Earticle

초록

영어

The objectives of this study were to estimate genetic parameters for 10 linear conformation traits and final score in Hanwoo cows. A total of 53,277 records for type traits of Hanwoo cows were collected from 2008 to 2012 from Korea Animal Improvement Association. Ten linear traits studied were stature, body length, chest depth, body rump angle, rump length, pin bone width, udder volume, foot angle, rear legs side view, and rear legs rear view. The model included the fixed effects of herd-year-classifier, age at measurement and age after calving, the random animal additive genetic effect and residual effect. Heritability estimates for linear type traits were ranged from 0.003 for rear legs side view to 0.213 for final score. Genetic correlations among linear type traits were ranged from -0.068 (for rear legs side view and rear legs rear view) to 0.982 (for body length and rump length). The final score was found to be in a strongest genetic correlation with rear legs rear view (0.947), followed by pin bone width (0.918), body length (0.887), rump length (0.883), chest depth (0.883), udder volume (0.811), stature (0.802), rump angle (0.637), foot angle (0.519) and rear legs side view (0.176). Corresponding phenotypic correlations for pairs of linear type traits were mostly similar in direction, but smaller than the genetic correlations.

목차

ABSTRACT
 Ⅰ. 서론
 Ⅱ. 재료 및 방법
  1. 공시재료
  2. 선형심사 형질 선별 및 측정
  3. 분석방법
 Ⅲ. 결과 및 고찰
  1. 기초분석 및 분산분석
  2. 선형심사 형질에 대한 유전력
  3. 유전 및 표현형 상관
 Ⅳ. 요약
 사사
 Ｖ. REFERENCES

저자

• 조충일 [ Chungil Cho | 농촌진흥청 국립축산과학원 ]
• 최태정 [ Taejeong Choi | 농촌진흥청 국립축산과학원 ]
• 조광현 [ Kwanghyun Cho | 농촌진흥청 국립축산과학원 ]
• 최재관 [ Jaegwan Choi | 농촌진흥청 국립축산과학원 ]
• 이승수 [ Seungsoo Lee | 농촌진흥청 국립축산과학원 ]
• 최연호 [ Yunho Choy | 농촌진흥청 국립축산과학원 ]
• Mahboob Alam [ 농촌진흥청 국립축산과학원 ]
• 구양모 [ Yangmo Koo | 한국종축개량협회 ]
• 이기환 [ Kihwan Lee | 한국종축개량협회 ]
• 박병호 [ Byoungho Park | 농촌진흥청 국립축산과학원 ] Corresponding author

참고문헌