Dietary modifications of animal fats: status and future perspectives

agneau aliment pour animaux alimentation des animaux animal fats animal feeding aves de corral bovin carne cattle cerdo cordero corps gras animal digestion eggs feeds ganado bovino grasa de la leche grasas animales huevos lait lambs leche meat milk milk fat muscle muscles oeuf piensos porcin poultry saturated fatty acids swine tejido adiposo tissu adipeux unsaturated fatty acids viande volaille