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Development and application of a preference test system to evaluate housing conditions for laboratory rats
Improved knowledge of the ethological needs of laboratory animals can be used not only to verify current guidelines on laboratory animal housing, but also to refine these guidelines if desirable. Carefully chosen experiments can provide valid information about preferences or aversions towards specific housing conditions. The results of preference tests should be interpreted carefully and […]
The broad band social acoustic signaling behavior of spinnger and spotted dolphins
Efforts to study the social acoustic signaling behavior of delphinids have traditionally been restricted to audio-range (
Indicators of undernutrition in cattle
Potential biochemical indicators of long-term undernutrition in cattle, which could be used objectively, reliably and routinely, were investigated by evaluating frequently analysed metabolites in cattle. In an initial study, a meta-regression of literature data for glucose, urea, non-esterified fatty acids (NEFA) and β-hydroxybutyrate (BHB) against body condition score (BCS), body weight (BW) and its change […]
A first description of the physiological and behavioural responses to disbudding in goat kids
In order to determine the stress response to disbudding, physiological and behavioural response was investigated in disbudded kids and compared with a control group. Disbudded kids (n = 14), were disbudded by thermal cauterisation, and control kids (n = 15) received the same management without being disbudded. Cortisol was measured at −20, −10 and 0 […]
Relationship between rooting behaviour and foraging in growing pigs
The objective of the present study was to investigate the relationship between rooting behaviour and foraging in growing pigs. In study 1, forty-eight 11-week-old pigs were housed in eight groups of six with access to a rooting substrate in the form of spent mushroom compost. In half of the groups the rooting substrate contained food […]
Overall assessment of animal welfare: Strategy adopted in Welfare Quality®
Animal welfare is multidimensional; its assessment relies on complementary measures covering all dimensions. Welfare Quality® constructed a multicriteria evaluation model for its assessment at unit level (farms, slaughterhouses). Four welfare principles are distinguished (‘Good feeding’, ‘Good housing’, ‘Good health’, and ‘Appropriate behaviour’). An animal unit receives four principle scores (expressed on a 0-100 value scale). […]
A non-intrusive method of assessing plumage condition in commercial flocks of laying hens
Standard techniques for assessing plumage damage to hens from feather pecking typically require capture and handling. Handling of individual birds for plumage assessment is relatively easy in experimental studies; however, close inspection of individual birds in commercial flocks is less feasible because catching birds is difficult, may compromise bird welfare and affect egg production. The […]
Observer reliability for working equine welfare assessment: problems with high prevalences of certain results
Welfare issues relevant to equids working in developing countries may differ greatly to those of sport and companion equids in developed countries. In this study, we test the observer reliability of a working equine welfare assessment, demonstrating how prevalence of certain observations reduces reliability ratings. The assessment included behaviour, general health, wounds, and limb and […]
The response of marine tucuxis (Sotalia fluviatilis) towards tourist boats involves avoidance behaviour and a reduction in foraging
Marine ecotourism has undergone worldwide expansion in recent years, leading to increased concern regarding the impact on the environment. Despite this, however, few studies into the potential effect of tourist boats on dolphin welfare, have been carried out. In order to evaluate the impact of these activities on the presence and foraging behaviour of the […]
Welfare assessment of broilers through examination of haematomas, foot-pad dermatitis, scratches and breast blisters at processing
Analysis of post mortem lesions is a common means for assessing poultry welfare during rearing and pre-slaughter handling. The aim of this study was to determine the influence of: age, sex, rearing system, total number of birds on-farm, period between catch and slaughter and distance from poultry house to processing plant on the incidence of: […]