This document discusses metabolic diseases in animals. It provides information on several conditions including hypocalcemia (milk fever), ketosis, fatty liver syndrome, retained placenta, and hypomagnesaemia (grass tetany). For each condition, it describes the definition, causes, clinical signs, treatment, and important factors for successful treatment. Diagnosis, proper treatment methods, drug choice and administration route, and treatment duration are highlighted as key to achieving a good outcome. The case emphasizes the importance of obtaining a thorough case history, clinical examination and laboratory tests for accurate diagnosis.