الفهرس 
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Abstract
In the first experiment, two group of 60 bird,
Matroh and L.S.L. and fed commercial laying ration
for 14 weeks to study their perfermance of egg
production and shell quality.
(1) Egg number and egg production rate was found to
be highly significant between the two breeds ,
where the average Matroh production was 59.65%
while in L.S.L. was 26.22 % .
. ~2) There was no si~nificant difference between the
average egg weight in the two breeds ranged
from 40 - 42 gm.
(3) The egg shell weight and shell thi~kness was
found higher in Matroh breed than in L.S.L and
this significant difference may be species
characteristics and not due to the ration fed.
Shell calcium percent in each breed ranged
between 35 - 31 % and this result indicate that
the amount of calcium secreted in the egg shell
nearly constant and not affected by breed.