In situ ruminal degradability and fermentation characteristics of novel mixtures of winter cereal and Italian ryegrass plus winter cereal silages

This study was conducted using three multiparous non-lactating rumen-cannulated Holstein-Friesian dairy cows, with the objective of evaluating in situ ruminal degradability and fermentation characteristics novel mixtures winter cereal Italian ryegrass (Lolium multiflorum Lam.) plus silages (mixture A: triticale, oats, barley wheat; mixture B: C: oats; D: ryegrass, wheat). The rumen replacing ensiled (experimental diets) vetch-triticale haylage a total mixed ration (control diet). It found that effective protein at 0.08 outflow rates 80.6% A), 66.2% B), 79.7% C) 79.3% D). neutral detergent fibre (NDF) acid (ADF) 18.0% 17.7% 19.7% 20.5% 19.1% 17.0% C), 15.2% 14.6% D), respectively. Different dietary treatments did not change (P > 0.05) as there no difference between control experimental diets, inclusion 40-55% C D) cause any difference. These results suggest cereals cereal-based had good potentially degradable dry matter, matter 0.01, 0.05 without affecting environment maintaining pH. moderate level NDF ADF fractions.