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Background  In cooler climates such as found in Scandinavian countries cereals are important feedstuffs for ruminants often ensiled as whole‐crop cereal silages ( WCCS ) to preserve nutrients. Animal performance varies with the type of cereal forage and stage of cereal development being ensiled. Cell wall isolation and analysis was undertaken to determine differences among cereal silages harvested at different stages of maturity.    Results  A set of 27  WCCS  samples of barley, wheat and oats harvested at heading, early milk, and dough stages of maturity were analyzed for cell wall ( CW ) composition and compared to previous  NDF  analyses. Total  CW  concentrations of the  WCCS  were higher than the  NDF  concentration. The lignin concentration was higher ( P  < 0.001) in oats (111 g kg −1   DM ) than in barley (88 g kg −1   DM ) and wheat (91 g kg −1   DM ). Ferulates (ester and ether linked) ranged from 12.2 to 14.9 g kg −1  across forage types and maturity stages. The correlation between total cell wall xylose and  HC  concentrations ( NDF‐ADF ) was lower than expected in all forages ( R  = 0.63).    Conclusion  The more comprehensive analyses of cell walls provide detailed composition of the different  WCCS  that vary due to the maturity and type of cereal. © 2016 The Authors.  Journal of The Science of Food and Agriculture  published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

Cell wall chemical characteristics of whole‐crop cereal silages harvested at three maturity stages