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한우에 있어 6개월령 및 12개월령 체척측정치의 유전력과 유전상관
이정규,박영일,신언익 ( J . G . Lee,Y . I . Park,O . I . Shin ) 한국축산학회 1984 한국축산학회지 Vol.26 No.5
The object of this study was to estimate the heritabilities, phenotypic and genetic correlations among certain body measurements in Korean Native Cattle. The experimental animals for this study were 248 heads of Korean Native Cattle from 49 sires born from 1971 to 1982 at the Alpine Experiment Station in Pyung-Chang, Korea. The traits included in this study were withers height, chest width, chest girth, body length and thud width at 6 month and 12 month of age, The results obtained are summarized as follows; 1. The heritability estimates obtained in this study were 0.19 and 0.21 for withers height at 6 and 12 month, 0.15 and 0.45 for chest width at 6 and 12 month, 0.27 and 0.61 for chest girth at 6 and 12 month, 0.14 and 0.50 for body length at 6 and 12 month, 0.27 and 0.67 for thud width at 6 and 12 month. 2. The ranges of genetic, environmental and phenotypic correlations among body measurements at 6 month of age were 0.31-0.98, 0.33-0.65 and 0.39-0.64, respectively. The ranges of correlations among body measurements at 12 month of age were 0.62-1.09, 0.52-0.45 and 0.32-0.54, respectively. 3. The heritability estimates for 6-month body measurements were lower than for 12-month body measurements. The genetic correlations among body measurements at 6 or 12 month of age were high and positive, while the genetic correlations between body measurements at 6 and 12 month of age have shown much variation depending on the combinations of the traits.
한우에 있어 일당증체량 (日當增體量) , 단위증체당 (單位增體當) DCP 및 TDN 의 유전력과 유전상관
이정규(J . G . Lee),박영일(Y . I . Park),신언익(O . Y . Shin) 한국축산학회 1984 한국축산학회지 Vol.26 No.2
The object of this study was to estimate the heritabilities, phenotypic and genetic correlations among average daily gain, DCP consumed per unit gain and TDN consumed per unit gain in Korean Native Cattle. The experimental animals for this study were 248 heads of Korean Native bulls from 49 sires born from February, 1971 to January, 1983 at the Alpine Experiment Station at Pyung-chang, Korea. Calves were weaned at about six month of age. The traits included in this study were postweaning average daily again, DCP consumed per unit gain and TDN consumed per unit gain. The results obtained are summarized as follows; 1. The effect of season of birth was significant for DCP and TDN consumed per unit weight gain. The effect of age of dam was significant for average daily gain. 2. The heritability estimate of postweaning performance traits was 0.73±0.24 for average daily gain, 0.62±0.23 for DCP consumed per unit gain and 0.471±0.21 for TDN consumed per unit gain. 3. The genetic correlations of average daily gain with DCP and TDN consumed per unit gain were -0.96 and -0.78, respectively, and phenotypic correlations were -0.53 and -0.49 and environmental correlations were 0.36 and -0.08. The genetic, phenotypic and environmental correlations between DCP consumed per unit gain and TDN consumed per unit gain were 0.78, 0.91 and 1.08, respectively.
최재완(J.W.Choi),임선종(S.J.Lim),이정규(J.G.Lee),강용근(Y.G.Gang),박경택(K.T.Park),김기엽(G.Y.Kim) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
This paper proposes LM method for solving bin-picking problem in robot vision. It has the processing steps such as image enchancement, image thresholding, region labelling, and moment computation. To determine a target object from bined objects, the modified labelling method is used. To determine position and orientation of holdsite, the moment method is used. Finally, some experiment results are illustated and compared with the results of conventional shrinking algorithm. The proposed LM method has reduced processing time.