To address such a problem that since animals cannot speak, they cannot communicate intentions thereof to humans, accordingly, owners cannot acquire physical conditions of animals and are unable to manage the physical conditions of the animals.SOLUTION: A physical condition of an animal is determined by collecting
saliva thereof and measuring a
saliva ORP value. However, it is very difficult to get an animal to hold a swab for collecting
saliva in the
oral cavity, and even when an owner has a good relationship with the animal such as a pet, the animal may bare fangs and fiercely
resist if the owner tries to get the animal to hold the
saliva collection swab in its mouth. Accordingly, there is provided a
saliva collection device that can collect saliva from the animal and easily determine the animal's physical condition by the saliva ORP value.SELECTED DRAWING: Figure 4