The objective of this experiment was to evaluate the physical alterations, productive and mortality tracts in layer quails during the fast. During the fast period, a completely randomized design with four treatments (0, 1, 2, and 3) days of fast, and three replicates of 36 birds per pen were used. In the beginning and at the end of the period of fast, 2 birds for pen were slaughtered, individually weighed to collect and evaluation of ovary, oviduct, and liver. The results showed a 25.64% reduction in the live weight, at the first three days of the fast period. In the same period, egg production fell to 2.81% and the mortality was 4.60%.
fast; forced molt; japanese quails; egg producti
