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British Poultry Science Volume 33, 1992 - Issue 5
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Meat and egg science

Heritabilities and correlations for egg shell crack frequency, body checking, egg number and egg weight in laying hens

G. S. Brah Poultry Breeding Unit, Department of Animal Science, Punjab Agricultural University, Ludhiana, 141004, India
,
M. L. Chaudhary Poultry Breeding Unit, Department of Animal Science, Punjab Agricultural University, Ludhiana, 141004, India
&
J. S. Sandhu Poultry Breeding Unit, Department of Animal Science, Punjab Agricultural University, Ludhiana, 141004, India
Pages 947-951 | Received 23 Apr 1991, Published online: 08 Nov 2007

References

  • Becker , W.A. 1984 . Manual of Quantitative Genetics, , 4th edn. , Pullman, WA, , U.S.A. : Academic Enterprises .
  • Engstrom , G. , Weyede , 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 .
  • Owen , O.B. 1962 . Handbook of Statistical Tables, , Addison Wesley Publishing Co. Inc. .
  • Roland , D.A. 1978 . The incidence of body‐checked and misshapen eggs in relation to the number of hens per cage and time of oviposition. . Poultry Science, , 57 : 1705 – 1709 .
  • Roland , D.A. 1984 . Egg shell quality I: The body‐checked eggs. . World's Poultry Science Journal, , 40 : 250 – 254 .
  • Washburn , K.W. 1982 . Incidence, cause and prevention of egg‐shell breakage in commercial production. . Poultry Science, , 61 : 2005 – 2012 .

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