An experiment was conducted to determine the efficacy of Fermacto 500
(FER) as a nutritional aid in alleviating protein insufficiency caused
by a decrease in ingredient protein quality in diets for laying hens.
Egg production, egg weight, egg output, shell weight, and shell surfa
ce density were not affected by dietary treatments. Young hens fed FER
produced a higher percentage of extra large eggs. Inclusion of FER im
proved feed conversion for young and old hens. Statistically significa
nt differences were not detected in protein digestibility, though valu
es were consistently prolonged and determined metabolizable energy val
ues of diets were higher when FER was included in the diet. Our result
s demonstrate that, under conditions of this study, inclusion of FER a
t 0.2% improved feed utilization, and this was associated with feed st
aying longer in the digestive tract.