돼지의 Leptin receptor 유전자내 초위성체 다형성에 따른 개체별 성장곡선 특성
Characteristics of Individual Growth Curve by PorcineLEPR-derived Microsatellite Polymorphisms
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본 연구는 재래돼지와 랜드레이스 품종을 기초축으로 조성한 F2 집단의 일령별 체중 자료를 이용하여 비선형 회귀에 의해 추정한 개체별 성장곡선 모수 및 성장 특성치에 대한 LEPR 관련 초위성체 표지인자의 다형성에 따른 효과를 추정함으로써 Leptine 수준에 따른 성장 형질의 특성을 규명하고자 실시하였다.조사된 F2 집단에 대해 개체별 성숙체중(A
Abstract
This study was conducted to estimate the growth curve parameters of 253 heads of F2 population produced by inter-crossing F1 from Korean Native boars and Landrace sows, and to estimate the effects of Leptin receptor gene(LEPR) on their growth characteristics. Growth curve parameters were estimated from nonlinear regression using Gompertz model individually. Average mature weight and average maturing rate estimated were 179.69 4.40kg and 0.3103 0.0043, respectively. The effect of sex was insignificant for all the parameters estimated from Gempertz model(p 〉.05), and the effect of calving group was significant for mature weight and maximum growth rate at inflection point (p〈 .05). The effect of LEPR genotype were significant for all the growth curve parameters(p〈 .05). According from the results of the least squares means of growth curve parameters by LEPR genotypes, mature weight and point of inflection were highest in genotype AA in which the maturing rate was the lowest, and were lowest in genotype DD in which maturing rate was the highest, reversely.