YIELD AND NUTRITIVE VALUE OF WHOLE-PLANT CEREALS AT A SILAGE STAGE

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Abstract
Ten cereal cultivars and two cereal mixtures were sown at two locations in 3 yr to determine the effects of species, cultivar and location on dry matter (DM) yield, protein and digestibility levels at the soft-dough stage. Jubilee barley (Hordeum vulgare L.) and a 40:60 mixture of Glen oats (Avena sativa L.) and Jubilee barley, respectively, produced significantly higher DM yields than Warrior and Piroline barley and Pitic 62 spring wheat (Triticum aestivum L.). Rosner triticale (Triticosecale Whitmack) was lower yielding than all cultivars except Warrior at one location. The average DM digestibility and protein levels for barley exceeded those for oats by 6.5 and 1.4 units, respectively. Likewise, the actual values for Pitic 62 spring wheat were 8.2 digestible units and 1.1 protein units above those of oats. Rosner triticale was intermediate between oats and barley for digestibility and crude protein. Jubilee in mixture with Glen produced more digestible DM than Pitic 62, Rosner, Sioux, Glen, Warrior and Piroline sown alone.

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