Energia metabolizável de alimentos utilizados na formulação de rações para papagaios-verdadeiros (Amazona aestiva)

Abstract

A total of 34 blue fronted parrot were allotted in blocks with 17 treatments (T1 – reference diet, T2 – sunflower seed, T3 – oat, T4 – egg yolk, T5 – integral egg, T6 – egg white, T7 – wheat germen, T8 – wheat bran, T9 triturated corn, T10 – jellied corn, T11 – sunflower bran, T12 – yeast, T13 – citric pulp, T14 – papaya, T15 – banana, T16 – soy bran, T17 extruded soy) during three periods, totaling six repetitions (102 experimental units). For feedstuffs evaluation by using a substitution methodology. Were determined the metabolizable coefficients of crude energy (apparent – CMAE, true – CMVE, apparent corrected by N – CMAnE and true corrected by N – CMVnE) and the values of metabolizable energy (apparent – EMA, true – EMV, apparent nitrogen corrected – EMAn and true nitrogen corrected – EMVn) of the tested feedstuffs. All feedstuffs were statistically analyzed. The metabolizable coefficients of EB were compared by the Scott–Knott test , while for the energetics feedstuffs values were analyzed as a descriptive analysis (means and standard deviation). The obtained results allowed to conclude that: 1 – the apparent metabolizable energy of the sunflower seed shown high value and the use of this feed as a only feed source should be used in medium period to avoid the obesity in the birds in maintenance state ; 2 – the energetic feeds as the triturated corn, wheat bran, wheat germen, soybean meal and extruded soy for parrots were similar the those found in the literature for domestic birds, mainly broiler chickens, suggesting that the extrapolation the digestibility energy data of domestic birds mainly broilers should be used for parrots ratios calculations , until that a feedstuffs table for psittacines is set up definitively.