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    Relationships between the Postpartum Body Condition Score, Colostral IgG Content, Liver Lipid Metabolism and Oxidative Stress in Dairy Cows
    (2022) Kurtdede, Efe; Kurtdede, Arif; Kara, Erdal; Er, Mehmet Ba; Gülendağ, Erman
    His study aimed to evaluate the relationships between the postpartum body condition score (BCS)\rand colostral IgG, lipid metabolism, liver functions and oxidative stress parameters in dairy cows\rwith BCSs of ?3.5 and >3.5.\rThis investigation included 60 dairy cows of the same breed, that were 3-5 years old and had given\rtwo or more births in a dairy farm. Care was taken to ensure that the BCS changes of the cows\rwere <0.5 from the dry period to calving.\rIn the 30 cows with a BCS of ?3.5 within 24 hours of birth, the mean BCS level was 3.24±0.24 and\rthe mean serum ?-hydroxybutyric acid (BHBA) level was 0.36±0.07. In the 30 cows with a BCS of\r>3.5 within 24 hours of birth, the mean BCS level was 3.96±0.14 and the mean serum BHBA level\rwas 0.38±0.07.\rCompared to the values determined in cows with a BCS >3.5, serum non-esterified fatty acids\r(NEFA), high-density lipoprotein (HDL), paraoxonase-1 (PON-1) and malondialdehyde (MDA)\rlevels were significantly lower, and triglyceride, albumin, SOD and colostral IgG levels were\rsignificantly higher in cows with a BCS of ?3.5.\rIt was concluded that a BCS change of <0.5 from the drying period to parturition and a postpartum\rBCS of ?3.5 in dairy cows would be beneficial for better management of the metabolic process,\roxidative stress and high colostral IgG level.