With the use of technology in the livestock sector, it has been allowed an increase in animal production and reduction of waste with more precision. The use of these technological resources in the sector gave rise to Precision Cattle Raising, which makes use of information and communication technology to extract the best from animal production with more precision. Studies show the use of te-lemetry to measure the state of animal welfare. However, during transportation from the farm to the slaughterhouse there is no specific way to check animal wel-fare, this can affect meat quality and the livestock economic sector and animal production. This study aims to identify the variables that can be read through sen-sors or biomarkers for monitoring animal welfare.