Reference : Effects of dietary carbohydrate composition on rumen fermentation, plasma hormone and...
Scientific journals : Article
Life sciences : Animal production & animal husbandry
http://hdl.handle.net/2268/61481
Effects of dietary carbohydrate composition on rumen fermentation, plasma hormone and metabolites in growing fattening bull
English
Van Eenaeme, Christian [Université de Liège - ULg > Département de productions animales > Nutrition des animaux domestiques >]
Istasse, Louis mailto [Université de Liège - ULg > Département de productions animales > Nutrition des animaux domestiques >]
Gabriel, Annick mailto [Université de Liège - ULg > Département de morphologie et pathologie > Anatomie des animaux domestiques >]
Clinquart, Antoine mailto [Université de Liège - ULg > Département de sciences des denrées alimentaires > Technologie des denrées alimentaires >]
Maghuin-Rogister, Guy mailto [Université de Liège - ULg > Département de sciences des denrées alimentaires > Département de sciences des denrées alimentaires >]
Bienfait, Jean-Marie [Université de Liège - ULg > Département de productions animales > Nutrition des animaux domestiques >]
1990
Animal Production
Durrant Periodicals
50
409-416
Yes
International
0003-3561
[en] bulls ; Rumen fermentation ; Hormones ; cattle feeding ; diets ; carbohydrates ; beef cattle ; beet pulp ; Barley
[en] A finishing diet containing barley and sugarbeet pulp 500:200 or 200:500 g/kg was given to 12 bulls twice daily at 08.00 and 16.00 h. The high-pulp diet increased rumen acetic and butyric acids and decreased propionic acid compared with the high-barley diet. The diurnal patterns over a 24-h period of rumen pH, volatile fatty acids, glucose and ammonia were characterized by 2 cycles. The high-pulp induced more even fermentations as indicated by flatter curves with less extreme values than those produced by high-barley diet. Ammonia concentration was high before feeding and decreased subsequently during 4 to 6 h after the meal. No typical patterns were observed in plasma concentrations of glucose and alpha-amino nitrogen. Plasma urea concentration increased 2 h after feeding and dropped during the following 6 to 8 h. There were no effects of dietary carbohydrate composition on growth hormone concentration but plasma insulin was significantly reduced with the high-pulp diet. Furthermore, the insulin profile showed peaks after each meal with the high-barley diet but only after the afternoon feeding with the high-pulp diet.
Researchers ; Professionals
http://hdl.handle.net/2268/61481

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