<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV class=header xmlns="http://www.w3.org/1999/xhtml">
<DIV class=titlegroup>
<DIV class=title-document>
<H2><A href="http://www3.interscience.wiley.com/journal/118545114/home">Aquaculture Research</A></H2>
<DIV class=volIss><STRONG><A href="http://www3.interscience.wiley.com/journal/122651573/issue">Volume 40 Issue 15</A>, Pages 1694 - 1702</STRONG></DIV>
<P class=pubOnline><STRONG>Published Online: </STRONG>11 Jun 2009</DIV>
<P class=pubOnline> </DIV></DIV>
<DIV class=title-document>Growth performance of weaning red abalone (<SPAN class=i><EM>Haliotis rufescens</EM></SPAN>) fed with <SPAN class=i><EM>Macrocystis pyrifera</EM></SPAN> plantlets and <SPAN class=i><EM>Porphyra columbina</EM></SPAN> compared with a formulated diet</DIV></DIV>
<DIV class=author-info><SPAN class=name><SPAN class=forenames>Jorge</SPAN> <SPAN class=surname>Hernández</SPAN> <SUP><NOBR>1,2</NOBR></SUP> <A href="http://www3.interscience.wiley.com/journal/122455422/abstract#fn1"><FONT color=#336699><SUP><NOBR>*</NOBR></SUP> </FONT></A></SPAN>, <SPAN class=name><SPAN class=forenames>Iker</SPAN> <SPAN class=surname>Uriarte</SPAN> <SUP><NOBR>1,2</NOBR></SUP> </SPAN>, <SPAN class=name><SPAN class=forenames>María Teresa</SPAN> <SPAN class=surname>Viana</SPAN> <SUP><NOBR>2,3</NOBR></SUP> </SPAN>, <SPAN class=name><SPAN class=forenames>Renato</SPAN> <SPAN class=surname>Westermeier</SPAN> <SUP><NOBR>2,4</NOBR></SUP> </SPAN>& <SPAN class=name><SPAN class=forenames>Ana</SPAN> <SPAN class=surname>Farías</SPAN> <SUP><NOBR>1,2</NOBR></SUP> </SPAN>
<DIV class=addresses><SPAN class=address><A class=invisible-anchor name=a1><FONT color=#336699> </FONT></A><SPAN id=a1> <SPAN class=number><SUP><NOBR>1</NOBR></SUP> </SPAN>Hatchery de Invertebrados Marinos, Instituto de Acuicultura, Universidad Austral de Chile, Puerto Montt, Chile</SPAN> <BR><A class=invisible-anchor name=a2><FONT color=#336699> </FONT></A><SPAN id=a2> <SPAN class=number><SUP><NOBR>2</NOBR></SUP> </SPAN>CIEN Austral Centro de Investigación en Nutrición, Tecnología en Alimentos y Sustentabilidad, Puerto Montt, Chile</SPAN> <BR><A class=invisible-anchor name=a3><FONT color=#336699> </FONT></A><SPAN id=a3> <SPAN class=number><SUP><NOBR>3</NOBR></SUP> </SPAN>Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico</SPAN> <BR><A class=invisible-anchor name=a4><FONT color=#336699> </FONT></A><SPAN id=a4> <SPAN class=number><SUP><NOBR>4</NOBR></SUP> </SPAN>Ficohatchery,
Instituto de Acuicultura, Universidad Austral de Chile, Puerto Montt, Chile</SPAN> </SPAN></DIV>
<DIV class=correspondence-address><A class=invisible-anchor name=c1><FONT color=#336699> </FONT></A><SPAN id=c1> <SPAN class=b><STRONG>Correspondence:</STRONG></SPAN> I Uriarte, Hatchery de Invertebrados Marinos, Instituto de Acuicultura, Universidad Austral de Chile, PO Box 1327, Puerto Montt, Chile. E-mail: <A class=externallink href="mailto:iuriarte@uach.cl"><FONT color=#336699>iuriarte@uach.cl</FONT></A></SPAN> </DIV></DIV>
<DIV class=header-footnotes>
<DIV class=footnote>
<P class=para><A class=invisible-anchor name=fn1><FONT color=#336699> </FONT></A><SPAN id=fn1> <SUP><NOBR>*</NOBR></SUP> <SPAN class=b><STRONG>Present address:</STRONG></SPAN> J Hernández, Universidad de Vigo, Departamento de Ecología y Biología Animal Edificio de Ciencias Experimentales, Vigo Spain</SPAN> </DIV></DIV></DIV>
<DIV class=bpg40copyright>Copyright Journal compilation © 2009 Blackwell Publishing Ltd</DIV></DIV>
<DIV class=keywords-block xmlns="http://www.w3.org/1999/xhtml">
<DIV class=keyword-title>KEYWORDS</DIV>
<DIV class=keywords>abalone • <SPAN class=i><EM>Haliotis rufescens</EM></SPAN> • weaning • diets • <SPAN class=i><EM>Macrocystis pyrifera</EM></SPAN> • <SPAN class=i><EM>Porphyra columbina</EM></SPAN> </DIV></DIV>
<DIV class=abstract-content id=abstract xmlns="http://www.w3.org/1999/xhtml">
<DIV class=summary>
<DIV class=header_divide>
<H1 class=abstract-title id=h0>ABSTRACT</H1></DIV>
<P class=para>A feeding experiment was carried out to evaluate two natural diets versus a formulated feed on the performance of weaning red abalone <SPAN class=i><EM>Haliotis rufescens</EM></SPAN>. Four treatment diets were then investigated: a formulated diet; plantlets from culture <SPAN class=i><EM>Macrocystis pyrifera, Porphyra columbina</EM></SPAN> from natural beds; and a mixed diet consisting of a blend of fresh <SPAN class=i><EM>P. columbina</EM></SPAN> together with the formulated diet. This study was performed in a shallow aquaculture system with a horizontal water flow. After 90 days, significant differences were observed between treatments. The highest growth was obtained with <SPAN class=i><EM>Porphyra</EM></SPAN> (3.3 mm month<SUP><NOBR>−1</NOBR></SUP>), followed by the mixed diet (2.6 mm month<SUP><NOBR>−1</NOBR></SUP>), then <SPAN class=i><EM>Macrocystis</EM></SPAN>
(2.1 mm month<SUP><NOBR>−1</NOBR></SUP>) and lastly the formulated diet (1.4 mm month<SUP><NOBR>−1</NOBR></SUP>). Moreover, after the diets were tested for stability and remnant nutrients after a 12-h water immersion, a positive trend appeared to be related to the protein/energy (P:E). It is concluded that fronds of <SPAN class=i><EM>P. columbina</EM></SPAN> resulted in the best diet for weaning <SPAN class=i><EM>H. rufescens</EM></SPAN> under horizontal water flow systems, even if apparently the water stability of the formulated diet had a negative impact on abalone performance, particularly due to a poor nutrient retention capacity. Therefore, formulated diets should be improved before being recommended for weaning red abalone.</DIV></DIV></DIV></td></tr></table><br>