| Value | Category | 
                                    
                    
                        | 0 | None | 
                                    
                    
                        | 1 | Vaccination | 
                                    
                    
                        | 2 | Disease | 
                                    
                    
                        | 3 | Feed/ nutrition | 
                                    
                    
                        | 4 | Insemination | 
                                    
                    
                        | 5 | Other | 
                                    
                    
                        | 6 | Shelter | 
                                    
                    
                        | 7 | MiDA | 
                                    
                    
                        | 8 | Marketing | 
                                    
                    
                        | Sysmiss |  | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.