青岛农业大学学报(自然科学版)
青島農業大學學報(自然科學版)
청도농업대학학보(자연과학판)
JOURNAL OF QINGDAO AGRICULTURAL UNIVERSITY
2014年
4期
251-254
,共4页
李桢%刘福庆%马焕发%寇鑫
李楨%劉福慶%馬煥髮%寇鑫
리정%류복경%마환발%구흠
琅琊鸡%体型性状%主成分分析
瑯琊鷄%體型性狀%主成分分析
랑야계%체형성상%주성분분석
Langya chickens%Body composition traits%Principal components analysis
测定60只400日龄的琅琊鸡(♂30,♀30)的8个体型性状并应用主成分分析法进行分析,为琅琊鸡的选育计划的制订以及性状选择提供参考。结果表明:种公鸡的8个体型性状可简化为4个主成分,累计贡献率达84.21%,可从这4个主成分中选取体长(或体斜长)、胫长、胸宽、颈围为代表性的性状指标;母鸡的8个体型性状可简化为4个主成分,累计贡献率达82.22%,可从这4个主成分中选取体长(或体斜长)、胫长、龙骨长、颈围为代表性的性状指标。
測定60隻400日齡的瑯琊鷄(♂30,♀30)的8箇體型性狀併應用主成分分析法進行分析,為瑯琊鷄的選育計劃的製訂以及性狀選擇提供參攷。結果錶明:種公鷄的8箇體型性狀可簡化為4箇主成分,纍計貢獻率達84.21%,可從這4箇主成分中選取體長(或體斜長)、脛長、胸寬、頸圍為代錶性的性狀指標;母鷄的8箇體型性狀可簡化為4箇主成分,纍計貢獻率達82.22%,可從這4箇主成分中選取體長(或體斜長)、脛長、龍骨長、頸圍為代錶性的性狀指標。
측정60지400일령적랑야계(♂30,♀30)적8개체형성상병응용주성분분석법진행분석,위랑야계적선육계화적제정이급성상선택제공삼고。결과표명:충공계적8개체형성상가간화위4개주성분,루계공헌솔체84.21%,가종저4개주성분중선취체장(혹체사장)、경장、흉관、경위위대표성적성상지표;모계적8개체형성상가간화위4개주성분,루계공헌솔체82.22%,가종저4개주성분중선취체장(혹체사장)、경장、용골장、경위위대표성적성상지표。
In order to provide references for writing selection programs and determination of selection traits for Langya chickens,the principal components methodology was used to analyze 8 body composition traits of 60 Langya chickenss at the age of 400 d (♂30,♀30).In cocks ,the first four principal components ex-plained about 84.21% of the total variation,trunk length(body slope length),shank length,breast width and neck circumference could be identified as principal traits;In hens ,the first four principal components explained about 82.22% of the total variation,trunk length(body slope length),shank length,keel length and neck circumference could be identified as principal traits.