Optimum dietary crude protein requirement for juvenile cachama Piaractus brachypomus
A growth experiment was conducted to determine the optimal dietary protein requirement for juvenile cachama, Piaractus brachypomus. Six semi-purified isoenergetic experimental diets using casein and gelatin as protein sources were formulated to contain graded levels of protein (16, 20, 24, 28, 32 and 36%). Fish initially averaging 15.52±0.33g (mean±SD) were randomly distributed into the tanks (500L) as groups of 20 fish and fed to apparent satiation twice daily for 60 days. The results showed that feed consumption, feed conversion ratio, fish weight gain, specific growth rate, protein efficiency ratio and protein productive value were affected by dietary protein level (P<0.05) . No significant differences were observed in proximal composition of carcass (P<0.05) in response to dietary protein. Analysis of dietary protein level x WG with a second order polynomial regression suggested a requirement of 31.6% CP for optimum growth.
Principais autores: | Vásquez-Torres,Wálter, Pereira-Filho,Manoel, Arias-Castellanos,Jose Alfredo |
---|---|
Formato: | Digital revista |
Idioma: | English |
Publicado em: |
Universidade Federal de Santa Maria
2011
|
Acesso em linha: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011001200023 |
Tags: |
Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
|
Registros relacionados
-
Estimación de parámetros nutricionales básicos en juveniles de cachama blanca (piaractus brachypomus cuvier,1818)
por: Arias Castellanos, Alfredo
Publicado em: (2001) -
Estudio sobre parámetros nutricionales básicos en la cachama blanca (Piaractus brachypomus)
por: Arias Castellanos, José Alfredo
Publicado em: (2001) -
Acute toxicity and histopathological alterations of Roundup® herbicide on "cachama blanca" (Piaractus brachypomus)
por: Ramírez-Duarte,Wilson F., et al.
Publicado em: (2008) -
Physicochemical Evaluation of Cachama Fillets (Piaractus brachypomus) Preserved with Propolis during Storage
por: Suárez Mahecha, Héctor, et al.
Publicado em: (2014) -
Estudio sobre la anatomía macro y microscópica del sistema digestivo de la cachama blanca : piaractus brachypomus
por: Bobadilla Rey, Gabriel Fernando, et al.
Publicado em: (1997)