Data/hora: 04/06/2024 15:46:33

Biblioteca(s): | Embrapa Pesca e Aquicultura.
Data corrente: | 07/03/2024
Data da última atualização: | 07/03/2024
Autoria: | RODRIGUES, A. P. O.; FREITAS, L. E. L. de; MACIEL-HONDA, P. O.; LIMA, A. F.; LIMA, L. K. F. de.
Afiliação: | ANA PAULA OEDA RODRIGUES, CNPASA; LUIZ EDUARDO LIMA DE FREITAS, CNPASA; PATRICIA OLIVEIRA MACIEL HONDA, CNPASA; ADRIANA FERREIRA LIMA, CNPASA; LEANDRO KANAMARU FRANCO DE LIMA, CNPASA.
Título: | Feeding rate and feeding frequency during the grow-out phase of tambaqui (Colossoma macropomum) in earthen ponds.
Ano de publicação: | 2024
Fonte/Imprenta: | Aquaculture Reports, v. 35, 102000, 2024.
ISSN: | 2352-5134
DOI: | https://doi.org/10.1016/j.aqrep.2024.102000
Idioma: | Inglês
Conteúdo: | Adequate feeding protocols are extremely important for the technical and economic feasibility of fish production systems. Two feeding rates, 3% and 4% body weight per day (3%BW and 4%BW), and two feeding frequencies, twice and three times a day, were tested during 84 days at the initial grow-out phase of tambaqui (94.5 ± 6.4 g) in earthen ponds. No mortalities or difference in growth between treatments were observed during the trial. Total feed intake and feed conversion ratio were low in the fish fed at 3%BW. Fat deposition in the fish carcass and concentration of glycogen and lipid vacuoles in the hepatocytes were also low in fish fed at 3%BW. Plasma cholesterol and triglycerides were higher in the fish fed three times a day at 4%BW. Increased concentration of malonaldehyde was observed in the carcass of fish fed three times a day at 4%BW at the end of the storage period. Fish fed twice a day presented higher total feed intake per meal than fish fed three times a day, demonstrating that tambaqui was able to regulate the feed intake to benefit from a low feeding frequency. No difference was observed in pond phytoplankton and zooplankton concentration or sediment chemistry. Fish fed at 3%BW presented higher stomach content weight, demonstrating the contribution of the natural food as a complementary nutrition to tambaqui. Based on the results, tambaqui of 95–350 g reared in earthen ponds may be fed twice a day at 3%BW.
Palavras-Chave: | Amazonian fish; Feed management; Natural productivity.
Thesagro: | Colossoma Macropomum; Nutrição Animal; Peixe; Tambaqui.
Thesaurus Nal: | Feed conversion; Fish.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1162683/1/aquaculturereports-2024.pdf
Registro original: | Embrapa Pesca e Aquicultura (CNPASA)
Exemplares: | CNPASA - (1357-1) - UPC - AP - DD - 2024 -  - 2024 - DIS