Chemical composition of fresh winter forage rape and fresh perennial ryegrass.

a Dry matter.b The number of field replicates of forage samples; data are means ± SEM.cP value for the difference between forage rape and perennial ryegrass.d The number of field replicates of forage samples for the determination of dry matter contents was 18 per forage.e Hot water-soluble carbohydrates plus pectin.f Neutral detergent fibre assayed with a heat stable amylase and expressed inclusive of residual ash.g Acid detergent fibre expressed inclusive of residual ash.h Ratio of readily fermentable carbohydrates: structural carbohydrates (hemicellulose + cellulose).i Lignin determined by solubilization of cellulose with sulfuric acid (sa).Chemical composition of fresh winter forage rape and fresh perennial ryegrass.