Data/hora: 29/06/2024 11:17:23

Biblioteca(s): | Epagri-Sede.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | Internacional - A
Data corrente: | 05/09/2014
Data da última atualização: | 05/09/2014
Autoria: | JATOBA, A.; SILVA, B. C.; SILVA, J. S.; VIEIRA, F. N.; MOURIÑO, J. L. P.; SEIFFERT, W. Q.
Título: | Protein levels for Litopenaeus vannamei in semi-intensive and biofloc systems.
Ano de publicação: | 2014
Fonte/Imprenta: | Aquaculture, Amsterdam, v. 432, p. 365-371, 2014.
Idioma: | Português
Conteúdo: | The aims of this research were to evaluate the zootechnical performance and dietary cost for the marine shrimp (Litopenaeus vannamei) cultured in a superintensive biofloc system and a conventional semi-intensive system using diets containing different protein levels. Four different diets, with crude protein (CP) contents of 24.3, 30.3, 32.9 and 36.7% were produced. In the laboratory, experimental culture in the biofloc system was performed in twelve experimental units at a density of 250 shrimp m&#8722; 3, the four treatments were performed in triplicate. The semi-intensive culture system was applied at the commercial farm in eleven ponds containing 15.5 shrimp m&#8722; 2. After 49 days, the zootechnical performance of the shrimp was rated, and the cost per kilogram of shrimp was produced by both culture systems. In the semi-intensive system, the shrimp fed with a diet containing 32.9% CP showed a higher final weight and weight gain and a lower dietary cost. In the biofloc culture, a higher final weight, weight gain, growth rate and productivity were observed in shrimp fed diets containing 30.3, 32.9 and 36.7% CP compared with those fed a diet containing 24.3% CP. The lowest dietary cost of shrimp farming in the biofloc system was registered in the shrimp fed the 30.3% CP diet, whereas, in the semi-intensive system, the highest final weight, highest weight gain and lowest cost were observed in shrimp fed the 32.9% CP diet.
Palavras-Chave: | Farming systems; Nutrition; Pacific white shrimp; Production cost; Protein.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_34741.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (96615-1) - UPC - AP - DD -  -  -  - DIS