volume 39 issue 2 (july to december 2005) : 153 - 154
HERITABILITY ESTIMATES OF INTERNAL EGG QUALITY TRAITS IN TWO STRAINS OF WHITE LEGHORN LAYERS
1AICRP On Poultry Breeding,
ANGRAU, Hyderabad - 500 030, India
Published In
Indian Journal of Animal Research
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volume 39 issue 2 (july to december 2005) : 153 - 154
HERITABILITY ESTIMATES OF INTERNAL EGG QUALITY TRAITS IN TWO STRAINS OF WHITE LEGHORN LAYERS
1AICRP On Poultry Breeding,
ANGRAU, Hyderabad - 500 030, India
ABSTRACT
A study was undertaken on the inheritance pattern of various internal egg quality traits in
two strain of White Leghorn layers maintained at AICRP On Poultry Breeding, Rajendranagar,
Hyderabad. Three consecutive eggs were collected from each hen at 64 weeks of age and their
quality were studied within 24 hours after laying. Hatch corrected data were used to estimate
the heritability values. Significant strain differences were observed for all the parameters studied.
The egg weight was found to be highly heritable in both the strains (0.52 to 0.54), suggesting
that improvement of egg weight in both the strains is easier through mass selection. The haugh
unit, albumen index, yolk index were found to be moderately heritable indicating scope for
improvement of this trait through proper selection
two strain of White Leghorn layers maintained at AICRP On Poultry Breeding, Rajendranagar,
Hyderabad. Three consecutive eggs were collected from each hen at 64 weeks of age and their
quality were studied within 24 hours after laying. Hatch corrected data were used to estimate
the heritability values. Significant strain differences were observed for all the parameters studied.
The egg weight was found to be highly heritable in both the strains (0.52 to 0.54), suggesting
that improvement of egg weight in both the strains is easier through mass selection. The haugh
unit, albumen index, yolk index were found to be moderately heritable indicating scope for
improvement of this trait through proper selection
KEYWORDS
REFERENCES
- Acharya et a/. (1970) . Indian J. Anirn. Sci., 41: 381-385.
- Farnworth et a/. (1965). Poultry Sci., 34: 16-26.
- Hazel, L.N. and Terril, C.E. (1946). Indian J. Anim. Sci., 5: 371c377.
- Johari, D.C and Singh, B.P. (1968). Indian Vet. J., 45: 332-337.
- Kumar, J. and Kapari, B.D. (1966). Indian Vet. J., 45: 825-829.
- Rao, G.v.S et a/. (1976). Poultry Sci., 6: 22-25.
- Shibata, K. and Suzuki, S. (1965). Animal Breeding Abstracts, 35: 3802.
- Van Albada, M. (1961). Animal Breeding Abstracts, 30: 1962.
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In this Article
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Published In
Indian Journal of Animal Research