Data/hora: 06/06/2024 00:57:26

Provedor de dados: | 45
País: | Brazil
Título: | Performance and nutrient utilization in South American juvenile catfish Pseudoplatystoma spp. weighting 89 - 170g, fed at different energy and protein levels
Autores: | Teixeira,E.A.; Euler,A.C.C.; Faria,P.M.C.; Turra,E.M.; Luz,R.K.; Prado,S.A.; Takata,R.; Ribeiro,P.A.P.; Fontes,D.O.; Ribeiro,L.P.; Saliba,E.O.S.
Data: | 2013-10-01
Ano: | 2013
Palavras-chave: | Carnivorous species; Neotropical fish; Nutrition; Surubim.
Resumo: | Most studies in nutrition for the South American catfish (surubim) were limited to the initial phase of development. However, it is clear that performance and nutrient utilization can change during the life stages of a fish. Therefore, this study aimed to evaluate the performance and nutrient utilization in juveniles of surubim fed diets varying in protein and energy levels. Two experiments were performed to test different levels of energy and protein in formulated diets. In the first experiment, surubim juveniles (89.2±4.8g) were fed five diets containing different levels of energy (18.0, 18.8, 19.6, 20.5, 21.3 MJ/kg). In the second experiment, juveniles (170.03±3.35g) were fed five diets containing different levels of protein (360, 400, 440, 480 and 520g/kg). The most favorable energy level for weight gain was 20.3 MJ/kg. The increasing energy levels provided a rise in fat and decrease in protein whole-body composition. The protein amount was between 360 to 400g/kg (383g/kg), which was adequate for performance and nutrient assimilation in surubim juveniles.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000500031
Editor: | Universidade Federal de Minas Gerais, Escola de Veterinária
Relação: | 10.1590/S0102-09352013000500031
Formato: | text/html
Fonte: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia  v.65 n.5 2013
Fonte: | info:eu-repo/semantics/openAccess