Table 2.
Inclusion rates and nutrient composition of treatment diets consisting of pea hay (Pisum sativum L.; c.v. CDC Horizon) harvested at EARLY, MID, and LATE maturity for beef cattle diets
| Variable | Treatment1 | ||
|---|---|---|---|
| EARLY | MID | LATE | |
| Ingredient inclusion rate, % DM | |||
| Early pea | 40.00 | – | – |
| Mid pea | – | 40.00 | – |
| Late pea | – | – | 40.00 |
| Mineral2 | 16.44 | 16.44 | 16.44 |
| Oat pellet3 | 43.56 | 43.56 | 43.56 |
| Chemical composition, % DM | |||
| DM, % | 89.1 | 90.2 | 89.4 |
| OM | 95.26 | 95.52 | 95.71 |
| CP | 15.32 | 14.15 | 14.20 |
| aNDFOM | 41.98 | 42.15 | 37.67 |
| ADF | 29.59 | 29.54 | 25.49 |
| Ethanol soluble carbohydrates | 3.71 | 3.54 | 3.77 |
| Starch | 13.15 | 15.10 | 18.40 |
| Ether extract | 1.85 | 1.83 | 1.81 |
| Ca | 0.68 | 0.72 | 0.62 |
| P | 0.30 | 0.28 | 0.30 |
1Harvest maturities consisted of EARLY (plants with flat pods at one or more nodes), MID (filled pods at one or more nodes and leaves that were turning from green to gold), and LATE (yellow dry seeds filled pods on most nodes, and the leaves and pods were yellow).2Mineral was composed of ground wheat (69.3%), porcine tallow (9.3%), molasses (8.3%), and urea (5.0%). The supplement provided 2.1% Ca, 1.1% P, 0.2% Mg, 0.6% K, 0.4% Na, 0.8% Cl, 0.2% S, 86.2 ppm Mn, 182.2 ppm Cu, 555.5 ppm Fe, 282.7 ppm Zn, 2.9 ppm I, 0.6 ppm Co, 0.6 ppm Se, 14,543.6 IU/kg Vitamin A, 1,872.5 IU/kg Vitamin D3, 424.4 IU/kg Vitamin E, 0.10% monensin (Elanco Division of Eli Lilly Canada Inc., Guelph, ON, Canada), and 0.11% melengestrol acetate (MGA; Federated Co-operatives Limited; Saskatoon, SK, Canada).3Pellet was composed of oat hulls (50%), wheat middlings (40%), and molasses (10%).