Related Experiment Video
Updated: Jun 1, 2026
An Efficient Single-Person Technique for Milk Sampling from Laboratory Mice
Published on: March 28, 2025
Age-related changes of selected blood biochemical indicators in dairy calves during their first week of life
Agnieszka Herosimczyk1, Adam Lepczyński, Alicja Dratwa-Chałupnik
1Department of Animal Physiology and Cytobiology, Faculty of Biotechnology and Animal Husbandry, The West Pomeranian University of Technology, Dr Judyma 6, 71-466 Szczecin, Poland.
Abstract:
The aim of this study was to determine the influence of age and ingested food (colostrum and mature milk) on the concentrations of selected blood biochemical components connected with nitrogen and mineral metabolism in dairy calves during their first week of life. The experiment was carried out on 13 Polish Black and White breed dairy calves. The animals were fed colostrum within the first 3 days of postnatal life and thereafter the mature milk of their dams until the end ofthe experiment (7 days). The obtained results showed that intensive catabolic and anabolic changes in nitrogen occur in the first week of life. These changes were particularly intense during the first 24-48 hours of life and may reflect dynamic tissue remodelling. The results of this experiment also show that healthy calves efficiently regulate water and electrolyte homeostasis.
