Effects of zinc deficiency on enzyme activities, hormone, glucose, lipids and nitrogen compounds contents in serum of rats [for the purpose of improving quality of milk powder, especially zinc content]

agentes nocivos agronomic characters alimentos animal animal de laboratoire animal products animales animales de laboratorio animals azote azucares carbohidratos carbohydrates cinc composition contaminantes contaminantes industriales deficiencia de minerales deficiency diseases disorders dried milk dried products elements enzimas enzyme enzymes facteur nuisible foods functional disorders gases gaz glucide groupe de produits grupos de productos heavy metals hormonas hormone hormones industrial pollutants injurious factors laboratory animals leche en polvo lipide lipids maladie de carence mammals metabolic disorders metal metales metales pesados metals milk products mineral deficiencies nitrogen no metales nonmetals nutritional disorders organic compounds physical states polluant polluant industriel pollutants product groups productos productos de origen animal productos secos products produit produit alimentaire produit d'origine animale produit laitier rodents roedores rongeur sucres sugars trastornos trastornos funcionales trastornos nutricionales trouble trouble fonctionnel trouble nutritionnel vertebrados vertebrates vertebre zinc