Keywords: Behavioural disorders

Synthesis of the scientific literature examining potential welfare indicators applicable to pet parrots. The study identifies indicators such as behavioral changes (activity level, social interactions, exploration), body measurements (weight, plumage condition) and abnormal behaviors. These results serve as a starting point for work on a species that is rarely studied. 

Scientific article showing that the repeated diffusion of bubbles in a tank improved the welfare of rainbow trout. The short-term (~7 weeks) and long-term (~21 weeks) enrichment effects were similar to those observed with more conventional environmental enrichment (provision of plants and shelter). The fish were less aggressive, less fearful and showed enhanced learning abilities.

Study comparing the welfare of broilers reared on conventional and welfare-certified farms. Chickens on the certified farm scored lower hock burn and feather dirtiness and had better gait scores, although corticosterone levels in feathers were higher, warranting further study.

Article on a summary report published by EURCAW-Pigs showing that sows are the pig category most affected by transport. The three risks specific to sows are: sensitivity to heat stress, a lack of transport suitability that is strongly connected to the poor general health of a large proportion of cull sows compared with average finisher sows, and the tendency of sows to fight when mixed with unfamiliar conspecifics.

Scientific article suggesting that active walking in broiler chickens can be a reliable indicator of health and welfare. Its sustained and regular pattern of expression is detectable by automated systems.  This smart detection of active walking deficiencies can be carried out both on an individual chicken and on a group of chickens, even at high stocking densities.

Article summarizing the various technological advances in the field of artificial intelligence for animal health and welfare.

This article, intended for inspectors in EU Member States, describes the effects of feed restriction on the welfare of pregnant sows. Indicators of hunger-related aggression and stereotypies are described, along with measures to help sows feel satiated by increasing the fibre content of their diet, and to mitigate these behaviors by modifying various aspects of the living environment.

Scientific article showing that the loss of an enrichment element (grooming brush) to which grazing cattle are accustomed can adversely affect welfare, measured here by indicators of cleanliness, growth and fecal cortisol.

Scientific article showing that offering chicks and juveniles a choice between different types of litter and perches has positive short- and long-term effects on the emotional state and physical condition of laying hens.

Scientific article to evaluate predictors for behavioral problems in dogs using the Animal Welfare Assessment Grid (AWAG)to gain a better understanding of the factors that influence their welfare. The study shows that aggression towards the caregiver, and the frequency of fear and anxiety episodes are predictive factors for behavioral problems.