The overall objective of this project was to update and validate the animal parameters in the ‘HotStuff’ model released in 2001. The report found additional data sets were consistent with the original heat stress data applied in the HS software and recommended a slight change to the heat stress threshold, mortality limit and coat factor for Bos taurus dairy (Friesian) cattle.

The overall objective of this project was to update and validate the animal parameters in the ‘HotStuff’ model released in 2001. The report found additional data sets were consistent with the original heat stress data applied in the HS software and recommended a slight change to the heat stress threshold, mortality limit and coat factor for Bos taurus dairy (Friesian) cattle.