CAJ | 학술논문

利用200只6月龄、18月龄辽宁绒山羊母羊的皮肤样品,分析了年龄、出生类型、母亲年龄等非遗传因素对毛囊性状的影响,估计了毛囊性状的遗传力及其与产绒量、体重、绒直径的表型相关和遗传相关.结果表明:除次级毛囊/初级毛囊(S/P)值以外其它毛囊性状随年龄的增长变化显著(P＜0.01);除次级毛囊密度以外,其它性状在出生类型间无显著差异(P＞0.05).S/P值、次级毛囊密度、初级毛囊内径在母亲年龄间差异极显著(P＜0.01).S/P值、次级毛囊密度、初级毛囊密度的遗传力分别为0.534,0.137,0.160,次级毛囊外径、初级毛囊外径、次级毛囊内径、初级毛囊内径、次级毛囊深度和初级毛囊深度的遗传力分别为0.584,0.080,0.187,0.496,0.002和0.204.这些毛囊性状与生产性能的表型相关都较低.S/P值与产绒量、体重、绒直径的遗传相关系数分别为0.680,0.423,-0.343,次级毛囊外径与产绒量、绒直径的遗传相关系数分别为0.450和0.489.认为辽宁绒山羊的S/P值受非遗传因素影响较小,遗传力高、与生产性能的遗传相关高,在辽宁绒山羊选育中是一个非常有意义的性状,选择高S/P值,不仅能够提高产绒量,而且在辽宁绒山羊种群中其后代绒直径不会变粗.
이용200지6월령、18월령료녕융산양모양적피부양품,분석료년령、출생류형、모친년령등비유전인소대모낭성상적영향,고계료모낭성상적유전력급기여산융량、체중、융직경적표형상관화유전상관.결과표명:제차급모낭/초급모낭(S/P)치이외기타모낭성상수년령적증장변화현저(P＜0.01);제차급모낭밀도이외,기타성상재출생류형간무현저차이(P＞0.05).S/P치、차급모낭밀도、초급모낭내경재모친년령간차이겁현저(P＜0.01).S/P치、차급모낭밀도、초급모낭밀도적유전력분별위0.534,0.137,0.160,차급모낭외경、초급모낭외경、차급모낭내경、초급모낭내경、차급모낭심도화초급모낭심도적유전력분별위0.584,0.080,0.187,0.496,0.002화0.204.저사모낭성상여생산성능적표형상관도교저.S/P치여산융량、체중、융직경적유전상관계수분별위0.680,0.423,-0.343,차급모낭외경여산융량、융직경적유전상관계수분별위0.450화0.489.인위료녕융산양적S/P치수비유전인소영향교소,유전력고、여생산성능적유전상관고,재료녕융산양선육중시일개비상유의의적성상,선택고S/P치,불부능구제고산융량,이차재료녕융산양충군중기후대융직경불회변조.