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Characteristics of Individual Growth Curve by Porcine LEPR-derived Microsatellite Polymorphisms

돼지의 Leptin receptor 유전자내 초위성체 다형성에 따른 개체별 성장곡선 특성

  • Cho, Y.M. (National Livestock Research Institute, RDA.) ;
  • Choi, B.H. (National Livestock Research Institute, RDA.) ;
  • Kim, T.H. (National Livestock Research Institute, RDA.) ;
  • Lee, J.W. (National Livestock Research Institute, RDA.) ;
  • Cheong, I.C. (National Livestock Research Institute, RDA.)
  • 조용민 (농촌진흥청 축산기술연구소) ;
  • 최봉환 (농촌진흥청 축산기술연구소) ;
  • 김태헌 (농촌진흥청 축산기술연구소) ;
  • 이지웅 (농촌진흥청 축산기술연구소) ;
  • 정일정 (농촌진흥청 축산기술연구소)
  • Published : 2003.12.31

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${\pm}$4.40kg and 0.3103${\pm}$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.

Keywords

Leptin receptor;Growth Curve Parameter;Gompertz Model

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