摘要
采用平均类间连锁法依据12个鹅胴体和羽绒性状的公共因子对123个观测个体进行聚类分组和遗传评估。结果表明,当观测个体被分成6组(G1、G2、G3、G4、G5、G6组)时,组间的因子得分具有显著差异;各组产肉力、产毛力和净膛率得分以G1和G2组较高,这些个体的产肉和产毛性能优越,同时具有低脂、肉系水性好、羽绒疏水性强等特点;而脂肪酸品质、产脂力、腿肉率、肌肉水损失、消化力、心功能、绒品质和绒亲水性8个因子得分均以G5和G6组为优,这些个体的脂肪酸品质、羽绒品质以及心胃的辅助性能优越,同时具有腿部肌肉发达,易肥胖,肌肉系水性差等特性。G3和G4则介于两者之间,但其羽型的得分较高。
123 geese were clustered using between-groups linkage based on 12 common factors of 40 goose carcass and feather-down traits and divided into 6 groups. By analysing difference among groups, productivity of Wanxi White goose × Sichuan White goose were estimated. The results showed that the difference among groups was significant while all geese were divided into 6 groups. The factor scorings of meat power, feather-down power, and eviscerated percentage were higher in group 1 and group 2, which indicated that geese in group 1 and group 2 had a superiority in meat- and feather-yield capability, and had lower fat, better meat hold-water capability, and lower down hydrophilicity. The factor scorings of fatty acid quality, fat power, leg muscle percentage, meat water loss, digestion, heart function, down quality, and down hydrophilicity were higher in group 5 and group 6, which indicated that geese in group 5 and group 6 had a preponderance in goose meat and down quality, and had leg muscle upgrowth, fatness, and lower holdwater capability. Group 3 and group 4 had higher factor scoring in freather-type, and other factor scorings were middlebrow.
出处
《畜牧兽医学报》
CAS
CSCD
北大核心
2006年第8期749-755,共7页
ACTA VETERINARIA ET ZOOTECHNICA SINICA
基金
安徽省"十五"人才基金
安徽省教育厅自然科学基金(2006KJ169B)资助
关键词
鹅
遗传评估
聚类分析
因子分析
goose
genetic estimation
cluster analysis
factor analysis