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Environmental complexity and use of space in slow growing free range chickens
Production environments for meat poultry are generally bi-dimensional open areas where birds tend to cluster along the walls. We investigated the impact of increasing environmental complexity (EC) on slow-growing free-range chickens raised under commercial conditions. The study was conducted in four farms, each with three independent houses and outdoor ranges that were outfitted with panels, […]
Acute stress enhances sensitivity to a highly attractive food reward without affecting judgement bias in laying hens
Affective states can be evaluated by assessing shifts in the animal’s expectation of a positive and negative outcome in response to ambiguous cues, also known as judgement bias (JB). The aim of this study was to use a JB methodology, using a go/go type of task where animals are required to make an active choice, […]
The relevance of variations in group size and phenotypic appearance on the behaviour and movement patterns of young domestic fowl
Variations in the group size of laying hens might increase the risk of undesired behaviours with important consequences for the birds’ health and welfare. However, larger groups housed at constant densities also translate into larger enclosures that may increase space efficiency, therefore improving movement opportunities. The effects of group size (GS), phenotypic appearance (PA) and […]
Broiler chicken welfare assessment in GLOBALGAP® certified and non-certified farms in Brazil
Regarding broilers, Brazil is the third largest producer and the leading chicken meat exporter in the world. Independent certifications are required by some importers in the European Union (EU) to guarantee compliance with minimum welfare requirements. Our objective was to compare broiler chicken welfare in GLOBALGAP® certified (C) and non-certified (N) intensive farms in the […]
Effects of mother versus artificial rearing during the first 12 weeks of life on challenge responses of dairy cows
We investigated the effects of mother versus artificial rearing on the responses to a social and a non-social challenge in adulthood. Rearing of treatment groups only differed during the first 12 weeks of life. Artificially reared animals were separated from their mothers within 24 h after birth and fed via an automatic milk feeder six […]
Rooting area and drinker affect dunging behaviour of organic pigs
Hygiene is a common problem on outdoor runs of growing organic pigs. Manure and urine are mainly excreted outdoors and tend to spread all over the run. Reducing the soiled surface area may be beneficial to animal welfare, hygiene, ammonia emissions and labour, not only in organic but also in conventional systems. The objective was […]
Stereotypic behaviours in Melopsittacus undulatus: Behavioural consequences of social and spatial limitations
The demand for parrots for pet and scientific purposes is an increasing phenomenon. Yet, the cognitive complexity of these animals makes it difficult to fully satisfy their eco-ethological needs in captivity, and strategies commonly adopted for their husbandry are often unsuccessful in guaranteeing their wellbeing. In this study, we investigated the effects of environmental restrictions […]
Effect of feed allowance at pasture on lying behaviour and locomotory ability of dairy cows
In temperate climates where cows are primarily managed at pasture shortages of grass could result in nutritional deficits for the cow and thus pose a challenge to her welfare. This study investigated the effect of daily herbage allowance (DHA) on dairy cow lying behaviour, locomotory ability, and some aspects of hoof health. Ninety-six cows were […]
Behavioral changes and feathering score in heat stressed broiler chickens fed diets containing different levels of propolis
This experiment was conducted to evaluate the effects of dietary supplementation of green Brazilian propolis on behavioral patterns and feather condition of heat stressed broiler chickens. Five hundred and four (504) male Ross 708 broiler chicks at 15-day old were randomly allotted to six dietary treatments containing 0 (control), 100, 250, 500, 1000 and 3000 […]
Quantifying the impact of Wellington Zoo’s persuasive communication campaign on post-visit behavior
Zoos potential to facilitate visitor conservation behavior is commonly articulated. Few studies, however, have quantified whether zoos’ conservation messages result in visitors implementing the behavior. To test if zoo conservation messages are adopted at home, I implemented a persuasive communication campaign which advocated keeping cats indoor at night, a behavior that is a potential solution […]