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Substratum choice for nesting in male Nile tilapia Oreochromis niloticus

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Four substrata were offered to groups of adult Nile tilapia Oreochromis niloticus (one male and two females) simultaneously: pure sand, a mixture of sand and shells, stones and no substratum. The results showed that males chose to dig nests in a lighter and more homogeneous substratum.

Keywords: choice test; cichlid; nest; welfare

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1095-8649.2010.02754.x

Affiliations: University of São Paulo State, Aquaculture Center of UNESP, Research Center of Animal Welfare (RECAW), Dep. Fisiologia, IBB, P.O. Box 510, Rubião Jr. s/n, CEP 18618-000, Botucatu, SP, Brasil

Publication date: October 1, 2010

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