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dc.contributorRomdhane, Rihaben_US
dc.contributorBouaicha, Fatenen_US
dc.contributorSaddem, Rahmaen_US
dc.contributorSassi, Limamen_US
dc.contributorDhibi, Mokhtaren_US
dc.contributorRekik, Mouraden_US
dc.contributorHaile, Aynalemen_US
dc.contributorMwacharo, Joramen_US
dc.contributorRischkowsky, Barbaraen_US
dc.contributorDarghouth, Mohamed Azizen_US
dc.contributorGharbi, Mohameden_US
dc.creatorRouatbi, Mariemen_US
dc.identifier.citationMariem Rouatbi, Rihab Romdhane, Faten Bouaicha, Rahma Saddem, Limam Sassi, Mokhtar Dhibi, Mourad Rekik, Aynalem Haile, Joram Mwacharo, Barbara Rischkowsky, Mohamed Aziz Darghouth, Mohamed Gharbi. (25/6/2020). Individual variability among autochthonous sheep in Northern Tunisia to infection by abomasum nematodes and Babesia/Theileria parasites. Veterinary Medicine and Science.en_US
dc.description.abstractIn Tunisia, livestock plays an important role in the economy; unfortunately, Tunisian sheep population faces several health challenges. The aim of this trial was to study phenotypic variability of four local sheep breeds and strains to abomasum nematodes infection and toBabesia/Theileriaparasites. Faeces, blood and abomasum contents were collected from 310 sheep slaughtered in eight commercial slaughterhouses across North Tunisia. Haematological and biochemical parameters were assessed. DNA was extracted and catch-all primers were used to detect bothTheileriaspp. andBabesiaspp. DNA. Faecal egg counts (FEC) was quantitatively assessed using simple flotation technique followed by McMaster technique. Male and female worms were collected from all abomasum contents and counted under a stereomicroscope. The percentage of faeces samples positive for GIN's eggs was 30.82%. After worms' recovery, the infection prevalence was estimated to 75.90%. The overall infection prevalence byBabesiaspp. andTheileriaspp. was 4.21%. The dispersion of observations plots obtained by principal component analysis (PCA) showed two clusters of individuals. The first cluster contains animals having positiveBabesia/TheileriaPCR, presence of nematodes in the abomasum contents and relatively low total worm count (TWC < 500) expect one animal which was found bearing high TWC (>500). In this same group, with a suspected form of resistance, animals showed normal values of albumin and normal haematological parameters (red blood cell count [RBC], haemoglobin [Hb] and packed cell volume [PCV]). The second cluster represents all the other observations in which subgroups of animals were distinguished on the basis of their potential resistance to abomasum nematodes. Multiple correlations showed significant positive correlations between RBC/Hb, RBC/PCV, PCV/Hb and FEC/TWC. Significant negative correlations were observed between TWC/RBC and TWC/Hb. It is concluded that the phenotypic variability among local sheep breeds is essential for more advanced genetic and genomic studies.en_US
dc.sourceVeterinary Medicine and Science;(2020)en_US
dc.subjectabomasum nematodesen_US
dc.titleIndividual variability among autochthonous sheep in Northern Tunisia to infection by abomasum nematodes and Babesia/Theileria parasitesen_US
dc.typeJournal Articleen_US
cg.creator.idRekik, Mourad: 0000-0001-7455-2017en_US
cg.creator.idHaile, Aynalem: 0000-0001-5914-0487en_US
cg.creator.idMwacharo, Joram: 0000-0001-6981-8140en_US
cg.creator.idRischkowsky, Barbara: 0000-0002-0035-471Xen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerManouba University - UMAen_US
cg.contributor.crpCGIAR Research Program on Livestock Agri-Food Systems - Livestocken_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionNorthern Africaen_US
cg.isijournalISI Journalen_US
dc.identifier.statusOpen accessen_US
cg.journalVeterinary Medicine and Scienceen_US

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