표제지
목차
I. 서론 12
II. 연구사 14
1. 토종닭의 정의 14
2. 일반능력 16
3. 잡종강세 19
4. 결합능력 21
III. 재료 및 방법 24
1. 공시동물 24
2. 시험 장소 및 기간 24
3. 사양관리 25
4. 능력검정항목 25
1) 체중 25
2) 산란능력 25
3) 난중 26
4) 시산일령 26
5) 생존율 26
5. 분석방법 26
1) 일반능력 26
2) 잡종강세 27
3) 결합능력 27
IV. 결과 및 고찰 30
1. 일반능력 30
1) 산육능력 및 생존율 30
2) 산란능력 35
2. 잡종강세 39
1) 산육능력 및 생존율 39
2) 산란능력 43
3. 결합능력 46
1) 분산분석 46
2) 일반결합능력 48
3) 특정결합능력 51
4) 상반교잡효과 56
5) 일반결합능력 및 특정결합능력에 근거한 조합가 추정 61
V. 결론 64
VI. 참고문헌 67
VII. 국문초록 71
ABSTRACT 73
Table 1. The 5 × 5 diallel cross breeding plan and number of chickens. 24
Table 2. Analysis of variance for Griffing's method I. 28
Table 3. Body weight during growth periods in 5×5 diallel crossed chickens. 32
Table 4. Body weight during laying periods in 5×5 diallel crossed chickens. 33
Table 5. Viability at growing and laying periods in 5×5 diallel crossed chickens. 34
Table 6. Egg production performance in 5×5 diallel crossed chickens. 36
Table 7. Heterosis ratio of body weight at 4weeks in 5×5 diallel crossed chickens. 39
Table 8. Heterosis ratio of body weight at 8weeks in 5×5 diallel crossed chickens. 40
Table 9. Heterosis ratio of body weight at 12weeks in 5×5 diallel crossed chickens. 40
Table 10. Heterosis ratio of body weight at 24weeks in 5×5 diallel crossed chickens. 41
Table 11. Heterosis ratio of body weight at 32weeks in 5×5 diallel crossed chickens. 41
Table 12. Heterosis ratio of body weight at 40weeks in 5×5 diallel crossed chickens. 41
Table 13. Heterosis ratio of viability at laying periods in 5×5 diallel crossed chickens. 42
Table 14. Heterosis ratio of age at first laying in 5×5 diallel crossed chickens. 43
Table 15. Heterosis ratio of average of egg weight in 5×5 diallel crossed chickens. 44
Table 16. Heterosis ratio of hen-housed egg production in 5×5 diallel crossed... 45
Table 17. Heterosis ratio of hen-day egg production in 5×5 diallel crossed chickens. 45
Table 18. Mean square of combining ability analysis for traits of body weight during... 46
Table 19. Mean square of combining ability analysis for traits of body weight during... 46
Table 20. Mean square of combining ability analysis for traits of viability. 47
Table 21. Mean square of combining ability analysis for traits of egg productivity. 47
Table 22. General combining ability of body weight during growth periods. 48
Table 23. General combining ability of body weight during laying periods. 48
Table 24. General combining ability of viability. 49
Table 25. General combining ability of egg productivity. 50
Table 26. Estimates of specific combining ability effects for body weight at 4weeks. 52
Table 27. Estimates of specific combining ability effects for body weight at 8weeks. 52
Table 28. Estimates of specific combining ability effects for body weight at 12weeks. 52
Table 29. Estimates of specific combining ability effects for body weight at 20weeks. 52
Table 30. Estimates of specific combining ability effects for body weight at 32weeks. 53
Table 31. Estimates of specific combining ability effects for body weight at 40weeks. 53
Table 32. Estimates of specific combining ability effects for viability during growth... 53
Table 33. Estimates of specific combining ability effects for viability during laying... 54
Table 34. Estimates of specific combining ability effects for age at first egg laying. 54
Table 35. Estimates of specific combining ability effects for average of egg weight. 55
Table 36. Estimates of specific combining ability effects for hen-housed egg... 55
Table 37. Estimates of specific combining ability effects for hen-day egg production. 55
Table 38. Estimates of reciprocal effects for body weight at 4weeks. 56
Table 39. Estimates of reciprocal effects for body weight at 8weeks. 56
Table 40. Estimates of reciprocal effects for body weight at 12weeks. 57
Table 41. Estimates of reciprocal effects for body weight at 20weeks. 57
Table 42. Estimates of reciprocal effects for body weight at 32weeks. 57
Table 43. Estimates of reciprocal effects for body weight at 40weeks. 58
Table 44. Estimates of reciprocal effects for viability during growth periods. 59
Table 45. Estimates of reciprocal effects for viability during laying periods. 59
Table 46. Estimates of reciprocal effects for age at first egg laying. 59
Table 47. Estimates of reciprocal effects for average of egg weight. 60
Table 48. Estimates of reciprocal effects for hen-housed egg production. 60
Table 49. Estimates of reciprocal effects for hen-day egg production. 60
Table 50. Estimation of mean value of cross combination of 12w body weight based... 61
Table 51. Estimation of mean value of cross combination of hen-housed egg... 62
Table 52. Estimation of mean value of cross combination of viability at laying periods... 63
Figure 1. The growth pattern and body weight in 5×5 diallel crossed chickens. 35
Figure 2. Egg production curve in 5×5 diallel crossed chickens. 38