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RISS 인기검색어
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- 저자 : 李黃田 (검색결과 1 건)
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李基萬,李黃田,鄭吉生 건국대학교 1977 學術誌 Vol.21 No.2
A total of 1627 Korean cattle were studied to measure live weight, withers height, body length, chest girth, belly girth, carcass weight and to calculate correlation coefficients among traits studied as well as to make linear regression equation. Among traits studied, the highest correlation coefficient was the correlation of chest girth with carcass weight. At interval of 10cm of chest girth, every regression equation was calculated, and according to this equation estimated carcass weights were tabled. 1.All average values of traits studied over 3 year cattle, the male values were higher than the female one. The larger variation of belly girth in female will be due to the cause of pregnant cows. 2.The correlation of chest girth with carcass weight was the highest of all traits studied, except for the trait of live weight. The correlation coefficients of chest girth with carcass weights were r = 0.693, r = 0.806 in both sexes, respectively. 3.The linear regression equations of live weight, withers height, body length, chest girth, belly girth on carcass weight were calculated. 4.Instead of complicated formulae, the simple regression equations of chest girth on carcass weight were calculated at intervals of 10cm chest girth and estimated carcass weight was tabled.
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