文献类型： 外文期刊
作者： Xu Tieshan 3 ; Liu Xiaolin 2 ; Huang Wei 1 ; Hou Shuisheng 1 ; Ye Baoguo 4 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Anim Sci, State Key Lab Anim Nutr Sci, Beijing 100193, Peoples R China
2.NW A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Shanxi, Peoples R China
3.CATAS, Trop Crop Genet Resource Res Inst, Danzhou 571737, Hainan, Peoples R China
4.Hainan Acad Agr Sci, Inst Anim Sci & Vet, Haikou 571100, Hainan, Peoples R China
关键词： Pekin duck;heritability;genetic correlation;slaughter performance;leanness;China
期刊名称：JOURNAL OF ANIMAL AND VETERINARY ADVANCES （ 影响因子：0.365； 五年影响因子：0.359 ）
ISSN： 1680-5593
年卷期： 2011 年 10 卷 23 期
页码：
收录情况： SCI
摘要： Traditional force feed technology produced excessive fat ducks and could not meet the wide range needs. This reseaerch studied the possibility of breeding muscular Pekin duck. Data collection was performed in an experimental Pekin duck line. At 7 weeks of age, 285 ducks were selected according to their pedigree to measure the traits studied in this study. Single and multiple trait analyses were used to estimated heritability and variance components by Restricted Maximum Likelihood. Heritability estimation of Body Weight (BW), Keel Length KL), Breast Breadth (BB) and Breast Meat Thickness (BMT) were moderate to high (0.20 similar to 0.53). The heritability for Breast Muscle Weight (BMW) and Breast Meat Percentage (BMP) were 0.50 and 0.47, respectively suggesting an increase of breast meat development could be achieved by selection. The heritability of Abdominal Fat Weight (AFW), Abdominal Fat Percentage ( AFP), Leg Muscle Weight (LIVEN) and Leg Muscle Percentage (LMP) were 0.23, 0.32, 0.38 and 0.16, respectively. The genetic correlation between BW and those of BMW and BMP were 0.74 and 0.25 which suggest that BMP, not BMW may be a selection criterion for muscular Pekin duck. The genetic correlation between BMP and those of KL, BB and BMT were 0.69, 0.69 and 0.71, respectively. The genetic correlation between BMP and AFP was -0.03 therefore, body size traits could be used as the selection index for improving the BMP and selecting for higher BMP should not decrease the leanness. In conclusion, higher BMP and lower AFP Pekin duck could be achieved.
- 相关文献
