Physiology of the nutritive-dependent reproduction ability of broiler breeders

animal embryos animal reproducteur animal reproductor brain breeding stock broiler chickens cerebro eclosabilidad del huevo egg hatchability egg production embriones animales embryon animal fertilidad fertilite fertility gonadotrophine gonadotropinas gonadotropins hormonas de la tiroide hypophyse ovaire ovaries ovarios performance de reproduction pituitary gland pollo de engorde poulet de chair production d'oeufs reproduction reproductive performance reproductividad somatotropin somatotropina somatotropine thyroid hormones viabilidad viability