الفهرس 
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Abstract
The wide uncontrolled use of antibiotics in poultry farms
specially after the huge expansion of the poultry industry in Egypt in
the last decade may cause dangerous hazard to consumer due to
antibiotic residues . So the following survey and experiments were
performed.
1 )Qualitative detection of antibiotic residues:-
Fifty marketed chicken broilers were collected randomly from
different poultry markets in Ismailia city samples were taken from
liver, kidneys, breast muscles and examined for antibiotic residues
by using general inhibitor test at both pH 6.0 and pH 8.0. The
incidence of antibiotic residues in the examined samples were 70 % ,
42 % , 36 % , 26 % and 46 % , 34 % , 16 010 ,4% respectively.
2) Qualitative detection of (Oxytetracycline, chloramphenicol and
streptomycin) residues experimentally :-
Forty two healthy chicken broilers were devided to three
groups each group contain fourteen chickens. Two from each group
were taken as control . The chicken broilers of each of the three
groups were injected with single therapeutic dose of oxytetracycline
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(1 ml/. kg b.wt.), chloramphenicol (1 ml/ kg b.wt.)and streptomycin
(1 ml/ kg . b. wt.) intramuscularly respectively .Two chickens were
slaughtered after 24, 48, 72, 96, 120 and 144 hr. from each group.
Samples but with little amount can be neglected while disappeared
from breast muscle and thigh muscle after 120 hr .
• Chloramphenicol residue was disappeared from most examined
samples after 48 hr. from injection except liver and kidneys still
found with inconsiderable amount.
• Streptomycin residue was detected in liver and kidneys examined
samples after 96 hr. from injection with permissible limit so
consider as a negative .
3)Effect of heat and low Temperatures:-
A) Boiling:-
Half of the liver and kidney , half of breast muscle and one
thigh muscle from the three groups were taken after 24 hr. post
treatment. The examined samples were put in distilled boiling water
at 100°C for 30 minutes. After cooling of the examined samples the
detection of antibiotic residues were carried out . The results showed