References of "Vandenheede, Marc"
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See detailDevelopment of a methodology to measure fearfulness in horses.
Viérin, M.; Vandenheede, Marc ULg; Bouissou, Marie-France et al

Book published by Blackwell Science (1997)

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See detailDevelopment of a methodology to measure fearfulness in horses
Vierin, M.; Vandenheede, Marc ULg; Bouissou, M. F. et al

Conference (1997)

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See detailDevelopment of a methodology to measure fearfulness in horses
Vierin, M.; Vandenheede, Marc ULg; Bouissou, M. F. et al

Conference (1997)

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See detailEffects of castration on fear reactions of male sheep.
Vandenheede, Marc ULg; Bouissou, Marie-France

in Applied Animal Behaviour Science (1996), 47

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See detailLong-term effects of androgen treatment on fear reactions in ewes.
Bouissou, Marie-France; Vandenheede, Marc ULg

in Hormones & Behavior (1996), 30

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See detailReduction in fear reactions of isolated ewes and lambs by photographic images of conspecifics.
Bouissou, M. F.; Vandenheede, Marc ULg; Picard, M.

Conference (1996)

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See detailEffects of an enriched environment on subsequent fear reactions of lambs and their mothers.
Vandenheede, Marc ULg; Bouissou, Marie-France

in Applied Animal Behaviour Science (1995), 44

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See detailUse of shelter by grazing bulls: effect of climatic factors
Vandenheede, Marc ULg; Nicks, Baudouin ULg; Sheri, R. et al

in Animal Science (1995), 60

The time spent under a shelter by eight grazing fattening bulls of the Belgian Blue breed in each of 3 years consecutively for a total of 48 days was recorded using a time-lapse recorder with infrared ... [more ▼]

The time spent under a shelter by eight grazing fattening bulls of the Belgian Blue breed in each of 3 years consecutively for a total of 48 days was recorded using a time-lapse recorder with infrared illumination. During one grazing period, data were collected over 35 days (experiment 1). Observations were divided into 166 h with rain (20%) and 674 h without precipitation (80%). The average occupation rates were 15.4 (s.e. 29.1)% for the hours with rain and 4.5 (s.e. 14.8)% for the hours without precipitation (P < 0.001). The effect of intensity and duration of rain on the occupation rate was significant from 0.4 l/m(2) or from 2 h. Experiment 2 (13 days of observation) examined the influence of temperature and solar radiation on the use of shelter. The occupation rates were 21 (s.e. 23)% during the daylight hours (07.00 to 19.00 h), 6 (s.e. 8)% during the night (19.00 to 07.00 h) and 14 (s.e. 14)% during a 24-h period. The occupation rate between 07.00 and 19.00 h was significantly correlated to the mean daily temperature (r = 0.75), the maximum daily temperature (r = 0.86) and the direct solar radiation time (r = 0.60). When the maximum daily temperature exceeded 20 degrees C, the use of the shelter increased from 10 to 49% of the daylight hours. There was no significant difference between the live-weight gains of animals from the observed group and those of other bulls on an adjacent pasture without shelter. Nevertheless, these observations suggest that a shelter may improve the welfare of grazing cattle. [less ▲]

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See detailFear reactions of domestic sheep confronted with either a human or a human-like model
Bouissou, Marie-France; Vandenheede, Marc ULg

in Behavioural Processes (1995), 34

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See detailEffects of an enriched environment on fear reactions in sheep.
Bouissou, M. F.; Vandenheede, Marc ULg

Conference (1995)

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See detailInfluence de la pluie sur l'utilisation d'un abri par des taurillons au pâturage
Vandenheede, Marc ULg; Sheri, R.; Nicks, Baudouin ULg et al

in Annales de Médecine Vétérinaire (1994), 138

The time spent under a shelter by 8 grazing fattening bulls of the Belgian Blue breed was recorded during 35 days using a time-lapse recorder with IR illumination. The observation period was divided into ... [more ▼]

The time spent under a shelter by 8 grazing fattening bulls of the Belgian Blue breed was recorded during 35 days using a time-lapse recorder with IR illumination. The observation period was divided into 166 hours with rain (20 %) and 674 hours without precipitation (80 %). An occupation rate was calculated for each hour as the sum of the time spent under the shelter by each of the 8 bulls divided by 480 (8 animals x 60 minutes). The average occupation rates were 15.4 +/- 29.1 % for the hours with rain and 4.5 +/- 14.8 % for the hours without precipitation (P<0.001). The occupation rate was significantly influenced by intensity and duration of the rain : the occupation rate being higher during rainfall than with dry weather when the intensity of the rain was at least 0.4 l/m2 and the duration more than 2 hours. There was no significant difference between the live weight gain of the animals with a shelter and of other bulls grazing on an adjacent pasture without shelter. Our observations suggested however that a shelter may improve the welfare of the animals. [less ▲]

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See detailLes réactions de peur chez les ovins: quantification et facteurs de variation.
Bouissou, Marie-France; Vandenheede, Marc ULg; Romeyer, A.

Book published by INRA (1994)

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See detailFear reactions of ewes to photographic images
Vandenheede, Marc ULg; Bouissou, Marie-France

in Behavioural Processes (1994), 32

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