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Selection for body weight at eight weeks of age in Dandarawi chicken. II - realized heritabilities and correlated response to selection for growth measurements


Selection for body weight at eight weeks of age in Dandarawi chicken. II - realized heritabilities and correlated response to selection for growth measurements



Egyptian Poultry Science Journal 19(3): 691-707



Body measurement data were recorded for 4 generations of Dandarawi fowls (1995-1998) from a line which had been selected for increased 8 week body weight since March 1995 and from an unselected control line. Effective and expected secondary differentials were higher for males than females due to higher selection intensities. Realized heritability of 8-week body weight was 0.18-0.39 and was higher for females (0.44-0.86) than males (0.06-0.28).

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