This study was undertaken to further understand the effects of ‘jetting’ of a particular pen or deck on the heat stress risk for livestock, in accordance with the recommendations of the report Potential benefits of jetting to the HotStuff model.

Jetting refers to a component of the ship's ventilation where a controlled and measurable air velocity is directed across a specified area, in this case an individual pen on the deck of a ship.

The report details how a normalised jetting factor may be incorporated into the HotStuff model, and outlines the information required as well as the possible animal welfare and commercial outcomes.