“…For a suitable systemic ozone evaluation, differences between animal and human blood composition have to be taken into consideration. It is also important to notice that the human hematological and biochemical range are different when compared with the animals, which also diverges according to the gender, age, species, breed, and the altitude that those animals are ( Miglio et al., 2020 ; Mortola and Wilfong, 2017 ; Scholkmann et al., 2019 ; Wintrobe and Shumacker, 1936 ). For example, while in dogs, the hematocrit references value are between 37-55% in dogs, 24-45% in cats, 32-48% in horses and 41-54% in humans; the blood cell distribution in M/mm³ is 5-8,5 in dogs, 5-10 in cats, 6-12,9 in horses and 4,3-6 in humans ( Klaassen, 1999 ; Soares et al., 2012 ).…”