Development and reactivity of the immune system in different genetic hosts [broiler chickens - turkeys]

animal breeding animal performance antibodies anticorpi anticorps anticuerpos broiler chickens dieta dindon disease resistance gain de poids ganancia de peso genetic variation genotipi genotipos genotypes immune response incremento di peso macrofagi macrofagos macrophage macrophages mejoramiento animal pavo performance animale polli da carne pollo de engorde poulet de chair prestazioni degli animali resistencia a la enfermedad resistenza alle malattie risposta immunitaria tacchini turkeys variazione genetica weight gain