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Title:   Author  item
                                            Zhu, Jamesitem
                                            Lillehoj, Hyunitem
                                            Allen, Patriciaitem
                                            CHENG, H - ARS, EAST LANSING, MIitem
                                            EMARA, M - UNIV DELAWARE, NEWARKitem
                                            SADJADI, M - PERDUE FARMS, MDitem
                                            POLLOCK, D - PERDUE FARMS, MD
  Submitted to: Meeting Abstract
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 6/20/2001
                                    Publication  Date: N/A
                                    Citation: N/AInterpretive Summary:
                                Technical Abstract: To map quantitative trait loci (QTL) affecting disease resistance to avian coccidiosis, three hundred F2 offspring from12 full-sib families were produced from a cross of two commercial broiler lines for phenotyping and genotyping.  The F2 offspring were inoculated with 104 sporulated oocysts of E. maxima at 4 weeks  old. Body weight gain, fecal oocyst shedding, plasma NO2- + NO3-, carotenoid, and interferon-g concentrations were measured at three different time periods post-infection.  Seventy-two chicken microsatellite markers with an average marker interval of 50 cM were used for genotyping of the F1 and F2 chickens.  Nested analysis of variance based on single marker was used in statistical analysis.  The results displayed that there were several marker loci associated with disease associated-  parameters.


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