ESTIMATES OF QUANTITATIVE GENETIC-PARAMETERS OF IMMUNOLOGICAL TRAITS IN THE CHICKEN

被引:53
作者
CHENG, S
ROTHSCHILD, MF
LAMONT, SJ
机构
[1] IOWA STATE UNIV SCI & TECHNOL, DEPT ANIM SCI, 201 KILDEE HALL, AMES, IA 50011 USA
[2] IOWA STATE UNIV SCI & TECHNOL, IMMUNOBIOL PROGRAM, AMES, IA 50011 USA
关键词
VARIANCE COMPONENTS; HERITABILITIES; CORRELATIONS; CHICKENS; IMMUNOCOMPETENCE;
D O I
10.3382/ps.0702023
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Three in vivo assays were used to measure the immunocompetence of chickens in two generations of a selection experiment. The obtained data were used to estimate the variance components for sire and dam for antibody production to Pasteurella multocida and Mycoplasma gallisepticum vaccines, for T-cell-mediated immunity evaluated by a phytohemagglutinin wing web assay, and for clearance of foreign particles from the circulatory system. Heritabilities of and genetic correlations among these immunological traits were calculated from the sire variance components. Heritability estimates of the immunological traits based on the sire component of variance ranged from .06 to .53, and genetic correlations among immunological traits were generally negative.
引用
收藏
页码:2023 / 2027
页数:5
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