[Zinc deficiency in pigs for slaughter, effect on clinical symptoms, growth and feed consumption]

aliment pour animaux alimentation individuelle animales de carne body weight calcio calcium cerdo cinc consommation alimentaire (animaux) consumo de piensos deficiencia de oligoelementos diagnosis diagnostic feed consumption feeds growth rate individual feeding meat animals mineral nutrients noruega norway nutrientes minerales nutritional disorders parakeratose parakeratosis paraqueratosis peso corporal piensos poids corporel porcin raciones ration rations swine symptome symptoms taux de croissance trace element deficiencies trastornos nutricionales trouble nutritionnel zinc