A.M. Abdelmoniem Impact of Some Marker and Major Genes on Chicken Performance

A.M. Abdelmoniem Impact of Some Marker and Major Genes on Chicken Performance

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The effect of presence naked neck (Na), frizzle (F) and double segregation genes on incubation traits, production performance, immunocompetence and eggshell ultrastructure of chicken were studied. A higher production performance make todays chickens more susceptible to heat stress than ever before. The increasing proportion of poultry production in tropical and subtropical regions makes it necessary to reconsider the long-term selection strategy of todays commercial breeding programmes. The importance of the potential use of the naked neck and frizzle genes is accentuated.

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