SciELO - Scientific Electronic Library Online

 
vol.35 issue6Development of Iguaçu surubim (Steindachneridion melanodermatum) larvae fed different diets author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Revista Brasileira de Zootecnia

Print version ISSN 1516-3598On-line version ISSN 1806-9290

Abstract

BOCK, Cláudio Luis; PEZZATO, Luiz Edivaldo; CANTELMO, Osmar Ângelo  and  BARROS, Margarida Maria. Phytase and nutrient apparent digestibility of diets fed to Nile tilapia. R. Bras. Zootec. [online]. 2006, vol.35, n.6, pp.2197-2202. ISSN 1516-3598.  http://dx.doi.org/10.1590/S1516-35982006000800001.

The nutrient apparent digestibility of diet with increasing phytase levels based on vegetable ingredients fed to 90 Nile Tilapia juveniles averaging 120.0 g and allotted to none tanks (ten fishes/tank) was determined. The experiment was analyzed as a complete randomized design with nine treatments and six replicates. The treatments consisted of: control (with phosphorus supplementation) and eight treatments without phosphorus supplementation (with 500, 1,000, 1,500, 2,000, 2,500, 3,000, 3,500, and 4,000 units of phytase [UF]/kg of diet). All diets were formulated to be isoenergy and isoprotein. The 1,500 UF treatment increased DM and GE digestibility and dietary Ca and P availability. The 1,000 UF treatment increased Zn and Mn availability.

Keywords : mineral; Oreochromis niloticus; phosphorus; tilapia.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License