The effect of nutrition and age of growing pigs on vitamin A and E concentrations in blood plasma

additif additif alimentaire additives aditivos aditivos alimentarios age aliment pour animaux alimentos para animales anatomia anatomia animal anatomie anatomie animale anatomy animal animal anatomy animal domestique animal pour cuirs et peaux animales animales de carne animals antioxidantes antioxidants antioxydant appareil digestif artiodactyla artiodactyle biological development blood body fluids body parts cerdo crecimiento croissance digestive system domestic animals edad feeds fisiologia foie fonction physiologique food additives ganado growth liquide biologique liver livestock mammals meat animals nutrition organic compounds partes del cuerpo partie du corps physiological functions physiologie physiology porcin proteine proteins retinol sang sangre sistema digestivo swine tocoferoles tocopherol tocopherols vertebrados vertebrates vertebre vitaminas vitamine vitamins