References of "Dufrasne, Isabelle"
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See detailL'axe sol-plante-animal dans les tétanies d'herbe
Dufrasne, Isabelle ULg; Istasse, Louis ULg

in Annales de Médecine Vétérinaire (1995), 139

Detailed reference viewed: 20 (11 ULg)
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See detailUtilisation de la paille dans des rations d'engraissement: ingestion, dynamique de la digestion et cinétique de dégradabilité dans le rumen
Mayombo, Asangule Pierre; Van Eenaeme, Christian ULg; Gauthier, Sabine et al

in Annales de Zootechnie (1995), 44

Detailed reference viewed: 8 (4 ULg)
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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 ▲]

Detailed reference viewed: 41 (1 ULg)
See detailEffects on performances of concentrate to young calves at grass
Dufrasne, Isabelle ULg; Korsak Koulagenko, Nicolas ULg; Mayombo, Asangule Pierre et al

in Proceedings of the 45th Annual Meeting of E.A.A.P. (1994)

Detailed reference viewed: 3 (1 ULg)
See detailEffects of the lenght of the grazing period on animal performances in fattening bulls finished indoor
Dufrasne, Isabelle ULg; Limbourg, Pierre; Gauthier, Sabine et al

in Proceedings of the 45th Annual Meeting of E.A.A.P. (1994)

Detailed reference viewed: 2 (0 ULg)
See detailEffets du tourteau de colza à différents taux d'incorporation dans une ration d'engraissement pour taurillons sur l'ingestion et les fermentations dans le rumen
Mayombo, Asangule Pierre; Van Calster, Pascale; Diez, Marianne ULg et al

in 9èmes Journées des Recherches sur l'Alimentation et la Nutrition des Herbivores (1994)

Detailed reference viewed: 6 (0 ULg)
See detailReduction of nitrogen fertilizer in a pasture grazed with dairy cows : Effects on milk production and on plasma urea
Dufrasne, Isabelle ULg; Limbourg, Pierre; Gielen, Marc ULg et al

in Proceedings of the 45th Annual Meeting of E.A.A.P. (1994)

Detailed reference viewed: 9 (1 ULg)
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See detailEffet du chargement et de la période de complémentation au pâturage sur les performances de taurillons finis en stabulation
Dufrasne, Isabelle ULg; Gielen, Marc ULg; Limbourg, Pierre et al

in Annales de Médecine Vétérinaire (1994), 138

Detailed reference viewed: 18 (0 ULg)
See detailEffects of inclusion of grazing period on performance of fattening bulls
Dufrasne, Isabelle ULg; Gielen, Marc ULg; Limbourg, Pierre et al

in Proceeding of the general meeting of the European grassland Federation Wagenings (1994)

Detailed reference viewed: 5 (0 ULg)
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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 ▲]

Detailed reference viewed: 26 (1 ULg)
See detailDegradability and fatty acid composition of a pea-rapeseed mixture either ground or extruded
Clinquart, Antoine ULg; Dufrasne, Isabelle ULg; Mayombo, Asangule Pierre et al

in Proceedings of the 44th Annual Meeting of E.A.A.P. (1993)

Detailed reference viewed: 3 (2 ULg)
See detailEffects of stocking rate and nitrogen fertilizer level on animal performance with suckling grazing cows
Dufrasne, Isabelle ULg; Gielen, Marc ULg; Limbourg, Pierre et al

in Procedings of the 44th Annual Meeting of E.A.A.P. (1993)

Detailed reference viewed: 2 (0 ULg)
See detailEffects of stocking rate on animal performance and profitability of grazing bulls finished indoors
Gielen, Marc ULg; Dufrasne, Isabelle ULg; Limbourg, Pierre et al

in Proceedings of the 44th Annual Meeting of E.A.A.P. (1993)

Detailed reference viewed: 5 (0 ULg)