Data/hora: 14/06/2024 03:02:10

Provedor de dados: | 96
País: | Brazil
Título: | Phytase in diets for Nile tilapia in the growth period
Autores: | Bock,Claudio Luiz; Pezzato,Luiz Edivaldo; Cantelmo,Osmar Angelo; Barros,Margarida Maria.
Data: | 2007-10-01
Ano: | 2007
Palavras-chave: | Excretion; Fish; Growth; Oreochromis niloticus; Phosphorus; Pollution.
Resumo: | This research was carried out to compare the effect of phytase on performance, in the incorporation and excretion phosphorus in Nile tilápia. Four diets were used: one standard (contol), composed by 3,200 DE kcal ED/kg of ration and 30.0% CP and supplemented with phosphorus (4.0% of dicalcium phosphate), considering the treatment control, and others three, without phosphorus supplementation, with different phytase levels (1,000, 1,500, and 2,000 uf/kg), with four replication, per a period of 82 days. Circular tanks of fiber glass, with constant flow and aeration were used. The results demonstrated that the use of phytase in diets for fish production can reduce the levels of inorganic phosphorus in the diets and minimizing the impacts caused by phosphorus in the production system and in the natural environment and also can improve the productivity, increasing the amount of feed to be supplied and, consequently, facilitating the increase of biomass of fish to be used per production area.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007000700001
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982007000700001
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.36 n.5 suppl.0 2007
Fonte: | info:eu-repo/semantics/openAccess