Performance of indigenous, exotic and commercial varieties of chickens in North America
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Format: | Texto biblioteca |
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1973
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Subjects: | AGA AGR, BREEDS (ANIMALS), CHICKENS, PRODUCTIVITY, EGGS, PERFORMANCE TESTING, ANIMAL BREEDING, POULTRY, RACE (ANIMAL), POULET, PRODUCTIVITE, OEUF, CONTROLE DE PERFORMANCE, RAZAS (ANIMALES), POLLO, PRODUCTIVIDAD, HUEVOS, PRUEBAS DE RENDIMIENTO, AMELIORATION DES ANIMAUX, VOLAILLE, MEJORAMIENTO ANIMAL, AVES DE CORRAL, |
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