Publication Number 410-853, June 1996
Table 2. The Amount of Hay, Shelled Corn (SC) and Soybean Meal (SBM) required to meet the total Digestible Nutrients (TDN) and Crude Protein (CP) Requirements of a 175-lb Ewe when the Hay Contains Different Protein Levels.
| Percent protein in hay* | |||||
|---|---|---|---|---|---|
| 16.5 | 15.0 | 12.5 | 10.0 | ||
| Stage of production | lb | ||||
| Maintenance | Hay | 3.25 | 3.25 | 3.25 | 3.25 |
| Early pregnancy | Hay | 3.75 | 3.75 | 3.75 | 3.75 |
| Late pregnancy | Hay | 4.20 | 4.20 | 4.20 | 4.20 |
| SC | 1.00 | 1.00 | 1.00 | 1.00 | |
| SBM | - | - | - | 0.10 | |
| Early lactation (single) | Hay | 5.00 | 5.00 | 5.00 | 5.00 |
| SC | 1.50 | 1.50 | 1.40 | 1.15 | |
| SBM | - | - | 0.10 | 0.40 | |
| Early lactation (twins) | Hay | 5.00 | 5.00 | 5.00 | 5.00 |
| SC | 2.25 | 2.15 | 1.90 | 1.50 | |
| SBM | - | 0.10 | 0.40 | 0.75 | |
| Early lactation (triplets) | Hay | 3.50 | 3.50 | 3.50 | 3.50 |
| SC | 3.15 | 2.95 | 2.70 | 2.45 | |
| SBM | 0.45 | 0.65 | 0.90 | 1.15 | |
Note: Adjusted from dry matter values: Corn--80% TDN and 8.8% CP, SBM--80% TDN and 44 % CP, Hay--50% TDN. TDN of hay increases as hay quality increases, but is left constant here for ease of discussion and diet calculations.
*Percentages are figured on an as-fed basis, as are the pounds of feed.
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