Abstract:
The study was conducted at College of Animal Production Science and
Technology , Sudan University of Science and Technology. One hundred and
fourty four day_old broiler chicks were used. They randomly allotted to four
treatment of 36 chicks of 3 replicated to determined the effect of added Y_Mos
on broiler performance .Four iso_caloric and iso_nitrogeous diets were
formulated contained graded levels of Y_Mos 0% , 1% , 0.8% ,0.6% as
group A,B,Cand D , respectivety. Each experimental group was fed its signed
diet for 42days as experimental period .The results showed that there was no
significant different(P≤0.05) in the daily feed intake g/bird/day a monge
experimental groups. There was significant different(p≤0.05) in daily weihgt
gain (g) a monge experimental groups .Group of B(0.06%Y_Mos)has a highly
value of(3.880±8.58)followed by group D of(3.579±16.42), group C
of(3.547±13.331), group A of(3.427±14.024). For liver weight (g) , gizzard
weight (g) , abdominal fat weight (g) ,mortality (%) no significant deferent was
observed. A highly FCR recorded by group C of (1.520±0.044) while a carcass
weight value of(1.496±0.051) was observed by group B .
Commonly the results showed that the addition of y_mos had No
negative effect on health and mortality throughout experimental period.
