Serum ANGPTL4 and FGF2, energy-related blood biochemicals, cytokine responses and oxidative stress in dairy cows with subclinical ketosis
Ankara Üniversitesi Veteriner Fakültesi Dergisi(2023)
Abstract
In this study, it was aimed to investigate the serum levels of ANGPTL4, FGF21, IL-1 beta, IL-6, SOD, MDA, and serum biochemical and hematological parameters in cows with subclinical ketosis. The mean serum beta-hydroxybutyric acid (BHB) level was 1.37 +/- 0.04 mmol/L in 10 dairy cows aged 3-5 years that were <21 days postpartum and diagnosed with subclinical ketosis. The mean serum BHB level was 0.40 +/- 0.08 mmol/L in 10 healthy dairy cows in the same period and in the same age range. An increase in serum AST (P<0.001) and a decrease in serum albumin levels (P<0.05) indicated altered liver functions. An increase in serum non-esterified fatty acid (P<0.001) and decreases in serum HDL, triglyceride, and total cholesterol levels (P<0.05) were interpreted as indicators of increased metabolic pathology risk due to negative energy balance. Increases in serum ANGPTL4, FGF2, IL-1 beta, IL-6, and MDA (P<0.001) and SOD levels (P<0.05) were evaluated as indicators of the development of effective metabolic, inflammatory, and oxidative stress. It was concluded that significant increases in serum ANGPTL4, FGF2, IL- 1 beta, IL-6, and MDA and SOD levels in dairy cows with subclinical ketosis were associated with negative energy balance, effective cytokine responses, and oxidative stress.
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Key words
Cytokines,Dairy cows,Energy-related biochemical,Hepatokines,Subclinical ketosis
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