Selection for egg shell strength in laying hens using shell membrane characteristics

References

• Arnason , T. 1982 . “ Genetic studies on conformation and performance of Islandic Toelter horses ” . In Thesis Report 59 , 755 97 Uppsala, , Sweden : Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics .
   Google Scholar
• Bonitz , W. and Flock , D.K. . Can shell strength be improved by conventional selection? . Proceedings of XIX World's Poultry Congress . Amsterdam. Vol. 3 , pp. 95 – 97 .
   Google Scholar
• Engström , G. , Weyde , C. and Liljedahl , L.‐E. 1986 . Genetic correlations and heritabilities for frequency of cracked eggs, egg number and egg weight in laying hens . British Poultry Science , 27 : 55 – 61 .
   Web of Science ®Google Scholar
• Graser , H.U. , Smith , S.P. and Tier , B. 1987 . A derivative‐free approach for estimating variance components in animal models by Restricted Maximum Likelihood . Journal of Animal Science , 64 : 1362 – 1370 .
   Web of Science ®Google Scholar
• Henderson , C.R. . Sire evaluation and genetic trends . Proceedings of the animal breeding and genetics symposium in honour of Dr. J.L Lush . pp. 10 – 41 . Campaign, Illinois : ASAS and ASDA .
   Google Scholar
• Johansson , K. 1987 . Evaluation of station testing of pigs. II Multiple trait versus single trait estimation of genetic parameters for meat quality traits . Acta Agriculturae Scandinavica , 37 : 108 – 119 .
   Web of Science ®Google Scholar
• Kermanshahi , H. and Golian , A.G. . Effects of various sources of calcium upon egg shell quality and laying hen performance . Proceedings of the 4th European Symposium on the Quality of Eggs and Egg Products . pp. 147 – 158 . Doorwerth : Holland .
   Google Scholar
• Kukkola , I. and Alaspää , M. 1988 . Hönsekonomiska försöksanstaltens rapport för perioden 1986–1988 . Siipikarja , 10 : 325 – 329 .
   Google Scholar
• Kuit , A.R. and Zeelen , H.M.M. . Progress in egg shell quality during 35 years of random sample testing of laying hens in The Netherlands . Proceedings of XIX World's Poultry Congress . Amsterdam. Vol. 1 , pp. 730 – 733 .
   Google Scholar
• Liljedahl , L.E. , Kolstad , N. , Sorensen , P. and Maijala , K. 1979 . Scandinavian selection and crossbreeding experiment with laying hens. 1. Background and general selection outline . Acta Agricultra Scandinavica , 29 : 273 – 286 .
   Web of Science ®Google Scholar
• Örberg , J. 1990 . Relationship between the shell membrane‐shell bond and shell deformation in hens’ eggs . British Poultry Science , 31 : 249 – 254 .
   Web of Science ®Google Scholar
• Rodda , D.D. 1972 . Breeding for late egg shell quality in the domestic hen . British Poultry Science , 13 : 45 – 60 .
   Web of Science ®Google Scholar
• Roland , D.A. 1988 . Egg shell problems: Estimates of incidence and economic impact . Poultry Science , 67 : 1801 – 1803 .
   Web of Science ®Google Scholar
• Simons , P.C.M. 1971 . Ultrastructure of the hen eggshell and its physiological interpretation . Agricultural Research Reports , 758 : 1 – 90 . Thesis. Wageningen Agricultural University.
   Google Scholar
• Solomon , S.E. 1985 . Eggshell quality. A structural evaluation . Poultry International , 24 : 58 – 62 .
   Google Scholar
• Solomon , S.E. 1991 . Egg and eggshell quality , London : Wolfe Publishing Ltd .
   Google Scholar
• Solomon , S.E. 1992 . Can eggshell structure measure quality? . Poultry International , 31 ( 4 ) : 24 – 28 .
   Google Scholar
• Sorensen , D.A. and Kennedy , B.W. 1983 . The use of the relationship matrix to account for genetic drift variance in the analysis of genetic experiments . Theoretical and Applied Genetics , 66 : 217 – 220 .
   PubMed Web of Science ®Google Scholar
• Weyde , C. and Liljedahl , L.E. 1984 . Specialised compared with index selection for two genetically antagonistic traits in laying hens . Annales Agriculturae Fenniae , 23 : 204 – 210 .
   Google Scholar