Changes in clinical and blood lipid metabolism parameters in Holstein dairy cattle during the transition period

The transition period is a critical period in the production cycle of the dairy cow. This study aimed to describe the clinical and biochemical changes, particularly lecithin: cholesterol acyltransferase (LCAT) and apolipoprotein B-100 (ApoB-100), during the transition period in dairy cattle. It was conducted on Holstein dairy cattle (n=80) classified into control cows (n=61) and diseased cows (n=19). They belonged to dairy farms in Ebetsu city, Hokkaido area, Japan. Body condition score (BCS) was significantly reduced in postfresh control cows when they were compared to those of close-up control group. Serum LCAT and apoB-100 were remarkably increased (P