Study Explores Temperature Predictability in Dairy Calves Using Boluses

In a recent study published in Scientific Reports, researchers examined the long-term repeatability and predictability of reticulorumen temperature in dairy calves. The study, conducted by A. Jolivald, J. Vázquez-Diosdado, and J. Kaler, focused on 98 dairy calves to understand how their body temperature varied before, during, and after weaning.

The research utilized reticulorumen temperature boluses to collect high-frequency temperature data over an extended period. Results indicated that the reticulorumen temperature was moderately repeatable, with a repeatability coefficient of 0.258. This suggests that while there is some consistency in temperature readings over time, individual variation remains significant.

Furthermore, the study found that temperature plasticity varied among individual calves, particularly during weaning stages. The predictability of reticulorumen temperature, measured as coefficient of variation for predictability (CVP), stood at 0.242, highlighting individual differences in how predictable these temperature readings were.

The influence of weaning on temperature patterns was complex, with calves showing different responses to the process. This variability underscores the importance of considering both inter- and intra-individual differences when using temperature data to detect disease in calves.

Funded by the Biotechnology and Biological Sciences Research Council in the United Kingdom, this research adds to the limited body of work on temperature variation in endothermic animals, emphasizing the potential of precision livestock farming tools in improving animal health management.