Variations in parameters of liver function and plasma progesterone related to underfeeding and ketosis in a dairy herd [aspartate aminotransferase, glutamate dehydrogenase, sorbitol dehydrogenase]

acetoacetate acetoacetates acetoacetatos acide biliaire bile acids bilirrubina bilirubin bilirubine bovin laitier cetose cetosis cows dairy cattle enzimas enzyme enzymes foie ganado de leche ketosis liver malnutrition progesterona progesterone vaca vache