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Data/hora: 10/06/2024 02:57:17

Effects of digestible protein to energy ratios on growth and carcass chemical composition of siamese fighting fish (Betta splendens)
Provedor de dados: 64
Autores: Lemos,Marcos Vinicius Antunes de; Arantes,Thiago Quirino; Souto,Cristielle Nunes; Martins,Graciela Pessoa; Araújo,Janaína Gomes; Guimarães,Igo Gomes.
The expansion in the market of ornamental fish depends on the intensification of production systems and the generation of appropriate technologies. Therefore, it is necessary to know the nutritional requirements of each species for the formulation of nutritionally balanced diets. A 30-day feeding trial was undertaken to evaluate the effects of different dietary digestible protein to energy ratio in diets for Betta splendens fingerlings. Fifty-six all-male B. splendens with 1.03 ± 0.11 g average weight were randomly stocked into 56 1L-aquaria in a completely randomized design with a 2 x 4 factorial arrangement, comprising eight treatments and seven replication. Each fish was considered an experimental unit. Diets were formulated to contain 28.0, 35.0, 42.0...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protein requirement; Ornamental fish; Carcass composition; Energy requirement; Growth.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000100009

Protein to energy ratios in goldfish (Carassius auratus) diets
Provedor de dados: 64
Autores: Souto,Cristielle Nunes; Lemos,Marcos Vinicius Antunes de; Martins,Graciela Pessoa; Araújo,Janaína Gomes; Lopes,Karina Ludovico de Almeida Martinez; Guimarães,Igo Gomes.
The optimal dietary digestible protein to energy ratio is critical for the success of fish farming. Considering that it provides the proper development of the animals, this study was undertaken to evaluate the effects of different dietary digestible protein to energy ratio in diets for goldfish fingerlings. Diets were formulated to contain 28.0, 35.0, 42.0 and 49.0% DP and 3,600 and 3,200 kcal/kg. The growth parameters evaluated were daily weight gain (DWG), feed intake (FI), feed conversion ratio (FCR), protein efficiency ratio (PER), protein productive value (PPV) and energy retention ratio (ERR) and specific growth rate (SGR). Regardless FI, all the parameters were affected by protein and energy levels and interaction between both factors was observed....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy requirement; Feed intake; Growth protein requirement; Ornamental fish.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000600008