Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Animal Sciences (3) Autor Cavalcante, Davi de Holanda (3) Sá, Marcelo Vinícius do Carmo e (3) Lima, Francisco Roberto dos Santos (2) Rebouças, Vanessa Tomaz (2) Caldini, Nayara Nunes (1) Rocha Filho, Pedro Roberto Nogueira (1) Mais... Palavra-chave Piscicultura (3) Tilápia aquaculture (3) Oreochromis (2) Acidophilic fish (1) Ammonia (1) Limnoculture (1) Limnology (1) Oreochromis niloticus (1) PH (1) Water quality (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2016 (1) 2015 (2) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia Animal Sciences Cavalcante, Davi de Holanda; Lima, Francisco Roberto dos Santos; Rebouças, Vanessa Tomaz; Sá, Marcelo Vinícius do Carmo e. The present work aimed at determining the effects of the association between the periphyton-based system with the bioflocs-based system in the intensive culture of juvenile Nile tilapia (1.56 ± 0.07 g; 72 fish m-3), on variables of water quality, growth performance and effluent quality after 10 weeks. The experiment was arranged in a 2 x 2 factorial randomized block design with four treatments and five repetitions each. The factors tested were the following: ‘underwater structure’ (absence and presence) and ‘adjustment of the C: N ratio of water’ (no and yes). The final fish body weight, specific growth rate and yield were higher (p < 0.05) in the C: N-adjusted tanks. The presence of submerged structures in the tanks had no significant influence on... Tipo: Info:eu-repo/semantics/article Palavras-chave: Piscicultura; Tilápia aquaculture; Oreochromis; Limnoculture; Limnology. Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27592 Feeding Nile tilapia with artificial diets and dried bioflocs biomass Animal Sciences Caldini, Nayara Nunes; Cavalcante, Davi de Holanda; Rocha Filho, Pedro Roberto Nogueira; Sá, Marcelo Vinícius do Carmo e. The effects of supplying dried bioflocs biomass to Nile tilapia juveniles were investigated in the present work. Fish were stocked in experimental rearing tanks for eight weeks. Selected variables of water quality, growth performance and effluent quality were evaluated. Fish were given different combinations of artificial diets and biofloc biomass, in wet (in natura) or dry form. As the supply of artificial diet decreased, the allowance of biofloc biomass increased in the same proportion. Biofloc biomass was produced in two 500-L tanks that received daily applications of dry molasses to adjust the C: N ratio of the water to 15: 1. The concentration of nitrite in water was only reduced in the tanks receiving wet bioflocs. The fish growth performance was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Piscicultura; Tilápia aquaculture; Oreochromis; Water quality. Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27043 Tolerance of Nile tilapia juveniles to highly acidic rearing water Animal Sciences Rebouças, Vanessa Tomaz; Lima, Francisco Roberto dos Santos; Cavalcante, Davi de Holanda; Sá, Marcelo Vinícius do Carmo e. The present work aimed at determining the tolerance of Nile tilapia juveniles to highly acidic rearing waters and the effects of water acidity on the quality of tank effluents. The experimental design consisted of four treatments with different water pH values (4.12 ± 0.84; 5.13 ± 0.74; 6.14 ± 0.64 and 8.06 ± 0.48), with five replicates each. No exchange of water was performed throughout the study, only water replenishment to maintain the initial level. Variables of water quality, soil, growth performance, metabolism and effluents were monitored for eight weeks. Despite the lower total ammonia nitrogen (TAN) concentration in the pH 8 tanks, their levels of non-ionized ammonia (NH3) were the highest ones. At the end, the lowest body weight of fish was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Piscicultura; Tilápia aquaculture; Oreochromis niloticus; Acidophilic fish; Ammonia; PH. Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27031 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco