Table 2. Animal welfare levels items by the welfare quality animal welfare assessment protocol for sows and piglets [18]

Measurement items	Welfare criteria	Principal
Body condition score	Absence of prolonged hunger	Good feeding
Water supply	Absence of prolonged thirst
Bursitis, shoulder sores, manure on the body	Comfort around resting	Good housing
Panting, huddling	Thermal comfort
Space allowance	Ease of movement
Lameness, wounds on the body, vulva lesions	Absence of injuries	Good health
Mortality, coughing, sneezing, skin condition, ruptures and hernias	Absence of disease
Social behavior	Expression of social behaviors	Appropriate behavior
Stereotypies, exploratory behavior	Expression of other behaviors
Fear humans	Good human-animal relationship