Genetic Parameters Of Feed Efficiency T.raits And Their Relationships W ith Egg Quality Traits In Laying Period Of Ducks
文献类型: 外文期刊
作者: Tian, Y.;Zhang, H.;Zeng, T.;Lu, L.;Shen, J.;Chen, L.;Liu, J.
作者机构:
关键词: RFI; feed efficiency; genetic parameter; egg quality; laying duck
期刊名称: POULTRY SCIENCE
ISSN: 0032-5791
年卷期: 2018 年 97 卷 3 期
页码:
摘要: The objective of this study was to estimate genetic parameters for feed efficiency and relevant traits in 2 laying duck breeds, and to determine the relationship of residual feed intake (RFI) with feed efficiency and egg quality traits. Phenotypic records on 3,000 female laying ducks (1,500 Shaoxing ducks and 1,500 Jinyun ducks) from a random mating population were used to estimate genetic parameters for RFI, feed conversion ratio (FCR), feed intake (FI), BW, BW gain (BWG), and egg mass laid (EML) at 42 to 46 wk of age. The heritability estimates for EML, FCR, FI, and RFI were 0.22, 0.19, 0.22, and 0.27 in Shaoxing ducks and 0.14, 0.19, 0.24, and 0.24 for Jinyun ducks, respectively. RFI showed high and positive genetic correla-tions with FCR (0.47 in Shaoxing ducks and 0.63 in Jinyun ducks) and FI (0.79 in Shaoxing ducks and 0.86 in Jinyun ducks). No correlations were found in RFI with BW, BWG, or EML at either genetic or phenotypic level. FCR was strongly and negatively correlated with EML (-0.81 and -0.68) but inconsistently correlated with FI (0.02 and 0.17), suggesting that EML was the main influence on FCR. In addition, no significant differences were found between low RFI (LRFI) and high RFI (HRFI) ducks in egg shape index, shell thickness, shell strength, yolk color, albumen height, or Haugh unit (HU). The results indicate that selection for LRFI could improve feed efficiency and reduce FI without significant changes in EML or egg quality.
分类号:
- 相关文献
作者其他论文 更多>>
-
Genome-wide association study identifies variants associated with semen volume in white-feathered broilers
作者:Zhang, G. M.;Liu, P. H.;Chen, L.;Zheng, J. M.;Zhao, G. P.;Xing, W. H.;Wen, J.;Li, Q. H.
关键词:GWAS;semen volume;white-feathered broiler
-
Drought and Heat Stress-Mediated Modulation of Alternative Splicing in the Genes Involved in Biosynthesis of Metabolites Related to Tea Quality
作者:Ding, Y. Q.;Fan, K.;Wang, Y.;Fang, W. P.;Zhu, X. J.;Chen, L.;Sun, L. T.;Qiu, C.;Ding, Z. T.
关键词:tea;Camellia sinensis (L.);O. Kuntze;alternative splicing;amino acids;flavonoids;volatile compounds
-
Effects of phenylpyruvate on the growth performance and intestinal microbiota in broiler chicken
作者:Talpur, M. Z.;Peng, W.;Zeng, Y.;Xie, P.;Li, J.;Zhang, H.;Shu, G.;Jiang, Q.
关键词:Phenylpyruvate;performance;intestinal morphology;immunity;microbiota
-
Development of A Universal Calibration Platform for Watershed Models Using Global Optimization
作者:Chen, L.;Wang, W. Z.;Wei, G. Y.;Wang, K.;Liu, H. B.;Zhai, L. M.;Shen, Z. Y.
关键词:watershed model;calibration;parameter;universal platform;NSGA-II;SWMM;HSPF
-
Acute heat stress alters the expression of genes and proteins associated with the unfolded protein response pathway in the liver of broilers
作者:Miao, Q. X.;Si, X. Y.;Xie, Y. J.;Chen, L.;Tang, X. F.;Zhang, H. F.
关键词:Acute heat stress;unfolded protein response;endoplasmic reticulum;apoptosis;hormone;broiler
-
Occurrence Of Prophage And Historical P.erspectives Associated With The D issemination Of Huanglongbing In Mainland China
作者:Bai, Z.;Fu, S.;Liu, J.;Wang, X.;Hartung, J. S.;Su, H.;Zhou, C.
关键词:bacteriophage; 'Ca; Liberibacter asiaticus'; epidemiology; huanglongbing (HLB)
-
Genome-Wide Analyses Reveal The Role Of Noncoding Variation In Complex Traits During Rice Domestication
作者:Chen, J.;Zheng, X. M.;Olsen, K. M.;Wang, H.;Liu, S.;Pang, H. B.;Liu, J.;Yang, Q. W.;Wang, J. R.;Gao, Q.;Qiao, W. H.
关键词: