Influence of keeping pigs heavily fouled with faeces on skatole and indole concentration (boar taint) in subcutaneous fat

abattoir abattoirs boars calidad carne de cerdo cerdo contamination escatole faeces feces floors heces higiene de la carne indol indoles mataderos meat hygiene odeur olor orina pisos plancher porcin pork quality skatole smell swine temperatura temperature urine verraco verrat viande porcine