References
- Brah , G.S. 1989 . Genetics of components of embryonic mortality and other incubation traits in chickens , Ludhiana, , India : Punjab Agricultural University . Ph.D. Thesis
- Crittenden , L.B. , Bohren , B.B. and Anderson , V.L. 1957 . Genetic variance and covariance of the components of hatchability in New Hampshires . Poultry Science , 36 : 90 – 103 .
- Cunningham , E.P. 1969 . Animal Breeding Theory , Published by Landbruks bekhandalen/Univer‐sities forlaget vollebekk/Oslo .
- Harvey , W.R. 1966 . Least‐squares Analysis of Data with Unequal Subclass Numbers , Washington D.C. : United States Department of Agriculture .
- Hunton , P. 1969 . Variance and covariance of hatchability and some of its components in chickens . British Poultry Science , 10 : 261 – 272 .
- Kinney , T.B. 1969 . A summary of reported estimates of heritability and of genetic and phenotypic correlation for traits in chickens , Washington D.C. : United States Department of Agriculture . Agriculture Handbook No. 363
- Robertson , A. and Lerner , I.M. 1949 . The heritability of all‐or‐none traits: viability of poultry . Genetics , 34 : 395 – 411 .
- Snedecor , G.W. and Cochran , W.G. 1967 . Statistical Methods , Ames, Iowa : The Iowa State University Press .