486(02)00258-2" name="eprints.id_number" />
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<meta content="Akiyama, D.M., Coelo, S.R., Lawrence, A.L., Robinson, E.H., 1989. Apparent digestibility of feedstuffs by the
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of Penaeus monodon. Aquaculture 95, 89-96.
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<meta content="This study determined the effect on growth efficiency, nutrient retention and apparent digestibility
of varying dietary protein concentration and protein/energy ratio for juvenile southern rock lobster,
Jasus edwardsii. Isoenergetic diets were formulated at six crude protein levels (5% increments
between 24% and 50%) and at each of two lipid levels (5% and 9%). Duplicate groups of 10 lobsters
(initial weight mean 3.58 SE 0.86 g) were held in 50-l tanks, in a recirculating seawater system at 18 degrees Celsius and fed to 95% satiation over a 12-week growth trial. There were significant ( P < 0.05) differences in
apparent crude protein digestibility (76.4-83.2%), but no difference in dry matter (mean 59.1 SE 0.8%) or
energy digestibility (mean 77.7 SE 0.8%). Survival, feed intake, digestive gland index, protein efficiency
ratio, energy efficiency ratio and whole-body composition were not significantly affected by dietary
treatment. The relationship between nutrient intake and weight gain indicated optimal dietary
digestible crude protein (DCP) levels of 29% and 31% when lobsters were fed diets containing 5%
and 9% lipid, respectively. For the two lipid levels studied, the optimal dietary protein/energy
requirement was similar for maximum weight gain (29 gDCP/ MJ DE) and feed conversion ratio
(FCR, 30 gDCP/MJ DE)." name="DC.description" />
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<h1 class="ep_tm_pagetitle">Optimal dietary protein level for juvenile southern rock lobster, Jasus edwardsii, at two lipid levels</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Ward, L.R.</span> and <span class="person_name">Carter, C.G.</span> and <span class="person_name">Crear, Bradley J.</span> and <span class="person_name">Smith, D.M.</span> (2003) <xhtml:em>Optimal dietary protein level for juvenile southern rock lobster, Jasus edwardsii, at two lipid levels.</xhtml:em> Aquaculture, 217 . pp. 483-500.</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/827/1/%23294_Ward_2003.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/827/1/%23294_Ward_2003.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />171Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1016/S0044-8486(02)00258-2">http://dx.doi.org/10.1016/S0044-8486(02)00258-2</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">This study determined the effect on growth efficiency, nutrient retention and apparent digestibility
of varying dietary protein concentration and protein/energy ratio for juvenile southern rock lobster,
Jasus edwardsii. Isoenergetic diets were formulated at six crude protein levels (5% increments
between 24% and 50%) and at each of two lipid levels (5% and 9%). Duplicate groups of 10 lobsters
(initial weight mean 3.58 SE 0.86 g) were held in 50-l tanks, in a recirculating seawater system at 18 degrees Celsius and fed to 95% satiation over a 12-week growth trial. There were significant ( P < 0.05) differences in
apparent crude protein digestibility (76.4-83.2%), but no difference in dry matter (mean 59.1 SE 0.8%) or
energy digestibility (mean 77.7 SE 0.8%). Survival, feed intake, digestive gland index, protein efficiency
ratio, energy efficiency ratio and whole-body composition were not significantly affected by dietary
treatment. The relationship between nutrient intake and weight gain indicated optimal dietary
digestible crude protein (DCP) levels of 29% and 31% when lobsters were fed diets containing 5%
and 9% lipid, respectively. For the two lipid levels studied, the optimal dietary protein/energy
requirement was similar for maximum weight gain (29 gDCP/ MJ DE) and feed conversion ratio
(FCR, 30 gDCP/MJ DE).</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Additional Information:</th><td valign="top" class="ep_row">http://www.elsevier.com/locate/aqua-online
</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Dietary protein; Digestible protein requirement; Jasus edwardsii; Southern rock lobster</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/300403.html">300000 Agricultural, Veterinary and Environmental Sciences > 300400 Animal Production > 300403 Animal Nutrition</a><br /><a href="http://eprints.utas.edu.au/view/subjects/300703.html">300000 Agricultural, Veterinary and Environmental Sciences > 300700 Fisheries Sciences > 300703 Aquaculture</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">827</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Louise R Ward</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">16 Mar 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=827;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=827">item control page</a></p>
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