000 03031cam a2200349 a 4500
003 EG-GiCUC
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008 190428s2018 ua d f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.10.06.M.Sc.2018.Ah.D
100 0 _aAhmed Abdelmonsef Abdelteif Drar
245 1 0 _aDetermination of heavy metals level in mugilcephalus and clariaslazera fishes /
_cAhmed Abdelmonsef Abdelteif Drar ; Supervised Mohamed F. Sedik , Nada K.M. Mansour , Mai A. Mohamed
246 1 5 _aتحديد مستوى المعادن الثقيلة فى أسماك البورى والقراميط
260 _aCairo :
_bAhmed Abdelmonsef Abdelteif Drar ,
_c2018
300 _a61 P. :
_bcharts , facimiles ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Veterinary Medicine - Department of Food Hygiene and Control
520 _aFish are considered as important source of protein, essential minerals, vitamins and unsaturated fatty acids. However, from nutritional and economic point of view, it may be a main source of heavy metals which can counteract their beneficial effects and may cause health hazards for human if consumed for long time.Therefore, eighty fish samples "Mugil cephalus and Clarias lazera" were randomly collected from Kafr- El-sheikh governorate, Egypt. Fish samples were collected from different sources (markets, captures and farms) and were analysed for heavy metals residues (Total Mercury, Lead, Cadmium and Zinc) in their flesh using Atomic Absorption Spectrophotometer (AAS). Fish samples collected from market revealed that the percent of samples exceeded the safe permissible limits for Hg, Pb and Cd that established by EOSQC (2010) were 35, 20 & 20% and 65, 55 &60% for Mugil cephalus and Clarias lazera respectively. Even though, fish samples were collected from capture showed that 30, 20&20% and 50, 40& 60% for Hg, Pb and Cd residues of Mugil cephalus and Clarias lazeraexceeded such safe permissible limits respectively. The results also showed that the percent of farmed fish samples exceeded the safe permissible limits were 30, 0 &10% and 70, 40 & 60% for Hg, Pb and Cd residues of Mugil cephalus and Clarias lazera respectively.The results also clarified that Zn concentration levels of both Mugil cephalus and Clarias lazera fish were higher than those of other examined heavy metals residues. Moreover,there were non- significant differences (p>0.05) in heavy metal concentration levels in flesh of Mugil cephalus and Clarias lazerawhich were collected from captures and farms
530 _aIssued also as CD
653 4 _aClarias lazera
653 4 _aHeavy metals
653 4 _aMugil cephalus
700 0 _aMai A. Mohamed ,
_eSupervisor
700 0 _aMohamed F. Sedik ,
_eSupervisor
700 0 _aNada K.M. Mansour ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c71706
_d71706