risque (1) recherche (1) productivité (1) produit (1) minéral (1) lait (1) littérature (1) revenu (1) santé (1) effet (1) science économique (1) calcium (1) Context (1) Causes (1) Prevention (1) Weights and measures (1) Struggle (1) Scarcity (1) Risk (1) Research (1) Profit (1) Milk yield (1) Milk plants (1) Milk fever (1) Milk (1) Literature (1) Income (1) Health (1) Farmers (1) Evidence (1)