The objective of this study was to compare periparturient serum Ca dynamics (CaDyn) in cows with and without diseases in early lactation. The study enrolled 1,949 cows from a commercial dairy farm in northern Germany. Blood samples were drawn 7 d before expected calving date and on d 0, 1, 3, and 7 ...

The aim of this study is to determine differences in metabolic adaptation in first week after calving between healthy and cows that develop ketosis type I (diagnosed 3-6 weeks after calving) or II (diagnosed 2-3 weeks after calving) after calving. Experiment included 50 healthy cows, 50 ketosis I...

This randomized controlled trial investigated the effects of temporarily reducing milking frequency (MF) on the resolution of ketosis and milk production in dairy cows in early lactation. To detect ketosis [blood β-hydroxybutyrate (BHB) ≥1.2 mmol/L], Holstein cows were screened daily from 3 to 16 d ...

We investigated changes in concentrations of ADP (adiponectin), LEP (leptin), BHBA (beta-hydroxybutyric acid), NEFA (non-esterified fatty acid), Glucose (Glu) and INS (insulin) in serum of healthy perinatal dairy cows and cows with ketosis. Twenty-one healthy cows and seventeen cows with ketosis...

Objectives: Ketosis is a common metabolic disease found in high-yielding dairy cows. This study aimed to clarify the correlation between ketosis occurrence and the follow indicators by analyzing the data of dairy herd improvement (DHI) and the peripheral blood cell component. Methods: The cow's...

The aim of this study was to validate and evaluate the influence of the relative position (Z-score) of the value of pooled sample metabolic parameters within the known reference value of healthy cows in the detection of ketosis in herd during early lactation. The experiment has been carried out...

The objective of this study was to identify changes in prepartum behavior associated with the incidence of postpartum diseases in dairy cows. Multiparous Holstein cows (n = 489) were monitored with accelerometers for 3 wk prepartum. Accelerometers measured steps, time at the feed bunk, frequency of ...

Ketosis and subclinical ketosis are widespread among dairy cows especially after calving. Etiopathology of ketosis has been related to negative energy balance. The objective of this study was to investigate metabolite fingerprints in the urine of pre-ketotic, ketotic, and post-ketotic cows to...

The objectives were to evaluate differences in serum concentration of metabolites, macro minerals and hepatic enzymes at pre and postpartum time-points in dairy cows diagnosed with clinical metritis, hypocalcaemia or ketosis postpartum. A total of 144 Holstein cows from 11 commercial dairy herds in ...

The overall aim of this thesis was to improve the on-farm diagnosis of subclinical ketosis pre- and postpartum and to gain further knowledge about the effects and classification of subclinical ketosis within the first six weeks of lactation. To evaluate the metabolic situation of dairy herds and to ...