Ensiling and thermic treatment effects on ruminal carbohydrate fermentation and post-ruminal crude protein concentration in partial-crop peas and faba beans

This study was conducted to examine effects of ensiling, toasting or ensiling plus in partial-crop field peas and faba beans harvested each with 375 g dry matter/kg (Biologische Bundesanstalt, Bundessortenamt und Chemische Industrie (BBCH) scale 79 81, respectively) on gas production post-ruminal crude protein (PRCP) concentration by vitro incubation ruminal fluid batch-cultures. The silages made from (Rostock Model Silages) had a pH 4.3 4.6, respectively, were not typically lactic acid dominated. remained stable after opening for 100 h (peas) 168 (faba beans). Toasting simulated drying oven at 160 °C 60 min. Post-incubation accumulation profiles little affected treatment. Ensiling did alter effective PRCP. increased PRCP up 25 20%-points 35 11%-points beans, respectively. non-protein nitrogen soluble concentration, whilst decreased protein. Significant correlations existed between fraction B3 (neutral detergent-insoluble protein) (r≥0.84; P<0.05) C (acid (r≥0.79; P<0.05). both arginine lysine levels. It concluded that BBCH can provide readily available nutrients high-quality fibre the residual plant. However, preserving required balance reduction fermentability characteristics. reduced solubility PRCP, but it clear if usable ruminants partially bound into Maillard polymers.