Revista Brasileira de Engenharia de Pesca
Revista Brasileira de Engenharia de Pesca
Revista Brasileira de Engenharia de Pesca
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128<br />
Rev. Bras. Enga. <strong>Pesca</strong> 2[1]<br />
ANÁLISE ESTATÍSTICA DAS VARIÁVEIS DE CULTIVO DO<br />
CAMARÃO-CINZA Litopenaeus vannamei (BOONE, 1931)<br />
Bruno Leonardo da Silva SANTOS (brunopesca@hotmail.com);<br />
Paulo <strong>de</strong> Paula MENDES (paulo_ufrpe@yahoo.com.br)<br />
Departamento <strong>de</strong> <strong>Pesca</strong> e Aqüicultura/UFRPE.<br />
RESUMO<br />
Foram utilizados 53 dados <strong>de</strong> cultivos <strong>de</strong> uma fazenda comercial do camarão-cinza Litopenaeus<br />
vannamei, objetivando correlacionar as variáveis respostas com as <strong>de</strong> manejo utilizando-se mo<strong>de</strong>los<br />
matemáticos. As variáveis <strong>de</strong>pen<strong>de</strong>ntes analisadas foram: sobrevivência, peso final, fator <strong>de</strong> conversão<br />
alimentar, produção, produtivida<strong>de</strong> e quantida<strong>de</strong> <strong>de</strong> ração, enquanto que as in<strong>de</strong>pen<strong>de</strong>ntes foram:<br />
número do viveiro, número do ciclo, área do viveiro, trimestre do ano, ano, <strong>de</strong>nsida<strong>de</strong> <strong>de</strong> estocagem,<br />
dias <strong>de</strong> cultivo, laboratório fornecedor <strong>de</strong> pós-larva e marca da ração. Para selecionar as variáveis<br />
significativas nos mo<strong>de</strong>los (P < 0,05), utilizou-se a técnica <strong>de</strong> Stepwise associada ao processo <strong>de</strong><br />
transformação <strong>de</strong> Box e Cox. A estimação do transformador (λ) foi feito com a minimização da soma<br />
dos quadrados dos resíduos. Verificou-se que dias <strong>de</strong> cultivo, <strong>de</strong>nsida<strong>de</strong> <strong>de</strong> estocagem, laboratório<br />
fornecedor <strong>de</strong> pós-larva e a área dos viveiros foram as variáveis in<strong>de</strong>pen<strong>de</strong>ntes significativas para<br />
predição das variáveis respostas.<br />
PALAVRAS CHAVE: Litopenaeus vannamei, manejo, mo<strong>de</strong>los, variáveis.<br />
ABSTRACT<br />
STATISTICAL ANALYSIS OF THE VARIABLE OF CULTIVATION OF THE SHRIMP<br />
Litopenaeus vannamei (BOONE, 1931)<br />
Fifty tree data of cultivations of the commercial marine shrimp farm Litopenaeus vannamei were used,<br />
to correlate the <strong>de</strong>pen<strong>de</strong>nt variables with the one of handling being used mathematical mo<strong>de</strong>ls. The<br />
analyzed <strong>de</strong>pen<strong>de</strong>nt variables were: survival, final weight, ration rate, factor of alimentary conversion,<br />
production, productivity and amount of ration, while the in<strong>de</strong>pen<strong>de</strong>nt ones were: number of the pond,<br />
number of the cycle, area of the pond, trimester of the year, year, stocking <strong>de</strong>nsity, days of cultivation,<br />
supplying laboratory of post-larvae and mark of the ration. To select the significant variables in the<br />
mo<strong>de</strong>ls (P < 0.05), it was used the technique of Stepwise associated to the process of transformation of<br />
Box and Cox. The estimate of the transformer (λ) it was done with the minimization of the sum of the<br />
squares of the residues. It was verified that days of cultivation, stocking <strong>de</strong>nsity, and supplying<br />
laboratory of post-larvae and the area of the pond were the significant in<strong>de</strong>pen<strong>de</strong>nt variables for<br />
prediction of the variables.<br />
KEYWORDS: Litopenaeus vannamei, handling, mo<strong>de</strong>ls, variables.