Browsing by Author "Safari Kinung'hi Methusela"

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    Studies on Prevalence and Economic Impact of Poultry Coccidiosis in Different Production Systems in Debrezeit and Addis Ababa Ethiopia
    (AAU, 2001-12) Safari Kinung'hi Methusela; Tilahun Getachew
    CoccidIa infectJons In poultry are prevalent and causes ~ignificant economIC losses worldwide lr: Ethlop!;).. prenous studies did not anempt to sub..,tantially assessment of economic losses due (,) coccldIOSi.:.. This stud~ \\ as deSigned to determlilc the pre\'alence of poultry coccidiOSIS. Ident':':- species of coccidia mvoh'ed. examine pathological changes associated wuh coccidIa mfectlo:-:. and assess the economic Impact of the disease JO small scale and large scale poultry farms !:" urban and peri-urban areas of Ethiopia. The study population consiqed of broiler and layer chicken in 26 poultry farms. They included 5 large scale broiler farmc;, :: large scale layer farm" with deep Jitter reanng system . ..l large scale layer farms with cage re~lrin£ syqe:n. 12 !.ll1all sCCll..: I:IroIie:- farm::. and 3 smal1 ::.cale pullet rearing farm:;, both with deep litter rearing systems. F;}ecal sClmples were randoml) collected from al! poultry farms a\ follo\\ s. ~5-30 s:!mples iroll, every small scale farm and 35-75 samples from e\'ery large scale fJrm. Overall lO28 f~eca: ~.J.mple!. \\ere collected. Qualitative and quanlHative faecal examinallons \~ere earned out uSln; SImple salt floatation and modIfied .\1c.\laster techniques. respectively Sporulation of co.:cicl<' OO:YSb \\ as done followed by micros .... opic exanllnJtion for shape and SIZt: Further. a sample of ~~O birds w:!:, rJndom!~ seleCtee The sekctcc ":)m!.~ \'. ;!r;!~lSifibuke