Single cell protein (troulla) as a source of protein in the rations of laying local and imported chickens during growth rearing and production

age alimentation des animaux alimentos concentrados animal feeding body parts breeds calidad proteica concentrates consommation alimentaire (animaux) consumo de piensos crecimiento croissance diet dieta eclosabilidad del huevo edad egg characters egg hatchability feed consumption fertilidad fertilite fertility gallina ponedora growth layer chickens laying performance levadura levure madurez sexual nucleic acids oviposition partes del cuerpo partie du corps performance de ponte peso poids poule pondeuse protein quality race razas rendimiento en la postura sexual maturity soybean meal tourteau de soja weight yeasts