Portal do Governo Brasileiro
BDPA - Bases de Dados da Pesquisa Agropecuária Embrapa
 






Registro Completo
Biblioteca(s):  Embrapa Pesca e Aquicultura.
Data corrente:  07/03/2024
Data da última atualização:  07/03/2024
Tipo da produção científica:  Artigo em Periódico Indexado
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:  https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1162683/1/aquaculturereports-2024.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Pesca e Aquicultura (CNPASA)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPASA1357 - 1UPCAP - DD20242024
Voltar






Registro Completo

Biblioteca(s):  Embrapa Gado de Leite.
Data corrente:  15/09/2022
Data da última atualização:  07/12/2022
Tipo da produção científica:  Artigo em Periódico Indexado
Circulação/Nível:  A - 2
Autoria:  MOTTA, I. G. B. da; SANTANA, L. A. R.; PEREIRA, H. P.; PAULA, V. R. de; MARTINS, M. F.; CARNEIRO, J. da C.; OTENIO, M. H.
Afiliação:  ISABELA GOMES BARRETO DA MOTTA, Universidade Federal de Juiz de Fora; LARICE APARECIDA REZENDE SANTANA, Universidade Federal de Juiz de Fora; HYAGO PASSE PEREIRA, Universidade Federal de Juiz de Fora; VANESSA ROMARIO DE PAULA, CNPGL; MARTA FONSECA MARTINS, CNPGL; JAILTON DA COSTA CARNEIRO, CNPGL; MARCELO HENRIQUE OTENIO, CNPGL.
Título:  Population dynamics of methanogenic archea in co-digestion systems operating different industrial residues for biogas production.
Ano de publicação:  2022
Fonte/Imprenta:  Sustainability, v. 14, 11536, 2022.
DOI:  https://doi.org/10.3390/su141811536
Idioma:  Inglês
Conteúdo:  This study aimed to analyze the population dynamics of methanogenic archaea in codigestion systems operated under different concentrations of industrial waste such as ricotta whey and brewery waste sludge in association with bovine manure. It was believed that the association of these residues from the food industry combined with bovine manure can contribute to improve the production of biogas. To identify the archaea, DNA extractions and the sequencing of the 16s rRNA gene were performed from 38 samples of influents and effluents. The results indicated that Methanosaeta and Methanosarcina were predominant in the co-digestion of ricotta cheese whey and that Methanosaeta, Methanocorpusculum, and Methanobrevibacter prevailed in the co-digestion of residual brewery sludge. The three ricotta cheese whey biodigesters demonstrated efficiency in methane production; in contrast, residual sludge of brewery biodigesters only showed efficiency in the system operated with 20% co-substrate.
Palavras-Chave:  Cervejaria; Ecologia microbiana.
Thesagro:  Biogás; Metano; Resíduo Industrial.
Thesaurus NAL:  Methane; Microbial ecology; Ricotta cheese.
Categoria do assunto:  S Ciências Biológicas
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146487/1/Population-dynamics-of-methanogenic-archea-in-co-digestion.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Gado de Leite (CNPGL)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPGL25768 - 1UPCAP - DD
Fechar
Nenhum registro encontrado para a expressão de busca informada.
 
 

Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área Restrita

Embrapa Agricultura Digital
Av. André Tosello, 209 - Barão Geraldo
Caixa Postal 6041- 13083-886 - Campinas, SP
SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional