Significant sire by location interactions exist for poultry production traits when reared in different environments.
Sire evaluation must incorporate location-specific testing; leaves open optimal multi-environment breeding strategies.
A total of 529 progeny arising from 19 sires, which had been selected on the basis of their daughters’ body weight (heavy, medium or light) were reared in Berlin, West Germany and Kuala Lumpur, Malaysia to test for sire x location interactions for production and egg composition traits. 2. Highly significant sire x location interactions were found for sexual maturity, egg production, egg weight, food consumption and egg mass. 3. For egg composition traits, significant interactions were found in some but not all periods for shell breaking strength and albumen : yolk ratio. 4. Highly significant location effects were found for all traits studied except sexual maturity, whereas significant sire effects were found mainly for the productive traits, shell breaking strength and albumen : yolk ratio.
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Mukherjee et al. (1980) studied this question.
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