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Milk urea content as influenced by geographical area and season in Wallonia
Meura, Stéphane; Dufrasne, Isabelle; Cabaraux, Jean-François et al.
2007In Permanent and temporary grassland plant, environment and economy; A. De Vliegher and L. Carlier (Eds); Proceedings of 14th symposium of the European Grassland Federation
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Keywords :
Milk Urea; Wallonia; month; diet; area
Abstract :
[en] Milk urea concentration is routinely determined in commercial dairy farms along with the official milk analyses carried out on milk samples for the dairies by the “Comité du lait”. The milk urea content do not modify milk price but can be useful for the farmers for diet calculation, milk urea content being related to the energy-protein ratio in the diet. The aim of this paper was to study the evolution of the milk urea content according to the months and the areas. Milk urea concentration changed according to the months owing to the diet: the summer diets, mainly composed by grass in many farms, were characterized by higher nitrogen content which as result an increase in milk urea concentration. The geographic areas can also influence milk urea concentration due to dietary difference. For example, in the Hesbaye area, beet and cereals are produced while in the Ardennes, grasslands are dominant. The urea content in milk can be an useful measurement for the diet calculations in order to decrease nitrogen waste and to reduce the feed costs.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Meura, Stéphane
Dufrasne, Isabelle  ;  Université de Liège - ULiège > Département de productions animales > Nutrition des animaux domestiques
Cabaraux, Jean-François  ;  Université de Liège - ULiège > Département de productions animales > Ecologie et éthologie vétérinaires
Istasse, Louis ;  Université de Liège - ULiège > Département de productions animales > Nutrition des animaux domestiques
Hornick, Jean-Luc  ;  Université de Liège - ULiège > Département de productions animales > Nutrition des animaux domestiques
Language :
English
Title :
Milk urea content as influenced by geographical area and season in Wallonia
Publication date :
2007
Event name :
14th symposium of the European Grassland Federation
Event organizer :
EGF
Event place :
Ghent, Belgium
Event date :
3-5 septembre
Audience :
International
Main work title :
Permanent and temporary grassland plant, environment and economy; A. De Vliegher and L. Carlier (Eds); Proceedings of 14th symposium of the European Grassland Federation
Collection name :
Grassland Science in Europe, Vol 12
Pages :
375-377
Peer reviewed :
Peer reviewed
Available on ORBi :
since 12 March 2009

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