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Current IssueEditorial BoardOnline First ArticlesArchive

volume 42 issue 4 (december 2008) : 257-260

ESTIMATION OF HERITABILITY AND CORRELATION OF ECONOMIC TRAITS IN IWP STRAIN OF WHITE LEGHORN CHICKEN

P
P. Veeramani
K
K. Narayanankutty
R
R. Richard Churchil
1AIRP on Poultry Improvement, College of Veterinary and Animal Sciences, Mannuthy, Kerala-680 651, India

  • Submitted|

  • First Online |

  • doi

Cite article:- Veeramani P., Narayanankutty K., Churchil Richard R. (2025). ESTIMATION OF HERITABILITY AND CORRELATION OF ECONOMIC TRAITS IN IWP STRAIN OF WHITE LEGHORN CHICKEN. Indian Journal of Animal Research. 42(4): 257-260. doi: .

ABSTRACT

The data on age at first egg (ASM), 16, 40 and 64 week body weight (Bw16, Bw40, Bw64), 28
and 40 week egg weight (Ew 28, Ew40) and egg production up to 40 and 64 weeks age (En40, En64)
pertaining to 20th generation of IWP strain from 2112 progenies belonging to 50 sires and 300 dam
formed the basis of this study. The mean values for age at first egg (ASM), body weights (Bw 16,
Bw40 and Bw64), egg weights (Ew28, Ew40) and egg production up to 40 and 64 weeks age (En40,
En64) recorded were 137 days, 1.131 kg, 1.651 kg, 1.712kg, 50.42 g, 54.01g, 121.21and 246.40
eggs respectively. The Heritabilities of ASM, egg weight and egg production was low to moderate.
Higher heritability was recorded for body weight at various intervals. Positive correlation observed
between both egg weight characters on genetic and phenotypic scale as well as between body
weight characters. Negative correlation was noticed between ASM and Egg production on both
genetic and phenotypic scale. Negative correlation was noticed between Egg weight and Egg
production on both genetic and phenotypic scale.

KEYWORDS

    REFERENCES

    1. Anonymous (1999). Annual Progress Report, All India Co-ordinated Poultry Improvement Project, Mannuthy Centre. p-40.
    2. Anonymous (2002). Annual Progress Report, All India Co-ordinated Poultry Improvement Project, Mannuthy Centre. p-43.
    3. Bais, R.K.S. et al., (1997). Indian J. Poult. Sci. 32:189-91.
    4. Chaubal, D.V. et al., (1994). Indian J. Poult. Sci., 29:211-17.
    5. Dickerson, G.E. (1960). Am. Soc. Anim. Prod., 56:105.
    6. Goulden, C.H. (1962). Methods of Statistical Analysis. John Wiley and Sons, Inc., New York.
    7. Harvey W.E. (1979). Least Squares Analysis of Data with Unequal Sub-class Numbers. Agricultural Research Service,
    8. United States Department of Agriculture.
    9. King, S.C. and Henderson, C.R. (1954). Poult. Sci., 33:147-54.
    10. Kumararaj, R. et al., (1995). Indian J. Anim. Sci., 65:770-74.
    11. Poggenpoel, D.G. et al., (1996). Br. Poult. Sci., 37:743-56.
    12. Robertson, A. (1959). Biometrics, 15:468-85.
    13. Singh, R.P. et al., (1986). Indian J. Poult. Sci., 21:1-4.
    14. Singh, N.P et al., (1996). Indian J. Anim. Sci., 66:806-10.
    15. Verma, S.K. et al., (1983). Indian J. Anim Sci., 53:1113-17.
    16. Vasu, Y. et al., (2004). Indian J. Poult. Sci., 39(1):1-8.
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    Indian Journal of Animal Research
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      volume 42 issue 4 (december 2008) : 257-260

      ESTIMATION OF HERITABILITY AND CORRELATION OF ECONOMIC TRAITS IN IWP STRAIN OF WHITE LEGHORN CHICKEN

      P
      P. Veeramani
      K
      K. Narayanankutty
      R
      R. Richard Churchil
      1AIRP on Poultry Improvement, College of Veterinary and Animal Sciences, Mannuthy, Kerala-680 651, India

      • Submitted|

      • First Online |

      • doi

      Cite article:- Veeramani P., Narayanankutty K., Churchil Richard R. (2025). ESTIMATION OF HERITABILITY AND CORRELATION OF ECONOMIC TRAITS IN IWP STRAIN OF WHITE LEGHORN CHICKEN. Indian Journal of Animal Research. 42(4): 257-260. doi: .

      ABSTRACT

      The data on age at first egg (ASM), 16, 40 and 64 week body weight (Bw16, Bw40, Bw64), 28
      and 40 week egg weight (Ew 28, Ew40) and egg production up to 40 and 64 weeks age (En40, En64)
      pertaining to 20th generation of IWP strain from 2112 progenies belonging to 50 sires and 300 dam
      formed the basis of this study. The mean values for age at first egg (ASM), body weights (Bw 16,
      Bw40 and Bw64), egg weights (Ew28, Ew40) and egg production up to 40 and 64 weeks age (En40,
      En64) recorded were 137 days, 1.131 kg, 1.651 kg, 1.712kg, 50.42 g, 54.01g, 121.21and 246.40
      eggs respectively. The Heritabilities of ASM, egg weight and egg production was low to moderate.
      Higher heritability was recorded for body weight at various intervals. Positive correlation observed
      between both egg weight characters on genetic and phenotypic scale as well as between body
      weight characters. Negative correlation was noticed between ASM and Egg production on both
      genetic and phenotypic scale. Negative correlation was noticed between Egg weight and Egg
      production on both genetic and phenotypic scale.

      KEYWORDS

        REFERENCES

        1. Anonymous (1999). Annual Progress Report, All India Co-ordinated Poultry Improvement Project, Mannuthy Centre. p-40.
        2. Anonymous (2002). Annual Progress Report, All India Co-ordinated Poultry Improvement Project, Mannuthy Centre. p-43.
        3. Bais, R.K.S. et al., (1997). Indian J. Poult. Sci. 32:189-91.
        4. Chaubal, D.V. et al., (1994). Indian J. Poult. Sci., 29:211-17.
        5. Dickerson, G.E. (1960). Am. Soc. Anim. Prod., 56:105.
        6. Goulden, C.H. (1962). Methods of Statistical Analysis. John Wiley and Sons, Inc., New York.
        7. Harvey W.E. (1979). Least Squares Analysis of Data with Unequal Sub-class Numbers. Agricultural Research Service,
        8. United States Department of Agriculture.
        9. King, S.C. and Henderson, C.R. (1954). Poult. Sci., 33:147-54.
        10. Kumararaj, R. et al., (1995). Indian J. Anim. Sci., 65:770-74.
        11. Poggenpoel, D.G. et al., (1996). Br. Poult. Sci., 37:743-56.
        12. Robertson, A. (1959). Biometrics, 15:468-85.
        13. Singh, R.P. et al., (1986). Indian J. Poult. Sci., 21:1-4.
        14. Singh, N.P et al., (1996). Indian J. Anim. Sci., 66:806-10.
        15. Verma, S.K. et al., (1983). Indian J. Anim Sci., 53:1113-17.
        16. Vasu, Y. et al., (2004). Indian J. Poult. Sci., 39(1):1-8.
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