The
research has been conducted to study the effect of adding zeolite to the ration on the
production performance of mice (Mus musculus). The litter of the first (LS12) and second (LS2)
from the same mice which received rations added with zeolite for a long period of time were
used in this experiment. The rations with different level of zeolite ( 0,3, 6 and 9%) were used for
male and female experimental mice from LS1 and LS2. Randomized Complete Design (RCD)
with two factors, namely level of zeolite and sex, with six replication used in this experiment.
The result showed that added zeolite to the ration did not affect feed consumption but
significantly increased body weight gain and feed efficiency, reduced water and protein content
of feces but significantly increased protein digestibility. Mortality rate in this experiment was
very low ( 1.6 "β 2.41%). It could be concluded that added zeolite to the ration up to 9% give
better performances of the experimental mice