This study evaluated a phytogenic feed additive
for broiler chickens. A total of 1,632 broiler chicks were
distributed into four treatments: negative control (without
growth promoter); positive control (avilamycine, 10ppm +
colistin, 15ppm); and two alternative treatments with 150ppm
of phytogenic additive, one with a reduced Ca and P levels diet
(PA-R1) and the other with lower energy, and amino acids,
besides Ca and P (PA-R2). The trial was conducted with 12
replicates, each consisted of a pen with 34 birds. The alternative
diets showed body weight intermediate to the two controls at 42
days, with no significant (P>0.05) treatment effect on feed
conversion ratio. No treatment differences (P>0.05) on carcass
yield and composition was observed. There was a tendency of
abdominal fat lipids saturation, when the phytogenic additive
was used, as possible consequence of a decreased level of
soybean oil in the diets. A difference (P